97-33314. Control of Air Pollution From New Motor Vehicles and New Motor Vehicle Engines: State Commitments to National Low Emission Vehicle Program  

  • [Federal Register Volume 63, Number 4 (Wednesday, January 7, 1998)]
    [Rules and Regulations]
    [Pages 926-987]
    From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
    [FR Doc No: 97-33314]
    
    
    
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    _______________________________________________________________________
    
    Part II
    
    
    
    
    
    Environmental Protection Agency
    
    
    
    
    
    _______________________________________________________________________
    
    
    
    40 CFR Parts 9, 85, and 86
    
    
    
    Control of Air Pollution From New Motor Vehicles and New Motor Vehicle 
    Engines: State Commitments to National Low Emission Vehicle Program; 
    Final Rule
    
    Federal Register / Vol. 63, No. 4 / Wednesday, January 7, 1998 / 
    Rules and Regulations
    
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    ENVIRONMENTAL PROTECTION AGENCY
    
    40 CFR Parts 9, 85, and 86
    
    [AMS-FRL-5938-8]
    RIN 2060-AF75
    
    
    Control of Air Pollution From New Motor Vehicles and New Motor 
    Vehicle Engines: State Commitments to National Low Emission Vehicle 
    Program
    
    AGENCY: Environmental Protection Agency (EPA).
    
    ACTION: Final rule.
    
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    SUMMARY: Today EPA is finalizing the necessary federal regulations for 
    a voluntary clean car program called the National Low Emission Vehicle 
    (``National LEV'') program, which is designed to reduce smog and other 
    pollution from new motor vehicles. The program will come into effect 
    only if the northeastern states (members of the Ozone Transport 
    Commission or ``OTC'') and the auto manufacturers sign up for it. The 
    National LEV regulations allow manufacturers to commit to meet tailpipe 
    standards for cars and light light-duty trucks that are more stringent 
    than EPA can mandate. Manufacturers have said they would be willing to 
    commit to the program if the OTC States also make binding commitments 
    to the program. Once the program comes into effect, it would be 
    enforceable in the same manner as any other federal new motor vehicle 
    program.
        After spending years helping to develop the program, the OTC States 
    and the auto manufacturers must now decide whether to commit to it and 
    allow the country to benefit from significant reductions in pollution. 
    National LEV would also achieve the same (or better) emission 
    reductions in the Ozone Transport Region (OTR) as would OTC State 
    adopted new motor vehicle programs. Under National LEV there would be 
    substantial harmonization of federal and California new motor vehicle 
    standards and test procedures, which would enable manufacturers to 
    design and test vehicles to one set of standards nationwide. The 
    program would demonstrate how cooperative, partnership efforts can 
    produce a smarter, cheaper program that reduces regulatory burden while 
    increasing protection of the environment and public health.
    
    DATES: This regulation is effective January 7, 1998. The information 
    collection requirements contained in this rule has been approved by the 
    Office of Management and Budget (OMB) and has an assigned OMB control 
    number of 2060-0345.
    
    ADDRESSES: Materials relevant to this final rule have been placed in 
    Public Docket No. A-95-26. The docket is located at the Air Docket 
    Section, U.S. Environmental Protection Agency, 401 M Street SW, 
    Washington, DC 20460 (Telephone 202-260-7548; Fax 202-260-4400) in Room 
    M-1500, Waterside Mall, and may be inspected weekdays between 8:00 a.m. 
    and 5:30 p.m. A reasonable fee may be charged by EPA for copying docket 
    materials. For further information on electronic availability of this 
    final rule, see the SUPPLEMENTARY INFORMATION section below.
    
    FOR FURTHER INFORMATION CONTACT: Karl Simon, Office of Mobile Sources, 
    U.S. Environmental Protection Agency, 401 M Street SW, Washington, DC 
    20460. Telephone (202) 260-3623; Fax (202) 260-6011; e-mail 
    simon.karl@epamail.epa.gov.
    
    SUPPLEMENTARY INFORMATION:
    
    Regulated entities
    
        Entities potentially regulated by this action are those that 
    manufacture and sell motor vehicles in the United States. Regulated 
    categories and entities include:
    
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                                                    Examples of regulated   
                     Category                             entities          
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    Industry..................................  New motor vehicle           
                                                 manufacturers.             
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        This table is not intended to be exhaustive, but rather provides a 
    guide for readers regarding entities likely to be regulated by this 
    action. This table lists the types of entities that EPA is now aware 
    could potentially be regulated by this action. Other types of entities 
    not listed in the table could also be regulated. To determine whether 
    your activities are regulated by this action, you should carefully 
    examine the applicability criteria in Sec. 86.1701-99. If you have 
    questions regarding the applicability of this action to a particular 
    entity, consult the person listed in the preceding FOR FURTHER 
    INFORMATION CONTACT section.
    
    Obtaining Electronic Copies of the Regulatory Documents
    
        The preamble, regulatory language, response to comments document, 
    and other related documents are also available electronically from the 
    EPA Internet Web site. This service is free of charge, except for any 
    cost you already incur for internet connectivity. The electronic 
    Federal Register version is made available on the day of publication on 
    the primary Web site listed below. The EPA Office of Mobile Sources 
    also publishes Federal Register notices and related documents on the 
    secondary Web site listed below.
        1. http://www.epa.gov/docs/fedrgstr/EPA-AIR/ (either select desired 
    date or use Search feature)
        2. http://www.epa.gov/OMSWWW/lev-nlev.htm
        Please note that due to differences between the software used to 
    develop the document and the software into which the document may be 
    downloaded, changes in format, page length, etc. may occur.
    
    I. Outline
    
        The preamble is organized into the following sections.
    
    I. Outline
    II. Background
    III. National LEV Start Date
    IV. National LEV Will Produce Larger VOC and NOx Emission Reductions 
    in the OTR Compared to OTC State Adopted Section 177 Programs
    V. OTC State Commitments
        A. Duration of OTC State Commitments and of the National LEV 
    Program
        B. Timing of OTC State Commitments, Manufacturer Opt-Ins, and 
    EPA Finding that National LEV is in Effect
        C. OTC State Commitments, Manufacturer Opt-Ins, and EPA Finding 
    that National LEV is in Effect
        1. Initial Opt-In by OTC States
        2. Manufacturer Opt-Ins
        3. EPA Finding that National LEV is in Effect
        4. SIP Revisions
    VI. Incentives for Parties to Keep Commitments to Program
        A. Offramp for Manufacturers for OTC State Violation of 
    Commitment
        1. OTC State No Longer Accepts National LEV as a Compliance 
    Alternative
        2. OTC State Fails to Submit SIP Revision Committing to National 
    LEV
        3. OTC State Submits Inadequate SIP Revision Committing to 
    National LEV
        4. OTC State Without an Existing ZEV Mandate Adopts a Backstop 
    ZEV Mandate
        B. Offramp for Manufacturers if OTC State or Manufacturer 
    Legitimately Opts Out of National LEV
        C. Offramp for Manufacturers for EPA Failure to Consider In-Use 
    Fuel Issues
        D. Offramps for OTC States
        1. Manufacturer Opt-Out
        2. Periodic Equivalency Determination
        E. Lead Time Under Section 177
    VII. National LEV Will Produce Creditable Emissions Reductions 
    Because it is Enforceable
        A. OTC States Will Keep Their Commitments to National LEV
        B. It is Unlikely That National LEV Would Be Found Not to 
    Produce Emission Reductions Equivalent to OTC State Section 177 
    Programs
    
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        C. EPA is Unlikely to Fail to Consider In-Use Fuels Issues Upon 
    a Manufacturer's Request
    VIII. Additional Provisions
        A. Early Reduction Credits for Northeast Trading Region
        B. Calculation of Compliance with Fleet Average NMOG Standards
        C. Certification of Tier 1 Vehicles in a Violating State
        D. Provisions Relating to Changes to Stable Standards
        E. Nationwide Trading Region
        F. Elimination of Five-Percent Cap on Sales of Tier 1 Vehicles 
    and TLEVs in the OTR
        G. Technical Corrections to Final Framework Rule
        H. Clarifications to Final Framework Rule
        1. Operation of National LEV Vehicles on In-Use Fuels
        2. Clarification of Banking and Trading Provisions
        3. Recordkeeping Requirements
    IX. Supplemental Federal Test Procedures
        A. Background
        B. Elements of the CARB Proposal and Applicability Under 
    National LEV
        1. Test Procedure
        2. Emission Standards
        a. LEVs and ULEVs
        b. Tier 1 Vehicles and TLEVs
        3. Implementation Schedule
        4. Implementation Compliance
    X. Administrative Requirements
        A. Administrative Designation
        B. Regulatory Flexibility
        C. Unfunded Mandates Reform Act
        D. Congressional Review of Agency Rulemaking
        E. Reporting and Recordkeeping Requirements
        F. Effective Date
    XI. Judicial Review
    XII. Statutory Authority
    
    II. Background 1
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        \1\ Although this section contains a brief summary of the 
    National LEV program and the process that led up to it, this notice 
    assumes that the reader has an in-depth understanding of the 
    National LEV program and is familiar with the previous National LEV 
    rulemaking notices (i.e., the August, 1997, Supplemental Notice of 
    Proposed Rulemaking (SNPRM); the October, 1995, Notice of Proposed 
    Rulemaking (NPRM); and the June, 1997, Final Framework Rule cited in 
    n.2). Readers should review those documents for in-depth discussion 
    of the program, the process and other background information.
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        Today's Final Rule (FRM) is another step towards a voluntary clean 
    car program (``National LEV'') that can help control emissions 
    nationwide as well as in the northeastern states. As discussed in 
    previous Federal Register notices,2 there have been a number 
    of regulatory and other steps in the development of this program. 
    Today's notice concludes the federal regulatory steps necessary to set 
    up the voluntary clean car program, which will then come into effect if 
    the auto manufacturers and the OTC States commit to it. In June of this 
    year, EPA published a final rule setting forth the framework for the 
    program, including the specific standards that would apply to new motor 
    vehicles if manufacturers opted in. See 62 FR 31192 (June 6, 1997) 
    (``Final Framework Rule''). Today's rule finalizes the regulations for 
    the National LEV program. It is now up to the OTC States and the auto 
    manufacturers to determine whether the program will come into effect.
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        \2\  See 60 FR 4712 (Jan. 24, 1995), 60 FR 52734 (Oct. 10, 
    1995); 62 FR 31192 (June 6, 1997); 62 FR 44754 (Aug. 22, 1997).
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        Under the National LEV program, auto manufacturers will have the 
    option of agreeing to comply with tailpipe standards that are more 
    stringent than EPA can mandate prior to model year (MY) 2004. Once 
    manufacturers commit to the program, the standards will be enforceable 
    in the same manner that other federal motor vehicle emissions control 
    requirements are enforceable. See the Final Framework Rule at 62 FR 
    31201-31223 for a detailed discussion of the program structure, 
    tailpipe and related standards, and legal authority for and 
    enforceability of National LEV. Manufacturers have indicated their 
    willingness to volunteer to meet these tighter emissions standards if 
    EPA and the northeastern states (i.e., those in the Ozone Transport 
    Commission (OTC) or the ``OTC States'') agree to certain conditions, 
    including providing manufacturers with regulatory stability and 
    reducing regulatory burdens by harmonizing federal and California motor 
    vehicle emissions standards.
        The National LEV program has been developed through an 
    unprecedented, cooperative effort by the OTC States, auto 
    manufacturers, environmentalists, fuel providers, EPA and other 
    interested parties. The OTC States and environmentalists provided the 
    opportunity for this cooperative effort by pushing for adoption of the 
    California Low Emission Vehicle (CAL LEV) program throughout the 
    northeast Ozone Transport Region (OTR). Under EPA's leadership, the 
    states, auto manufacturers, environmentalists, and other interested 
    parties then embarked on a process to develop a voluntary National LEV 
    program, a process marked by extensive public participation and a focus 
    on joint problem solving. See the Final Framework Rule at 62 FR 31199 
    and the NPRM at 60 FR 52739-52740 for further discussion of public 
    participation in the National LEV decision making process.
        National LEV will provide public health and environmental benefits 
    by reducing air pollution nationwide. Both inside and outside the OTR, 
    National LEV will reduce ground level ozone, the principle harmful 
    component in smog, as well as emissions of other pollutants, including 
    particulate matter (PM), benzene, and formaldehyde. The Final Framework 
    Rule contains a substantive discussion on the health and environmental 
    benefits of the National LEV program. See 62 FR 31195. EPA has 
    determined that the National LEV program will result in emissions 
    reductions in the OTR that are equivalent to or greater than the 
    emissions reductions that would be achieved through adoption of the CAL 
    LEV program in the OTR. National LEV will also provide manufacturers 
    regulatory stability and reduce regulatory burden by harmonizing 
    federal and California motor vehicle standards. This will reduce 
    testing and design costs for motor vehicles, as well as allow more 
    efficient distribution and marketing of vehicles nationwide. See the 
    Final Framework Rule at 60 FR 31195-31197 and 31224 for further 
    discussion of the benefits of the National LEV program.
        In addition to the national public health benefits that would 
    result from National LEV, the program has been motivated largely by the 
    OTC's efforts to reduce motor vehicle emissions either by adoption of 
    the CAL LEV program throughout the OTR or by adoption of the National 
    LEV program. One of the OTC States' efforts was a petition the OTC 
    filed with EPA. On December 19, 1994, EPA approved this petition, which 
    requested that EPA require all OTC States to adopt the CAL LEV program 
    (called the Ozone Transport Commission Low Emission Vehicle (OTC LEV) 
    program). See 60 FR 4712 (January 24, 1995) (``OTC LEV Decision''). See 
    the Final Framework Rule at 60 FR 31195 for a summary of EPA's 
    decision. In March, 1997, the U.S. Court of Appeals for the District of 
    Columbia affirmed states' rights to adopt the CAL LEV program, but 
    reversed EPA's decision requiring the OTC States to do so. Virginia v. 
    EPA, 108 F.3d 1397 (D.C. Cir. 1997). Some, but not all, OTC States have 
    adopted CAL LEV programs to date.
        Given statutory constraints on EPA, National LEV will be 
    implemented only if it is agreed to by the OTC States and the auto 
    manufacturers. EPA does not have authority to force either the OTC 
    States or the manufacturers to sign up to the program. EPA cannot 
    require the auto manufacturers to meet the National LEV standards, 
    absent the manufacturers' consent, because section 202(b)(1)(C) of the 
    Clean Air Act (CAA, or ``the Act'') prevents EPA itself from mandating 
    new exhaust standards applicable before model year 2004. The auto 
    manufacturers have indicated that they would be willing to opt into
    
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    National LEV only if the OTC States make certain commitments, including 
    committing to allow the manufacturers to comply with National LEV in 
    lieu of certain CAL LEV programs adopted under section 177 of the CAA 
    (Section 177 Programs). EPA cannot require the OTC States to make such 
    commitments (although EPA can issue regulations to help make the 
    commitments enforceable). Thus, National LEV cannot come into effect 
    absent the agreement of the auto manufacturers and the OTC States.
        Over the past several years, the OTC States and the auto 
    manufacturers have conducted negotiations to develop an agreement on 
    National LEV to be contained in a Memorandum of Understanding (MOU). 
    The parties have reached agreement on most provisions of the National 
    LEV program. Each side has sent EPA an MOU that it has initialed, 
    indicating its agreement with the National LEV program as contained in 
    that Memorandum of Understanding.3 Although there are 
    differences in the two Memoranda, they show that agreement has been 
    reached between the OTC States and the auto manufacturers on most of 
    the provisions of the National LEV program. Based on the MOUs provided 
    to the Agency, EPA issued the Final Framework Rule on June 6, 1997, 
    setting the framework for and describing most of the elements of the 
    National LEV program.
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        \3\ See Docket No. A-95-26, IV-G-31 and IV-G-34.
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        Although the parties had hoped to jointly sign a comprehensive MOU 
    affirming their mutual agreement on the National LEV program, the 
    parties now agree that further discussions are unlikely to result in 
    resolution of the last outstanding issues. Nonetheless, EPA and the 
    parties believe that National LEV would provide substantial public 
    health and environmental benefits. Failure to come to agreement on a 
    National LEV program would be a significant lost opportunity to improve 
    the nation's air quality.
        EPA believes there is sufficient common ground between the parties 
    to provide a basis for a National LEV program to which all parties 
    could agree to opt into. EPA believes that finalizing a program for the 
    OTC States and manufacturers to evaluate as a whole presents the 
    greatest likelihood that the country will achieve the benefits of 
    National LEV, on which many stakeholders worked hard over the years. 
    EPA encourages the auto manufacturers and OTC States to opt in so the 
    country does not lose the significant benefits of National LEV.
        Today's final rule (FRM) finalizes regulations on issues relating 
    to how the OTC States will voluntarily opt in to the National LEV 
    program and commit to allow motor vehicle manufacturers to comply with 
    the National LEV program in lieu of state Section 177 Programs. These 
    issues include the duration of the OTC State commitments, the 
    instruments and process through which the OTC States will commit to the 
    program, and the substantive details of their commitments.
        Today's FRM also addresses several other outstanding structural 
    details of the National LEV program. These provisions include the 
    timing of OTC State and auto manufacturer opt-ins to the National LEV 
    program, incentives for the parties to keep their commitments to the 
    National LEV program and conditions under which OTC States and 
    manufacturers could exit the program (``offramps''), and the start date 
    of the National LEV program.
        In addition, today's FRM includes several modifications and 
    clarifications of several issues addressed to some extent in the Final 
    Framework Rule. These include provisions relating to how the off-cycle 
    supplemental federal test procedure would apply to National LEV 
    vehicles and provisions relating to banking and trading of emissions 
    credits. For additional explanation of the rationale for today's rule 
    and responses to comments, see the Summary and Analysis of Comments for 
    the Final Rule.
    
    III. National LEV Start Date
    
        In the SNPRM, EPA proposed to have the National LEV program start 
    in MY1999, which reflected a change from the original proposed start 
    date of MY1997.5 See 62 FR 44756-57. EPA explained that this 
    change in the start date was necessary because requiring a start date 
    of MY1997 or MY1998 was unrealistic given the delays associated with 
    finalizing the program and the inability of manufacturers to produce 
    and certify National LEV vehicles before MY1999. Additionally, EPA 
    noted that there was no longer a legal requirement for National LEV to 
    produce emissions reductions at least equivalent to those that would be 
    produced by OTC LEV due to the court case overturning EPA's decision 
    granting the OTC's petition. (See Virginia v. EPA, supra.) EPA received 
    no negative comments regarding this proposed change in program start 
    date. EPA is today finalizing its proposal to have the National LEV 
    program start in MY1999 in the OTR.
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        \5\ The National LEV program will start in MY2001 nationwide. 
    The nationwide start date was not at issue in the SNPRM.
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        The change in program start date reflects in part EPA's belief 
    that, given the voluntary nature of the National LEV program, it would 
    be unreasonable to retain the MY1997 start date and have the program 
    begin with some manufacturers having debits from not meeting the fleet 
    average NMOG standards for MY1997 and MY1998. Such debits would be 
    difficult to erase given the increasing stringency of the fleet average 
    NMOG standards and the limited ability of manufacturers to modify their 
    production plans quickly, once the program is in effect, to manufacture 
    a number of National LEV vehicles sufficient to demonstrate compliance 
    with the applicable fleet average NMOG standards.
        The MY1999 start date for the National LEV program does not mean 
    that the program is being delayed two years, but merely that the 
    National LEV requirements for MY1997 and MY1998 are being dropped from 
    the regulations. Therefore, the fleet average NMOG standards for MY1999 
    are 0.148 g/mi for light-duty vehicles and light-duty trucks (0-3750 
    pounds LVW) and 0.190 g/mi for light-duty trucks between 3750-5750 
    pounds LVW. As stated above, the MY2001 nationwide fleet average NMOG 
    standards remain unchanged.
        EPA also took comment on allowing manufacturers to sell California-
    certified vehicles 6 instead of National LEV vehicles 
    throughout the Northeast Trading Region (NTR) for MY1999 and MY2000 as 
    a means to help manufacturers meet their fleet average NMOG standards 
    for these two model years. Manufacturers expressed concern that they 
    might have difficulty producing and certifying National LEV vehicles 
    for MY1999 given that certification of MY1999 vehicles will likely 
    start before EPA is able to find that National LEV is in effect. EPA 
    believes it is appropriate to provide some limited flexibility to 
    manufacturers in a way that does not undercut the environmental 
    benefits of the fleet average NMOG standards in the first year of the 
    program. Thus, for MY1999 only, EPA will issue federal National LEV 
    certificates that will allow manufacturers to sell California-certified 
    TLEV, LEV, ULEV, and ZEV vehicles throughout the NTR and will count
    
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    those vehicles to determine compliance with National LEV requirements. 
    For MY2000, EPA will also issue certificates that will allow 
    manufacturers to sell California-certified TLEVs throughout the NTR and 
    to count those vehicles to determine compliance with National LEV 
    requirements.
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        \6\ ``California-certified vehicles'', as the term is used in 
    this rule, are those vehicles which have received an Executive Order 
    from California and a federal certificate of conformity which allows 
    the sale of such vehicles only in the state of California and other 
    states that have adopted the California motor vehicle emission 
    standards under Section 177 of the Clean Air Act.
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        The harmonization of the federal and California motor vehicle 
    emission requirements have left few differences between National LEV 
    and California-certified TLEV and cleaner vehicles. EPA believes that 
    production and certification of vehicles meeting both federal and 
    California requirements, done currently by some manufacturers, should 
    be much more attractive when the National LEV program is in effect. 
    However, program differences do exist and federal requirements such as 
    the Certification Short Test (CST) and high-altitude requirements 
    remain part of the federal program.7 Using Federal 
    certificates to allow manufacturers to certify and sell MY1999 
    California-certified TLEVs, LEVs, ULEVs, and ZEVs throughout the NTR 
    will give them an additional mechanism to comply with the fleet average 
    NMOG standards by increasing the production and sale of their 
    California-certified vehicles. Manufacturers may still certify and sell 
    National LEV vehicles for MY1999 using the National LEV program 
    requirements, and such vehicles could be sold nationwide. EPA is not 
    allowing sale of California Tier 1 vehicles throughout the NTR because 
    EPA does not believe that certification of vehicles to California Tier 
    1 standards proves that such vehicles meet the Federal Tier 1 tailpipe 
    emission standards and EPA cannot justify replacing Federal Tier 1 
    vehicles with California Tier 1 vehicles in the federal motor vehicle 
    emissions program. EPA has consistently taken this position on 
    California Tier 1 vehicles throughout the development of the National 
    LEV program.
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        \7\ There are different federal and California test procedures 
    for evaporative emissions. Manufacturers generally use the option in 
    California's regulations which allows testing using the federal 
    requirements. EPA expects manufacturers will continue using this 
    option when certifying vehicles for sale in California. The National 
    LEV program requires emission testing using the federal 
    requirements.
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        California-certified TLEVs, LEVs, ULEVs and ZEVs can be sold in the 
    NTR in MY1999 if they receive a federal National LEV certificate. This 
    certificate will state that, for MY1999, a California-certified vehicle 
    sold in the NTR only will be considered a National LEV vehicle and meet 
    all National LEV requirements. EPA believes that the compliance testing 
    done to obtain a California certificate of conformity for these vehicle 
    categories is sufficient to meet the certification requirements for the 
    National LEV program in MY1999. Allowing California certification to 
    substitute for National LEV certification for vehicles sold in the NTR 
    does not mean that EPA is waiving compliance with the Certification 
    Short Test (CST) and high-altitude requirements. However, EPA believes 
    that a vehicle complying with the MY1999 California TLEV, LEV, ULEV, or 
    ZEV emission standards will also most likely meet the Federal Tier 1 
    CST and high-altitude requirements. Currently, Federal Tier 1 vehicles 
    are being certified as meeting the CST and high-altitude requirements 
    and EPA, in its certification review and testing, has not identified 
    any problems manufacturers have had in complying with these two 
    requirements. EPA expects that California-certified TLEVs, LEVs, ULEVs, 
    and ZEVs would also meet the Federal Tier 1 CST and high-altitude 
    certification requirements and is thus willing to allow a degree of 
    uncertainty regarding actual demonstration of compliance with these 
    requirements in MY1999 in order to facilitate the start of the National 
    LEV program for those manufacturers which may find it difficult to 
    certify and sell National LEV vehicles in the NTR. EPA does not believe 
    it is appropriate to waive demonstration with these requirements beyond 
    MY1999 because manufacturers will have had sufficient time to 
    incorporate compliance with the CST and high-altitude requirements into 
    their MY2000 National LEV vehicles. EPA believes there should be 
    minimal adverse environmental impact from substituting California-
    certified TLEVs, LEVs, ULEVs and ZEVs for National LEV vehicles in 
    MY1999.
        Today's Final Rule addresses the issue of National LEV vehicle 
    sales in MY1999 by issuing a Federal National LEV certificate to those 
    vehicles sold in the NTR instead of expanding current policies and 
    allowing the sale of California-certified vehicles throughout the NTR. 
    By granting a Federal certificate to these vehicles, EPA retains its 
    authority to enforce the provisions of the National LEV program. 
    Compliance with many of these provisions, such as compliance with the 
    fleet average NMOG requirements and credit trading, is dependent on 
    meeting conditions associated with the National LEV certificate. EPA is 
    not waiving compliance with the National LEV requirements in the NTR in 
    MY1999. By requiring a federal National LEV certificate for MY1999 
    California-certified vehicles sold in the NTR, this provision ensures 
    that EPA may enforce all of the National LEV regulations applicable to 
    MY1999 vehicles.8 California-certified vehicles receiving a 
    Federal National LEV certificate allowing sale in the NTR may not be 
    sold outside the NTR.
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        \8\ The manufacturers have suggested that EPA address the issue 
    of MY1999 and MY2000 vehicles through expansion of the cross border 
    sales policy, which currently allows sales of vehicles certified to 
    California's emissions standards and other requirements in states 
    contiguous to, or within 50 miles of, California and states that 
    have a program adopted under section 177 in place. See note 49 for 
    further discussion of the cross border sales policy. The approach 
    that EPA is adopting in today's rule is separate from and will have 
    no effect on the cross border sales policy.
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        EPA believes it is also appropriate to issue Federal certificates 
    that will allow manufacturers to sell California-certified TLEVs 
    throughout the NTR in MY2000. As discussed below in sections VIII.E and 
    IX, EPA does not expect manufacturers to produce and sell many TLEVs 
    after MY2000 because other provisions in the National LEV and 
    California LEV programs will provide incentives and requirements which 
    will minimize TLEV production. EPA believes it would be more 
    environmentally beneficial and cost-effective to have manufacturers use 
    their resources to certify and produce cleaner LEVs and ULEVs rather 
    than TLEVs, which will shortly be phased out of production.9 
    Issuing Federal certificates to allow manufacturers to sell California-
    certified TLEVs in the NTR in MY2000 does not mean that more TLEVs will 
    be sold in this region because manufacturers will still need to 
    demonstrate compliance with the fleet average NMOG standard in the NTR 
    in MY2000, and all TLEVs sold in the NTR are to be included in the 
    compliance calculations. Instead, EPA is making the determination that 
    the environmental benefits of issuing Federal certificates allowing the 
    sale of California-certified TLEVs in the NTR in MY2000 outweighs the 
    cost and any environmental detriment associated with manufacturers not 
    completing all of the testing generally required to meet the 
    certification requirements necessary to produce and sell a National LEV 
    TLEV in the NTR in MY2000. EPA is not waiving compliance with any 
    National LEV standards, but is accepting California certification as 
    sufficient to
    
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    demonstrate compliance with TLEV standards for the purpose of 
    certification.
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        \9\ Manufacturers can continue to produce and sell TLEV vehicles 
    after MY2000 under the National LEV and California LEV programs as 
    long as they obtain a National LEV certificate for the TLEVs and 
    meet the applicable fleet average NMOG standards. EPA is not 
    requiring manufacturers to discontinue TLEV production, which 
    remains a manufacturer decision.
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        This special provision regarding the sale of California-certified 
    TLEVs is applicable only in the NTR and only in MY2000. This provision 
    is intended to provide manufacturers with flexibility in meeting the 
    fleet average NMOG standards in the NTR. When the National LEV 
    requirements are effective nationally in MY2001, however, 
    manufacturers' full production efforts will be focused on meeting 
    California and National LEV requirements. If a manufacturer plans to 
    continue producing TLEVs after MY2000, then such vehicles must meet all 
    of the National LEV requirements, including the CST and high-altitude 
    requirements. In meeting the certification requirements for a MY2001 
    National LEV TLEV, manufacturers may carry over any appropriate data 
    from their MY2000.
        EPA is not issuing Federal certificates allowing California-
    certified vehicles to be sold under National LEV outside the NTR in 
    MY1999. There is no justification for allowing such sales and, unlike 
    in the NTR, there is no requirement that manufacturers produce anything 
    but Federal Tier 1 vehicles. If manufacturers wish to generate early 
    reduction credits in the All State Trading Region in MY1999 and MY2000, 
    they must do so using National LEV vehicle sales in that region.
    
    IV. National LEV Will Produce Larger VOC and NOX Emission 
    Reductions in the OTR Compared to OTC State Adopted Section 177 
    Programs
    
        Modeling done in support of the Final Framework Rule showed that 
    the National LEV program would provide greater emission reductions than 
    those from OTC LEV (which is equivalent to state-by-state adoption of 
    the CAL LEV program throughout the OTR). See 62 FR 44757. The SNPRM 
    proposed several changes to modeling assumptions. As proposed, and in 
    light of public comments, EPA has modified some of the assumptions in 
    the modeling, particularly regarding when various programs would start. 
    This modeling supports EPA's conclusion in today's rule that, given 
    current assumptions and best information about future vehicle 
    performance 10 and the migration of people and vehicles, the 
    NOX and VOC emission reductions from National LEV are 
    equivalent to or greater than those from state-by-state adoption of 
    Section 177 Programs throughout the OTR.
    ---------------------------------------------------------------------------
    
        \10\ EPA's National LEV modeling does not incorporate any 
    factors relating to the effect of fuel sulfur levels on the 
    emissions performance of National LEV vehicles, outside of any 
    factors already included in the MOBILE 5a model. Studies being 
    conducted by the auto and oil industries analyzing the impact of 
    sulfur on the emissions performance of LEV vehicles are ongoing. EPA 
    has not attempted to quantify a sulfur impact on National LEV 
    vehicle emissions as part of the equivalency modeling because the 
    studies and associated analyses have not yet been completed. 
    Additionally, any quantifiable impact would apply to both the 
    National LEV and OTC State Section 177 Programs and would not alter 
    any equivalency determination.
    ---------------------------------------------------------------------------
    
        The first set of changes to the modeling relates to the start dates 
    of National LEV and Section 177 Programs. As proposed in the SNPRM, the 
    updated modeling includes a start date of MY1999 (rather than MY1997) 
    for the National LEV program. The updated modeling analysis for the OTC 
    State Section 177 Programs (in the absence of National LEV) also more 
    accurately reflects expected reductions from OTC State Section 177 
    Programs than did the analysis described in the Final Framework Rule. 
    The modeling for that rule assumed that all of the OTC States had 
    Section 177 Programs in effect for MY1999 and later. In reality, only 
    six of the OTC States have adopted programs that could be effective in 
    MY1999 and there is no longer a specific legal requirement for the 
    other states to adopt a Section 177 Program. Thus, EPA's analysis 
    assumes Section 177 Programs will exist only in those OTC States that 
    have adopted a Section 177 Program.11 EPA believes that this 
    realistic assumption is the proper comparison to National LEV since 
    legally, individual state adoption is the only manner in which 
    California vehicles can be required in the Northeast.
    ---------------------------------------------------------------------------
    
        \11\ Start date assumptions for EPA's modeling are MY1999 for 
    the National LEV program in the OTR, MY2001 for the National LEV 
    program nationwide, MY1996 for Section 177 Programs in New York and 
    Massachusetts, MY1998 for a Section 177 Program in Connecticut, and 
    MY1999 for Section 177 Programs in Rhode Island, New Jersey, and 
    Vermont. The dates for state Section 177 Programs reflect the 
    effective dates for current state Section 177 Programs. Maine has 
    taken steps to adopt a Section 177 Program. EPA has included Maine 
    with the other six OTC States that have adopted a Section 177 
    Program, and has given Maine's program a start date of MY2001, 
    recognizing that even though Maine has not yet completed all the 
    steps to make its program go into effect, it has finished most of 
    the actions and is expected to complete its adoption actions in the 
    near future.
    ---------------------------------------------------------------------------
    
        EPA believes its current modeling makes the appropriate assumptions 
    and correctly estimates a realistic level of OTC State Section 177 
    Programs. However, to test its assumptions, EPA also ran as a third 
    case a sensitivity analysis assuming that all of the OTC States adopted 
    Section 177 Programs. For the six OTC States without a Section 177 
    Program in place as of July 1, 1997, EPA assumed that the programs 
    became effective in MY2001, the earliest time a state that had not yet 
    adopted a Section 177 Program could legally enforce such a program, 
    given the two year lead time requirement in section 177 of the Act. 
    This analysis showed that, even with all 13 OTC States having a Section 
    177 Program in place at the earliest possible times, National LEV still 
    provided greater emission reductions in the Northeast.
        EPA has also changed some of its modeling assumptions regarding the 
    status of federal and state motor vehicle programs in MY2005 and later, 
    in part as a result of changes EPA made regarding the duration of 
    National LEV. To the extent possible, EPA has attempted to make these 
    new assumptions, which affect all three cases analyzed by EPA, 
    consistent from one case to the next. Although EPA has made assumptions 
    regarding future regulatory actions, these assumptions in no way limit 
    EPA's options in future regulatory actions, nor do they indicate that 
    EPA has prejudged those future actions.
        In the National LEV case, EPA assumes National LEV will be in place 
    in all OTC States through MY2005, which is the latest model year the 
    program would be considered a compliance alternative in those OTC 
    States which have adopted a Section 177 Program if EPA issues Tier 2 
    standards at least as stringent as National LEV standards by December 
    15, 2000. In MY2006, the seven OTC States with Section 177 Programs 
    already adopted are assumed, for modeling purposes, to have those 
    programs go into effect.12 The model assumes the rest of the 
    country will have a Tier 2 program which, for modeling purposes, is 
    considered to be equivalent to the National LEV program.
    ---------------------------------------------------------------------------
    
        \12\ Under the National LEV program duration requirements (see 
    section V.A) the OTC States are only committed to have the Naitonal 
    LEV program as a compliance alternative to a Section 177 Program 
    until MY2006.
    ---------------------------------------------------------------------------
    
        The two modeling cases which analyze emission reductions without 
    the National LEV program assume, for modeling purposes, that a Tier 2 
    program equivalent to National LEV would go into effect in MY2005. One 
    case assumes Tier 1 standards in effect until then in those states that 
    have not adopted a Section 177 Program. The other case assumes Tier 1 
    standards in effect until then in all states outside the OTR (except 
    California). The MY2005 start date for Tier 2 was chosen as a 
    reasonable estimation for modeling purposes, given the National LEV 
    program deadline of December 15, 2000
    
    [[Page 931]]
    
    date for EPA action on the Tier 2 program (which has been incorporated 
    into the modeling assumption for the National LEV case) in conjunction 
    with lead time for manufacturers to prepare to comply with Tier 2 
    standards. The MY2005 start date for Tier 2 also represents a 
    reasonable midpoint, for modeling purposes, between the MY2004 and 
    MY2006 deadlines included in the MOUs. EPA is not precluded by the 
    National LEV program from implementing a Tier 2 program in MY2004 if it 
    determines Tier 2 standards should apply in that model year.
        EPA's modeling shows that National LEV would achieve greater 
    emission reductions in the OTR than individual OTC State Section 177 
    Programs. EPA's conclusion would not change even if all OTC States were 
    to adopt Section 177 Programs. The emission levels are listed in the 
    Table 1 below. The modeling is based on National LEV starting in MY1999 
    in the OTR and MY2001 in the rest of the country, with Federal Tier 1 
    vehicles making up the federal non-NLEV fleet. EPA did not include 
    existing OTC State zero emission vehicle (ZEV) sales mandates in either 
    of its modeling runs since these mandates are not affected by the 
    National LEV rule. ZEV sales mandates would thus have similar effects 
    on emission levels in both modeling cases and would not affect the 
    relative emissions benefits of National LEV compared to those of OTC 
    State Section 177 Programs.
        All other assumptions used in the modeling included in the Final 
    Framework Rule, the SNPRM, and today's rule remain consistent with 
    those used throughout the National LEV process. EPA believes it is 
    important to keep consistent assumptions to provide a comparison 
    between benefits from the National LEV program and state Section 177 
    Programs in the OTR.
    
    Table 1.--Ozone Season Weekday Emissions for Highway Vehicles in the OTR
                                   (tons/day)                               
    ------------------------------------------------------------------------
                                                       OTC State   National 
                 Year                   Pollutant       CAL LEV       LEV   
    ------------------------------------------------------------------------
    2005..........................  NMOG............       1,573       1,499
                                    NOX.............       2,526       2,403
    2007..........................  NMOG............       1,480       1,366
                                    NOX.............       2,427       2,226
    2015..........................  NMOG............       1,386       1,148
                                    NOX.............       2,367       1,899
    ------------------------------------------------------------------------
    
    V. OTC State Commitments
    
        This section describes the substance of the OTC States' commitments 
    to National LEV. It also addresses the process (including timing) by 
    which OTC States and auto manufacturers would commit to National LEV 
    and by which EPA would find the program in effect.
    
    A. Duration of OTC State Commitments and of the National LEV Program
    
        Today's Final Rule takes a different approach to the duration of 
    the OTC State commitments than was proposed in the SNPRM. As discussed 
    in the SNPRM, the MOUs initialed by the OTC States and the auto 
    manufacturers both had the duration of the National LEV program (and 
    hence the duration of both the OTC States' and the auto manufacturers' 
    commitments) depend on whether, by January 1, 2001, EPA issued 
    mandatory new motor vehicle standards (``Tier 2 standards'') that were 
    at least as stringent as National LEV and that would go into effect no 
    later than MY2006. If EPA issued the specified standards by that time, 
    the auto manufacturers would stay in National LEV until the Tier 2 
    standards became effective, and the OTC States would not enforce their 
    own state Section 177 Programs until MY2006. If EPA did not issue the 
    specified regulations by that time, then National LEV would end with 
    MY2003 and, starting in MY2004, in any state where California or OTC 
    LEV standards were not in place, the applicable standards for 
    manufacturers would revert back to the federal Tier 1 standards. 
    Although EPA rejected the MOU approach in the Final Framework Rule, EPA 
    has reconsidered the issue based on the comments submitted by the OTC 
    States and the auto manufacturers, and has decided to adopt the 
    approach agreed upon by the OTC States and the auto manufacturers. 
    Thus, under 40 CFR 1701(c) and 1705(e) and (g) of today's rule, the 
    commitments of the OTC States and the auto manufacturers to National 
    LEV last until MY2006, unless EPA fails to promulgate Tier 2 standards 
    at least as stringent as National LEV on or before December 15, 2000, 
    in which case the commitments last until MY2004.13
    ---------------------------------------------------------------------------
    
        \13\ If EPA promulgates Tier 2 standards at least as stringent 
    as National LEV on or before December 15, 2000, and those standards 
    are in effect in MY2004 or MY2005, the manufacturers will become 
    subject to those standards upon their effective date, but the OTC 
    States' commitments to National LEV will not end until MY2006.
    ---------------------------------------------------------------------------
    
        EPA had proposed in the SNPRM that the OTC States would commit to 
    the National LEV program until MY2006. This meant that the OTC States 
    would have committed to accept manufacturers' compliance with National 
    LEV (or equally or more stringent mandatory federal standards) as an 
    alternative to compliance with a state Section 177 Program through 
    MY2005. The length of the auto manufacturers' commitment was set in the 
    Final Framework Rule. Under that rule, manufacturers that opted into 
    the program would be bound to comply with National LEV until the first 
    model year for which manufacturers would be subject to a mandatory 
    federal tailpipe emissions program at least as stringent as the 
    National LEV program with respect to NMOG, NOX and carbon 
    monoxide (CO) exhaust emissions (``Tier 2 standards''). Under section 
    202(b)(1)(C) of the Clean Air Act, EPA could not mandate such standards 
    prior to MY2004. Thus, the manufacturers' commitment to National LEV 
    was to last at least until MY2004 and could last longer.
        In the Final Framework Rule, EPA did not accept the MOU provisions 
    for setting the duration of the National LEV program. EPA rejected the 
    MOU provisions because it was concerned about setting up a program that 
    would have the country take a step backward environmentally if the 
    Agency failed to act by a specified deadline. EPA has reconsidered its 
    views.
        The main reason for changing the program duration is the comments 
    received from the OTC States and the auto industry. The auto industry 
    made it clear that stability until MY2006 is very important, and the 
    OTC States were clear that they were uncomfortable with committing to 
    allow National LEV as a compliance alternative until MY2006 if EPA were 
    not to issue Tier 2 standards by January 1, 2001. The OTC States' 
    primary reason for wanting to tie the duration of the program to 
    promulgation of Tier 2 standards is that they need to know sooner 
    rather than later how the Tier 2 standards and the California LEV 
    program compare so that they can determine whether they will need to 
    have an enforceable California LEV program to meet their air quality 
    goals. EPA believes that an orderly air quality planning process is 
    important and believes that the OTC States are in the best position to 
    know what would be most useful to them in that process. EPA has decided 
    to defer to the OTC States' judgment on this matter.
        Having decided that the length of the OTC States' commitment should 
    depend on whether EPA issues Tier 2 standards, EPA believes it would be 
    unfair not to have the manufacturers' commitment also depend on whether 
    EPA issues Tier 2 standards. First, that is the agreement that was 
    reached by the OTC States and the manufacturers. It would be unfair to 
    hold the manufacturers in for longer than they had agreed to in the MOU
    
    [[Page 932]]
    
    while giving the OTC States the benefit of the agreement. Second, an 
    unintended consequence of EPA's decision not to tie the end of National 
    LEV to EPA's issuance of the Tier 2 regulations is that several groups 
    interpreted that as a signal that EPA was not intending to perform its 
    statutory duty under CAA section 202(i)(3) to evaluate the need for, 
    technological feasibility of, and cost effectiveness of new standards, 
    and to issue new standards if warranted. EPA has every intention of 
    meeting its statutory obligations under the CAA and does not want to 
    send a contrary message. Third, EPA now believes that if National LEV 
    comes into effect and manufacturers change all their manufacturing 
    facilities over to build LEV technology, it is highly unlikely that 
    they would actually change the technology back to Tier 1. A combination 
    of the cost of changing back to old technology and adverse publicity 
    from selling ``dirty'' cars probably should be sufficient incentive to 
    keep manufacturers using LEV technology. One manufacturer's decision, 
    announced this summer, to sell LEV technology (albeit certified at Tier 
    1 levels) nationally and various marketing campaigns touting clean cars 
    are evidence that ``clean'' cars can be used as a selling point. Thus, 
    today's Final Rule modifies the duration of the manufacturers' 
    commitment to National LEV.
    
    B. Timing of OTC State Commitments, Manufacturer Opt-Ins, and EPA 
    Finding That National LEV Is in Effect
    
        EPA is establishing a process and deadlines for the OTC States and 
    the manufacturers to opt into the National LEV program and for EPA to 
    find the program in effect. The process and timing are unchanged from 
    EPA's proposal in the SNPRM. Because National LEV needs to be in place 
    as soon as possible to ensure that it is available for MY1999, 40 CFR 
    86.1706 sets the following deadlines based on the date of signature of 
    this Final Rule.14 Seventy-five days from signature of this 
    FRM, EPA must determine whether the National LEV program is in effect 
    (see section V.C.3 below for the criteria for finding National LEV in 
    effect). This finding will be based on the OTC States' initial opt-in 
    packages from their Governors and state environmental commissioners or 
    secretaries (discussed below in section V.C) that were submitted no 
    later than 45 days from the date of signature of this rule and on the 
    manufacturers' opt-ins submitted no later than 60 days from signature 
    of this rule.15 If EPA finds National LEV in effect, all 
    parties are bound by their commitments to the program. While any party 
    that misses its deadline for opt-in is not barred from submitting a 
    late opt-in, EPA is only required to consider timely opt-ins in 
    determining whether National LEV is in effect. Moreover, given the very 
    short timeframe for the opt-in process and the fact that some parties 
    may be reluctant to opt in before they know whether others will do so, 
    a late opt-in is likely to jeopardize the start-up of the program.
    ---------------------------------------------------------------------------
    
        \14\ EPA will provide directly affected parties actual notice 
    and make copies of the FRM available within a week of signature. 
    Upon request, copies of the FRM will also be made available to other 
    parties in the same timeframe.
        \15\ If one of these deadlines would otherwise fall on a weekend 
    or federal holiday, the FRM sets the deadline as the next business 
    day.
    ---------------------------------------------------------------------------
    
        As proposed, after the initial opt-ins and an EPA finding that the 
    program is in effect, the OTC States will generally have one year from 
    the date of the in-effect finding to submit the final portion of their 
    opt-ins, which is a SIP revision committing the state to the National 
    LEV program and allowing manufacturers to comply with National LEV as 
    an alternative to a state Section 177 Program, as described in more 
    detail in section V.C.4 below. For a few states, specifically Delaware, 
    New Hampshire, Virginia and the District of Columbia, the deadline is 
    eighteen months, rather than one year, from the date of the in-effect 
    finding. These states have particular circumstances related to their 
    state rulemaking processes that make a one-year deadline unrealistic. 
    If a state were to miss its deadline for submission of its SIP revision 
    committing to National LEV, the manufacturers would have the 
    opportunity to opt out of the program, as discussed further in section 
    VI.
    
    C. OTC State Commitments, Manufacturer Opt-Ins, and EPA Finding That 
    National LEV Is in Effect
    
        This section describes the process for the OTC States and the 
    manufacturers to commit to the National LEV program and for EPA to find 
    the program in effect. This includes how the OTC States will commit to 
    the program, the elements of their commitments, the permissible 
    conditions on OTC State and manufacturer opt-ins, and the criteria that 
    EPA will use to find the program in effect.
    1. Initial Opt-In by OTC States
        As proposed, the OTC States will commit to National LEV in two 
    steps, the first of which is an opt-in package from each state's 
    Governor and environmental commissioner, indicating the OTC State's 
    intent to opt into National LEV. The second step is a SIP revision 
    incorporating the OTC States' commitment to National LEV in state 
    regulations, which EPA will approve into the federally-enforceable SIP.
        To opt into National LEV, within 45 days of signature of this rule, 
    the Governor (or Mayor, in the District of Columbia) will submit to EPA 
    an executive order or a letter committing the OTC State to the National 
    LEV program. As specified in 40 CFR 86.1705(e), the executive order or 
    letter will contain three main elements. First, it will state that its 
    purpose is to opt the state into National LEV. Second, it will state 
    that the Governor is forwarding a letter signed by the head of the 
    state environmental agency (or other appropriate agency or department), 
    which specifies the details of the state's commitment to the National 
    LEV program. Third, it will state that the Governor has directed the 
    head of the state environmental agency to take the necessary steps to 
    adopt regulations and submit a SIP revision committing the state to 
    National LEV in accordance with the requirements of the National LEV 
    regulations. In addition, OTC States with existing ZEV mandates 
    16 may add language confirming that the opt-in will not 
    affect the state's requirements pertaining to ZEVs.
    ---------------------------------------------------------------------------
    
        \16\ ZEV mandates are those state regulations or other laws that 
    impose (or purport to impose) obligations on auto manufacturers to 
    produce or sell a certain number or percentage of ZEVs. Any OTC 
    State with a ZEV mandate that was adopted prior to the signature 
    date of this rule is considered a state with an existing ZEV 
    mandate.
    ---------------------------------------------------------------------------
    
        The Governor's executive order or letter will enclose a letter 
    signed by the state environmental commissioner or secretary of the 
    appropriate state department (``commissioner's letter''), which 
    specifies the details of the state's commitment to National LEV. 
    Alternatively, if an OTC State has proposed regulations meeting the 
    requirements for a SIP revision specified below, the state may 
    substitute the proposed regulations for the portions of the 
    commissioner's letter for which they are duplicative. In that case, the 
    Governor will send to EPA the Governor's executive order or letter, the 
    proposed regulations, and a letter from the commissioner, which will 
    contain the elements specified below that were not included in the 
    proposed regulations.
        As proposed, the commissioner's letter will include the following 
    elements. First, it will indicate that National LEV would achieve 
    reductions of VOC and NOx emissions equivalent to or greater 
    than the reductions that
    
    [[Page 933]]
    
    would be achieved through state adopted Section 177 Programs in the 
    OTR. Second, it will indicate that the state intends National LEV to be 
    the state's new motor vehicle emissions control program. Third, it will 
    state that for the duration of the state's participation in National 
    LEV, the state will accept National LEV or mandatory federal standards 
    of at least equivalent stringency as a compliance alternative to any 
    state Section 177 Program. As EPA is defining it here, a state Section 
    177 Program is any regulation or other law, except a ZEV mandate, 
    adopted by an OTC State in accordance with section 177 and which is 
    applicable to passenger cars, light-duty trucks up through 6,000 pounds 
    GVWR, and/or medium-duty vehicles from 6,001 to 14,000 pounds GVWR if 
    designed to operate on gasoline, as these vehicle categories are 
    defined under the California regulations. (This commitment would not 
    restrict states from adopting and implementing requirements under 
    section 177 for heavy-duty trucks and engines and diesel-powered 
    vehicles between 6,001 and 14,000 pounds GVWR.) The letter will further 
    state that the state's participation in National LEV extends until 
    MY2006, except as provided in the National LEV regulations' provisions 
    addressing the duration of the OTC State commitments and state 
    offramps. However, in a change from the proposal (discussed in section 
    V.A above), the letter will add that if no later than December 15, 
    2000, EPA does not issue mandatory new motor vehicle standards (``Tier 
    2 standards'') at least as stringent as National LEV and that would go 
    into effect no later than MY2006, then the state's participation in 
    National LEV extends only until MY2004, except as provided in the 
    National LEV provisions for state offramps. The offramps allow the OTC 
    States to exit National LEV if an auto manufacturer were to decide to 
    exit the program. OTC States without existing ZEV mandates would add a 
    statement that the state accepts National LEV as a compliance 
    alternative to any ZEV mandates. OTC States with existing ZEV mandates 
    would add a statement that their acceptance of National LEV as a 
    compliance alternative for state Section 177 Programs does not include 
    or have any effect on the OTC State's ZEV mandates.
        Fourth, the commissioner's letter will include both an explicit 
    recognition that the manufacturers are opting into National LEV in 
    reliance on the OTC States' opt-ins, and a recognition that the 
    commitments in the initial OTC State opt-in package have not yet gone 
    through the state rulemaking process to be incorporated into state 
    regulations, so they do not yet have the force of law; in addition, the 
    letter will recognize that the state's executive branch must comply 
    with any laws passed by the state legislature that might affect the 
    state's commitment. The manufacturers' comments opposed inclusion of 
    the proposed language stating that the provisions of the state's letter 
    would not have the force of law until adopted as state regulations and 
    that the state must comply with any state legislation that might affect 
    the commitment. The manufacturers expressed concern that these 
    provisions undermine the states' commitments. However, a number of 
    states have indicated to EPA that they could not make a commitment of 
    this nature before completing the states' rulemaking processes, unless 
    they included language to clarify the legal nature of the initial state 
    commitment. In light of the fact that the states will not have 
    sufficient time to complete a rulemaking before opting into National 
    LEV, EPA believes it is appropriate for the opt-in provisions to allow 
    the states to include the language that EPA proposed. EPA does not 
    believe this language will in any way affect the degree to which the 
    states are legally or politically bound by their initial opt-ins.
        Fifth, the commissioner's letter will include an acknowledgment 
    that, if a manufacturer were to opt out of National LEV pursuant to the 
    opt-out provisions in the National LEV regulations, the transition from 
    the National LEV requirements to any state Section 177 Program or ZEV 
    mandate would be governed by the National LEV regulations. Sixth, 
    similar to the manufacturers' opt-in letters, the commissioner's letter 
    will state that the state supports the legitimacy of the National LEV 
    program and EPA's authority to promulgate the National LEV regulations.
        The OTC States have indicated that they support certain commitments 
    regarding ZEV mandates by including those provisions in the MOU voted 
    on by the OTC and initialed by the OTC pursuant to the vote. Consistent 
    with the provisions in the MOU initialled by the OTC, for states 
    without existing ZEV mandates, the commissioner's letter will state 
    that the state intends to forbear from adopting a ZEV mandate effective 
    during the period of the state's participation in National LEV. In this 
    rule, EPA is defining an existing ZEV mandate as a ZEV mandate adopted 
    by an OTC State prior to the signature date of this rule. The 
    manufacturers commented that the states should commit that they will 
    forbear from adopting ZEV mandates, rather than only stating their 
    intent to forbear from such action. However, the OTC States have 
    expressed their concern about attempting to bind future legislatures in 
    this way and have consistently indicated that such language would not 
    be acceptable to them. As it stated in the NPRM (60 FR 52740) and SNPRM 
    (62 FR 44760) for National LEV, EPA believes that the decision 
    regarding adoption of ZEV mandates by OTC States must be left up to 
    each individual OTC State, to the extent permitted under section 177. 
    Thus, EPA believes it is appropriate to include the language supported 
    by the OTC States here. If any OTC State would prefer to commit that it 
    will forbear from adopting a ZEV mandate, it may make that commitment 
    in its opt-in.
        The commissioner's letter from OTC States that have not adopted a 
    Section 177 Program at the time of signature of this rule need not 
    include a commitment or statement of intent to forbear from adopting a 
    Section 177 Program effective during the period of the state's 
    commitment to National LEV, as long as the state commits to accept 
    National LEV as a compliance alternative to any such program. EPA took 
    comment on such a provision in the SNPRM (60 FR 44760) because the 
    draft MOU initialed by the manufacturers included a statement that 
    certain OTC States would forbear from adopting such ``backstop'' 
    Section 177 Programs,17 while the draft MOU initialed by the 
    OTC States did not include any statement regarding adoption of such 
    backstop programs. The comments on the SNPRM from the manufacturers and 
    the OTC States reiterate these positions. In particular, the 
    manufacturers stated that allowing all OTC States to adopt backstop 
    Section 177 Programs would destabilize the National LEV program. The 
    manufacturers are concerned that the prospect of a return to Tier 1 
    vehicles in at least some OTC States if a state violates its commitment 
    to National LEV is a powerful incentive for states to abide by their 
    commitments that would be lost with widespread backstops. EPA agrees 
    that the absence of backstops in some OTC States would contribute to 
    program stability in the manner that the manufacturers suggest. 
    However, EPA does not believe it is necessary to bar states from 
    adopting backstops to provide this source of stability, as it is highly 
    unlikely that all or nearly all OTC States will adopt backstop Section
    
    [[Page 934]]
    
    177 Programs effective during the relevant time period and it is 
    unlikely that more than a few (if any) states outside the OTR would 
    adopt backstop programs. In addition, the OTC States said that they are 
    unwilling to commit not to adopt backstop programs. Thus, EPA does not 
    believe it is appropriate to include a provision committing not to 
    adopt a backstop Section 177 Program as an element of the OTC States' 
    commitments to National LEV.
    ---------------------------------------------------------------------------
    
        \17\  ``Backstop'' Section 177 Programs are programs that allow 
    National LEV as a compliance alternative to the Section 177 Program 
    requirements.
    ---------------------------------------------------------------------------
    
        Finally, the commissioner's letter may include a statement that the 
    state's opt-in to National LEV is conditioned on all of the motor 
    vehicle manufacturers listed in the National LEV regulations opting 
    into National LEV pursuant to the National LEV regulations and on EPA 
    finding National LEV to be in effect. However, as with the 
    manufacturers' opt-ins, no conditions other than those specified in the 
    regulations may be placed on any of the state opt-in instruments (the 
    Governor's executive order or letter, the commissioner's letter, or the 
    SIP revision).
        The OTC States commented that the regulations should allow an OTC 
    State to condition its opt-in on signature of an acceptable independent 
    agreement with the manufacturers to promote advanced technology 
    vehicles (ATVs). An agreement on ATVs has not been contemplated to be 
    part of the National LEV regulations, but has been discussed as a 
    separate agreement between the OTC States and the auto manufacturers. 
    At one point, the OTC States and manufacturers reached consensus on the 
    substance and language of an ATV agreement, which was to establish 
    mechanisms for sharing information not only about advanced technology 
    vehicles and alternative fuels, but also about the incentives and 
    infrastructure development necessary to make new technology feasible. 
    This agreement was attached to the MOUs initialed by the manufacturers' 
    organizations and the OTC. EPA supports this agreement, but does not 
    believe that opt-ins to National LEV need be conditioned on final 
    signature of the agreement. If the OTC States and manufacturers want to 
    finalize the agreement (contingent on National LEV coming into effect), 
    they can and should do so before the due date for the OTC State opt-
    ins. There is no reason to delay finalizing the ATV agreement until 
    after the OTC States have opted in. Thus, although OTC States can 
    refuse to opt in if there is no ATV agreement, they cannot send in an 
    opt-in which is conditioned on an ATV agreement being signed.
        In the regulations at 40 CFR 86.1705 (e) and (g), EPA is providing 
    specific language for each element of the OTC States' opt-ins to be 
    included in the Governor's executive order or letter, the 
    commissioner's letter, and the SIP revision. Although it is somewhat 
    unusual for EPA to identify specific language for state submissions, 
    EPA believes that this is an appropriate situation to do so. Because 
    the OTC States and manufacturers are signing up for a voluntary program 
    and are unlikely to sign an MOU, using specified language will ensure 
    that they sign up to the same program. Otherwise, the opt-ins might not 
    represent agreement on the terms and conditions of the voluntary 
    National LEV program. However, in a slight modification to the proposed 
    approach, the final regulations provide that for the Governors' and 
    commissioners' letters, a state may opt into National LEV using the 
    specified language or ``substantively identical language.'' Because the 
    first step of the OTC States' commitments to National LEV will occur 
    before the states can complete their rulemaking processes, EPA 
    recognizes that some slight wording variations may be necessary for 
    individual states. For the subsequent SIP revisions, however, states 
    will have the opportunity to go through notice-and-comment rulemaking 
    on the specified language. Moreover, because the deadline for 
    manufacturers to opt into National LEV is after the deadline for the 
    OTC States, the manufacturers will have the opportunity to assess the 
    adequacy of any state opt-ins that vary from the specified language. If 
    the variation is sufficient to undercut the assurance that the state 
    will carry out its commitment to National LEV, the manufacturers may 
    decide not to opt into National LEV. However, the manufacturers would 
    not have an opportunity to assess beforehand any variations in the SIP 
    revision language submitted by the states. Prior to opt-in, the 
    manufacturers can evaluate the SIP revision language specified in the 
    regulations to determine whether they view the language as an adequate 
    expression of the states' commitments to National LEV, but they would 
    not have the opportunity to evaluate any variations on that specified 
    language. The importance of ensuring that all parties know what they 
    are signing up to at the time of opt-in further supports the 
    requirement for states to use exact language for the SIP revisions.
        Despite the possibility that states may opt into National LEV even 
    with slight non-substantive variations in the language of the 
    Governor's letter or commissioner's letter, EPA emphasizes that any 
    differences must be minor and non-substantive. Because the Governor's 
    letter and commissioner's letter are political as well as legal 
    documents, even language without direct legal effect is important to 
    bind the state politically to carry out its commitment. Hence, EPA and/
    or the manufacturers are likely to view variations in such language as 
    substantive changes to the state's commitment. To avoid invalid opt-
    ins, EPA expects most, if not all, OTC States to use the specified 
    language unmodified. Only a few OTC States commented that they might 
    need to make unspecified changes in the language. In addition, as 
    discussed further below, EPA will find National LEV in effect without 
    providing for additional notice-and-comment on whether the conditions 
    are met for finding National LEV in effect. EPA may proceed without 
    additional rulemaking or other process if the Agency's in-effect 
    finding is essentially a nondiscretionary action based on clear factual 
    determinations. If EPA must use its discretion to determine whether a 
    state has adequately committed to National LEV, that might require 
    further rulemaking and substantially delay implementation of the 
    program. However, if the OTC States use the language specified in the 
    regulations, which EPA has determined to be adequate through a notice-
    and-comment rulemaking, EPA will be able to find National LEV in effect 
    on that basis.
        EPA also recognizes that a state may wish to include background 
    information, especially in the Governor's executive order or letter. 
    This is permissible under today's regulations, providing that the 
    additional information does not add conditions to the state's opt-in.
    2. Manufacturer Opt-Ins
        As proposed, the motor vehicle manufacturers' opt-ins to National 
    LEV are due within 60 days from signature of this Final Rule. As 
    provided in the Final Framework Rule, a manufacturer will opt into 
    National LEV by submitting a written notification signed by the Vice 
    President for Environmental Affairs (or a company official of at least 
    equivalent authority who is authorized to bind the company to the 
    National LEV program) that unambiguously and unconditionally states 
    that the manufacturer is opting into the program, subject only to 
    conditions expressly contemplated by the regulations. See 40 CFR 
    86.1705(c)(2). The only permissible conditions on a manufacturer's opt-
    in notification would be that the OTC States or the auto manufacturers 
    specified by the manufacturer opt into National LEV pursuant to the 
    National
    
    [[Page 935]]
    
    LEV regulations and that EPA find the program to be in effect. These 
    conditions parallel the permissible conditions described above for the 
    OTC States' opt-ins.
        One commenter voiced a concern that the opt-in language that would 
    commit the manufacturers ``not to seek to certify any vehicle except in 
    compliance with the regulations in subpart R'' would prevent 
    manufacturers from certifying heavy-duty vehicles. The statement would 
    not have that effect. Heavy-duty vehicles are not covered by the 
    National LEV program, so they would not need to be (and could not be) 
    certified under the National LEV regulations. Similarly, this opt-in 
    language would not preclude manufacturers from seeking to certify a 
    vehicle for sale only in California and states that have the California 
    program in effect. The opt-in language also would not commit 
    manufacturers to obtain National LEV certificates for vehicles sold 
    outside the United States.
    3. EPA Finding That National LEV Is In Effect
        The OTC States' and the auto manufacturers' opt-ins will become 
    effective upon EPA's receipt of the opt-in notification or, if the opt-
    in is conditioned, upon the satisfaction of that condition. As provided 
    in 40 CFR 86.1706, EPA will find National LEV in effect if each of the 
    listed manufacturers submits an opt-in notification that complies with 
    the requirements for opt-ins, each of the opt-in notifications 
    submitted by an OTC State complies with the requirements for opt-ins, 
    and any conditions placed upon any of the opt-ins are satisfied. Thus, 
    if all the parties that opted into National LEV agree to participate in 
    the program, even if fewer than all OTC States opt into National LEV, 
    EPA will find the program in effect. EPA believes that National LEV 
    should be a national program--effective in all states but California. 
    This would provide the OTR with emissions reductions greater than what 
    could be achieved without National LEV and would simplify distribution 
    and other aspects of the sale of motor vehicles. Moreover, the 
    manufacturers have stated that they are not willing to opt into 
    National LEV unless each and every OTC State opts into National LEV. 
    However, if the OTC States and auto manufacturers are willing to 
    participate in a National LEV program even if all OTC States do not opt 
    in, EPA will not stand in the way of National LEV going into effect. By 
    allowing each of the parties in National LEV to condition their 
    agreement to opt in on specified other parties opting in, EPA is 
    leaving it up to each of the parties to decide what is an acceptable 
    basis for its own participation. EPA expects that each motor vehicle 
    manufacturer and each OTC State will carefully evaluate the National 
    LEV program as a whole and make the choice as to whether and under what 
    conditions it chooses to participate.
        Once all conditions on opt-ins are satisfied, the manufacturers 
    will be subject to the National LEV requirements for new motor vehicles 
    for the duration of the program, and the OTC States that opt in will be 
    committed to participate in the National LEV program for the duration 
    of their commitments, as discussed above in section V.A.
        While the OTC States' SIP revisions are a necessary component of 
    their commitments to National LEV, EPA will make the finding as to 
    whether National LEV is in effect and National LEV will begin before 
    the OTC States' SIP revisions are due. Through an executive order or 
    letter, the Governor of each state will have opted into National LEV 
    and started the process for submission of an approvable SIP revision. 
    Also, as discussed further below, an OTC State's failure to submit the 
    SIP revision within the time provided for submission would give 
    manufacturers an opportunity to opt out of the National LEV program. 
    See Sec. VI.A.2; 40 CFR 86.1707(f). Together, this high level directive 
    for action and the consequences of a failure to conclude the action 
    provide substantial assurance that the OTC States will submit their SIP 
    revisions within the specified time.
        EPA will publish the finding that National LEV is in effect in the 
    Federal Register, but the Agency will not go through additional 
    rulemaking to make this determination. In the Final Framework Rule, EPA 
    stated that further Agency rulemaking to find National LEV in effect 
    would be unnecessary because EPA would establish the criteria for the 
    finding through notice-and-comment rulemaking, and EPA's finding that 
    the criteria are satisfied would be an easily verified objective 
    determination. See 62 FR 31226 (June 6, 1997). The public has had full 
    opportunity to comment on the adequacy of the elements of the 
    manufacturers' and OTC States' opt-ins. Thus, EPA will find that 
    National LEV is in effect without conducting further rulemaking if the 
    Agency determines that each of the listed manufacturers has submitted 
    an opt-in notification that includes the specified elements in approved 
    language without qualifications, each of the opt-in notifications 
    submitted by an OTC State includes the specified elements in specified 
    or substantively identical language without qualifications, and any 
    conditions placed upon any of the opt-ins have been satisfied.
    4. SIP Revisions
        Within one year (eighteen months for a few specified states, as 
    discussed above in section V.B) of the date set for EPA's finding that 
    National LEV is in effect, the OTC States will complete the second 
    phase of their commitments to National LEV by submitting SIP revisions 
    to EPA incorporating their commitments (``National LEV SIP 
    revisions''). As proposed and specified in 40 CFR 86.1705(g), the SIP 
    revisions will contain the following elements incorporated in 
    enforceable state regulations.
        The first regulatory provision will commit that, for the duration 
    of the state's commitment to National LEV, the manufacturers may comply 
    with National LEV or mandatory federal standards of at least equivalent 
    stringency as a compliance alternative to any state Section 177 Program 
    (which is any regulation or other law, except a ZEV mandate, adopted by 
    an OTC State in accordance with section 177 and which is applicable to 
    passenger cars, light-duty trucks up through 6,000 pounds GVWR, and 
    medium-duty vehicles from 6,001 to 14,000 pounds GVWR if designed to 
    operate on gasoline, as these vehicle categories are defined under the 
    California regulations).18 This provision would not restrict 
    states from adopting and implementing requirements under section 177 
    for heavy-duty trucks and engines and diesel-powered vehicles between 
    6,001 and 14,000 pounds GVWR. The regulations will also commit the 
    state to participate in National LEV until MY2006, except as provided 
    in the National LEV regulatory provisions for the duration of the OTC 
    State commitments, including provisions for state offramps. However, as 
    discussed in section V.A above, the regulations will also provide that 
    if, no later than December 15, 2000, EPA has not issued mandatory new 
    motor vehicle standards (``Tier 2 standards'') at least as stringent as 
    National LEV that would go into effect no later than MY2006, then the 
    state is committed to participate in National LEV only until MY2004, 
    except as provided in the National LEV provisions for state offramps. 
    States that do not have an existing ZEV mandate (see n. 16 above)
    
    [[Page 936]]
    
    will additionally provide that manufacturers may comply with National 
    LEV as a compliance alternative to any ZEV mandates for the duration of 
    the state's commitment to National LEV.
    ---------------------------------------------------------------------------
    
        \18\ OTC States that had Section 177 Programs at the time of 
    opt-in would need to modify their existing regulations in accordance 
    with this provision.
    ---------------------------------------------------------------------------
    
        The second element of the state regulations will explicitly 
    acknowledge that, if a manufacturer were to opt out of National LEV 
    pursuant to the opt-out provisions in the National LEV regulations, the 
    transition from the National LEV requirements to any state Section 177 
    Program or ZEV mandate (for states without existing ZEV mandates) would 
    be governed by the National LEV regulations, thereby incorporating 
    these National LEV provisions by reference into state law.
        The SIP submission to EPA will include state regulations containing 
    the elements discussed above, and a transmittal letter or similar 
    document from the state commissioner forwarding those regulations. As 
    proposed, four additional elements of the SIP commitment must be 
    included either in the transmittal letter or the state regulations. 
    First, the state will commit to support National LEV as an acceptable 
    alternative to state Section 177 Programs for the duration of the 
    state's commitment to National LEV. Second, the state would recognize 
    that its commitment to National LEV is necessary to ensure that 
    National LEV remain in effect. Third, the state will state that it is 
    submitting the SIP revision to EPA in accordance with the National LEV 
    regulations. Fourth, each OTC State without an existing ZEV mandate 
    (see n. 16 above) will state that, for the duration of the state's 
    commitment to National LEV, the state intends to forbear from adopting 
    a ZEV mandate effective during the period of the state's participation 
    in National LEV. See section V.C.1 above for further discussion of OTC 
    State commitments relating to ZEV mandates. As discussed in section 
    V.C.1 above, OTC States that had not adopted a Section 177 Program at 
    the time of signature of this rule would not need to commit not to 
    adopt backstop Section 177 Programs.
        EPA will be able to find that an OTC States' SIP submission meets 
    the National LEV SIP requirements and to approve it into the SIP 
    without further rulemaking as long as the submission both includes the 
    language specified in the regulations without additional conditions and 
    meets the CAA requirements for approvable SIP submissions. In the 
    SNPRM, EPA provided full opportunity for public comment on the language 
    that the states would use in their SIP revisions. Today's rule 
    finalizes that language with a few modifications arising from the 
    public comments. Thus, in reviewing such a SIP submittal, EPA will only 
    have to determine whether the submittal includes the specified language 
    without additional conditions, and whether it meets the statutory 
    criteria for approvable SIP submissions, as laid out in sections 
    110(a)(2) and 110(l) of the CAA. Section 110(a)(2), in relevant part, 
    specifies that the state must have provided public notice and a hearing 
    on the SIP provisions and the submission must provide necessary 
    assurances that the state will have adequate personnel, funding and 
    authority under state law to carry out the provisions. Section 110(l) 
    (discussed in more detail below) provides that SIP revisions must not 
    interfere with attainment or any other applicable requirement.
        In this case, these requirements for EPA's approval are easily 
    verified objective criteria. They leave EPA little discretion in 
    deciding whether a state submission meets the requirements for a 
    National LEV SIP revision, and consequently remove any benefits to be 
    derived from conducting notice-and-comment rulemaking on each approval. 
    Determining whether the language of the SIP submittal tracks the 
    language provided in the final regulations and whether the state has 
    substantively qualified or conditioned that language through 
    modifications or additions is a straightforward, essentially 
    ministerial task. This is also true for assessing whether the state has 
    provided notice and a public hearing on the SIP submission. Because 
    National LEV is a federal program, the state needs no personnel or 
    funding to carry it out, so there is nothing related to the requirement 
    for adequate personnel and funding for EPA to evaluate. For a state 
    with existing regulations requiring compliance with a state Section 177 
    Program, EPA will merely have to determine whether the state has 
    modified its regulations to include the language in the National LEV 
    regulations to accept National LEV as a compliance alternative for the 
    specified duration of the state commitment, as well as the additional 
    provisions specified above. Again, this is a very simple, objective 
    assessment. Finally, EPA has determined that National LEV would provide 
    reductions in the OTR equivalent to or greater than OTC State Section 
    177 Programs in the OTR (see section IV), so that an OTC State 
    commitment to National LEV would not interfere with attainment or any 
    other Act requirement. See below for further discussion of this point.
        Incorporating the OTC States' commitments to National LEV in state 
    regulations approved into the SIPs will substantially enhance the 
    stability of the National LEV program and support giving states credit 
    for SIP purposes for emissions reductions from National LEV. A SIP 
    revision would clearly indicate a state's commitment to National LEV 
    and would reiterate the state executive branch's support for the 
    National LEV program. More importantly, an approved SIP revision is 
    federal law and hence has binding legal effect. General Motors Corp. v. 
    U.S., 496 U.S. 530, 540 (1990).
        In the SNPRM, EPA explained the circumstances under which EPA 
    believes these SIP commitments would have binding effect. Several 
    commenters disagreed with EPA's legal interpretations. Of course, 
    whether a subsequent state law or regulation could be approved into the 
    SIP or whether it would be preempted by the earlier National LEV SIP 
    revision would be a fact-specific determination that could not be made 
    unless and until a state took final action arguably in conflict with 
    its National LEV SIP revision. Although this is an issue that might 
    never arise, EPA believes it is appropriate to lay out the key legal 
    principles that EPA believes would apply in such circumstances so that 
    any OTC State that submits a National LEV SIP revision does so with a 
    full understanding of how its commitment to National LEV would be 
    enforceable.
        A National LEV SIP revision would provide that the state commits to 
    accept National LEV or mandatory federal standards of at least 
    equivalent stringency as a compliance alternative to a state program 
    under section 177 for a specified time period. EPA approves SIP 
    submissions through a federal notice-and-comment rulemaking process 
    under section 110(k) of the Act. Approved SIP submissions are 
    incorporated by reference into the CFR and are enforceable federal law. 
    If a state adopted new state law or regulations that violated this 
    commitment in the SIP (e.g., by requiring compliance only with a state 
    Section 177 Program), this new state law would conflict with the 
    federally-approved National LEV SIP revision and would not be valid 
    prior to EPA approval into the SIP of the new law. Prior to such 
    action, the new state law would be precluded by the federal law with 
    which it conflicted (i.e., the SIP revision EPA had approved). The 
    courts have held that where Congress has the power under the Supremacy 
    Clause of the U.S. Constitution to preempt an area of state law (which 
    it has with respect to air pollution controls), state law is preempted 
    if either Congress evidences
    
    [[Page 937]]
    
    an intent to occupy a given field, or to the extent that the state law 
    actually conflicts with federal law. Hence, the later state regulation 
    that did not allow National LEV as a compliance alternative would be 
    preempted by the federally-approved National LEV SIP provision and 
    would be unenforceable against the manufacturers. Manufacturers could 
    bring suit against the state to clarify that the new state law was not 
    enforceable until approved by EPA, thereby enforcing the initial SIP 
    commitment in federal court.
        To revise the SIP, the state would have to submit the new 
    provisions and EPA would have to approve them into the SIP through 
    notice-and-comment rulemaking. If EPA approved the new provisions, they 
    would take effect. If EPA disapproved the new provisions, then the new 
    state law would continue to conflict with the federally-approved SIP 
    revision (which is federal law) containing the state commitment to 
    National LEV, and manufacturers could seek a judicial determination 
    that the federally-approved National LEV SIP revision commitment 
    preempted the new state law.
        Once a state has an approved SIP provision committing to accept 
    National LEV as a compliance alternative for a specified duration, 
    under section 110(l) of the CAA, EPA would be obligated to disapprove a 
    subsequent SIP revision that violated the state's commitment if EPA 
    were to find that the SIP revision would interfere with other states' 
    ability to attain or maintain the national ambient air quality 
    standards (NAAQS). Specifically, section 110(l) provides that EPA must 
    disapprove a plan revision if it ``interfere[s] with any applicable 
    requirement concerning attainment and reasonable further progress * * * 
    or any other applicable requirement of this Act.'' By the terms of its 
    rulemaking, National LEV comes into and stays in effect only if all 
    relevant states commit to allow it as a compliance alternative. If 
    National LEV comes into effect, a number of OTC States, as well as 
    states outside the OTR, are likely to rely on National LEV as a means 
    of attaining and maintaining the ozone NAAQS. These states are likely 
    to forego adoption of other control measures because they will count on 
    reductions from National LEV to meet their attainment and maintenance 
    obligations. In this manner, other states will be relying on each of 
    the OTC States keeping its commitment to National LEV. An OTC State 
    breaking its commitment to allow National LEV as a compliance 
    alternative could lead to the dissolution of the National LEV program, 
    which in turn would likely deprive other states of the emission 
    reductions from National LEV, and could thereby interfere with those 
    other states' ability to attain. As discussed above, in the SIP 
    revisions committing to National LEV, each OTC State would explicitly 
    recognize that the state's commitment to National LEV is necessary to 
    ensure that the program remain in effect.
        One commenter opposed EPA's reading of section 110 on several 
    grounds, focusing in particular on the potential effects on states 
    downwind from the violating state. The commenter objects to anything 
    that would discourage a state that committed to National LEV from 
    implementing a Section 177 Program if that state finds in the future 
    that National LEV will not prevent emissions within that state from 
    interfering with attainment in downwind states. The commenter claims 
    that the commitment to National LEV would violate the section 
    110(a)(2)(D) requirement that emissions in a state cannot interfere 
    with attainment or maintenance in downwind states.
        EPA rejects the suggestion that a state's commitment to National 
    LEV has the potential to interfere with that state's ability to comply 
    with section 110(a)(2)(D). Section 110(a)(2)(D) requires SIPs to 
    ``contain adequate provisions prohibiting * * * any source or other 
    type of emissions activity within the State from emitting any air 
    pollutant in amounts which will * * * contribute significantly to 
    nonattainment in, or interfere with maintenance by, any other state. * 
    * *'' Thus, section 110(a)(2)(D) holds a state responsible for reducing 
    a given quantity of emissions that contributes significantly to 
    nonattainment in another state. It does not mandate any particular 
    measure for reducing those emissions, and the Circuit Court of Appeals 
    for the District of Columbia, in Virginia v. EPA, 108 F. 3d 1397 (D.C. 
    Cir. 1997), precluded EPA from requiring states to adopt a program 
    under section 177. States commonly make choices between emissions 
    control measures, and the decision to adopt one measure often precludes 
    another, usually due to practical constraints such as incompatible 
    technology, limited resources, lead time requirements, etc. The choice 
    of National LEV is no different. In selecting National LEV as a means 
    of controlling emissions from new motor vehicles, a state will be fully 
    aware that the choice requires giving up the ability to adopt a state 
    Section 177 Program for a given period of time, except under specified 
    circumstances. EPA has determined that National LEV produces equivalent 
    or greater emissions reductions than OTC State-by-State adoption of 
    Section 177 Programs. Thus, the only way in which adoption of OTC State 
    Section 177 programs in lieu of National LEV could help meet OTC 
    States' section 110(a)(2)(D) obligations is if California were to adopt 
    more stringent CAL LEV requirements, all or almost all OTC States also 
    adopted such standards, and the timing of the adoptions was such that 
    the standards would become effective earlier than the date on which the 
    OTC States' participation in National LEV would have ended had the 
    states opted into National LEV instead. For National LEV to come into 
    effect in MY1999, OTC States must evaluate the alternatives based on 
    the information available at this time and make a choice now as to 
    whether to opt into National LEV. As is often the case, if state 
    regulators wait until they have perfect information about all possible 
    options, one option--National LEV, which now looks to be the most 
    attractive option--will no longer be available. Nor is it an option for 
    OTC States to opt into National LEV without making an enforceable 
    commitment for the specified duration. National LEV is a voluntary 
    program for both states and manufacturers, and manufacturers are 
    unwilling to supply National LEV vehicles without assurance that their 
    future compliance obligations will remain stable for the specified 
    duration. Therefore, a commitment by OTC States to accept compliance 
    with National LEV for the specified duration is an integral and 
    critical element of National LEV. Based on the options and information 
    available now to OTC States and only the possibility that California 
    will tighten its standards at some point in the future, an OTC State 
    that made an enforceable commitment to National LEV for the specified 
    duration could not be said to be interfering with attainment of 
    downwind states, nor could that commitment be held unenforceable in the 
    future. Of course, for most OTC States, National LEV is only one of the 
    actions they will need to take to meet their CAA obligations. States 
    committed to National LEV would remain responsible for compliance with 
    section 110(a)(2)(D) and would be able to use other means to achieve 
    the necessary reductions. Thus, the state commitments to National LEV 
    in no way violate section 110(a)(2)(D), nor are they consequently 
    unenforceable as the commenter suggests.
        The commenter further asserts that EPA is attempting to prohibit 
    states from adopting Section 177 Programs
    
    [[Page 938]]
    
    and this is illegal and contrary to section 177, which provides states 
    the right to adopt state standards for new motor vehicles that are 
    identical to California standards. EPA agrees that section 177 clearly 
    provides states the right to adopt the California standards. Under 
    National LEV, states make the choice whether to exercise that right and 
    implement the California standards, or to commit to accept 
    manufacturers' compliance with an alternative set of emissions controls 
    on new motor vehicles for a limited period of time. The OTC States and 
    the manufacturers developed the basic framework and requirements for 
    the National LEV program and the fundamental agreement on which it is 
    based. EPA does not have the authority to require the manufacturers to 
    produce National LEV vehicles without their agreement or to require the 
    OTC States to commit to National LEV. Absent the voluntary actions of 
    the manufacturers and OTC States there will be no National LEV Program. 
    However, if the manufacturers and OTC States choose to commit to 
    National LEV and bring the program into being, it is in no way contrary 
    to section 177 or any other provision of the Clean Air Act for EPA to 
    enforce the agreement in the manner provided in today's rule.
        The commenter further contends that EPA's reading of section 110(l) 
    is incorrect for several reasons. As discussed above, under EPA's 
    interpretation, section 110(l) could bar EPA from approving into the 
    SIP a state submission that would revoke an earlier SIP provision 
    committing a state to accept National LEV as a compliance alternative 
    for a specified duration. First, the commenter states that based on the 
    same analysis, EPA could use its authority under section 110(k)(5) to 
    require even unwilling states to revise their SIPs to accept National 
    LEV as a compliance alternative on the theory that failure to do so 
    would frustrate National LEV and thus interfere with attainment in 
    neighboring states. The commenter states that EPA has no such authority 
    under section 110(k)(5), (under Commonwealth of Virginia v. 
    Environmental Protection Agency, 108 F.3d 1397 (D.C. Cir. 1997).
        EPA rejects the contention that the section 110(k)(5) analysis is 
    comparable to EPA's interpretation of section 110(l). As emphasized 
    above, National LEV is a voluntary program. Enforcing an agreement that 
    states have voluntarily entered into is a fundamentally different 
    action from mandating that states enter into an agreement. More 
    specifically, EPA's interpretation of section 110(l) relies on the 
    effect that a violation of a state commitment is likely to have on 
    other states that have relied upon the National LEV program. A program 
    will not be useful for state air pollution control and planning 
    purposes unless there is some assurance that it will continue over 
    time, and EPA has attempted to structure National LEV so as to provide 
    such an assurance of stability. Given this structure, states will 
    likely reasonably rely on achieving a certain quantity of emissions 
    reductions from National LEV and hence will likely decide not to adopt 
    other pollution control measures. Since most measures take time to 
    adopt and implement, the sudden and unexpected loss of emissions 
    reductions from National LEV would be likely to cause a significant 
    delay in some states' emissions control efforts. As a consequence, it 
    would affect such states' ability to meet the statutory and regulatory 
    deadlines for attainment as well as the obligation to protect the 
    health and welfare of their citizens. In contrast, if OTC States did 
    not commit to National LEV and the program never came into effect, 
    while the opportunity for emissions reductions from National LEV would 
    be lost, states would never have expected to receive those reductions, 
    would not have foregone opportunities for other types of emissions 
    reductions, and would not be disadvantaged in their ability to pursue 
    other measures. Under those circumstances, EPA would have no basis for 
    finding that failure to include a commitment to National LEV would make 
    a SIP substantially inadequate to attain the NAAQS or otherwise comply 
    with any requirement of the CAA.
        The commenter also cites section 110(a)(2)(D) to argue that section 
    110 holds each state responsible only for emissions within its 
    jurisdiction and requires a state to take action only if those 
    emissions are interfering with attainment in another state. EPA agrees 
    that section 110(a)(2)(D) only applies to emissions activity within the 
    state, but EPA is here relying on section 110(l), not section 
    110(a)(2)(D). Section 110(l) simply provides that EPA shall not approve 
    a revision if it ``would interfere with any applicable requirement 
    concerning attainment and reasonable further progress * * * or any 
    other applicable requirement of [the] Act.'' (Emphasis added.) Section 
    110(l) makes no reference to emissions activities within the state, and 
    EPA declines to attempt to read in such a limitation.
        The commenter states further that it would not violate section 110 
    for EPA to approve into a SIP state provisions that replace National 
    LEV with a section 177 program when the section 177 program would 
    result in equivalent or lower emissions within the state. If the 
    manufacturers might choose to opt out of National LEV as a consequence 
    of an EPA approval of such a revision, the revision would jeopardize 
    all of the emissions reductions from the National LEV program and 
    states without backstop programs could experience the significantly 
    higher emissions that would be produced by Tier 1 vehicles. Thus, it is 
    highly unlikely that the proposed SIP revision would not interfere with 
    attainment in at least some states that had relied upon National LEV, 
    even if emissions in the violating state remained stable or decreased 
    and vehicles from the violating state that migrated into other states 
    emitted at the same or lower levels. For these reasons, section 110(l) 
    could require EPA to disapprove the state's proposed revision.
        Finally, the commenter states that EPA could not find that a 
    proposed SIP revision breaking the state's commitment to National LEV 
    would interfere with attainment under section 110(l) because 
    manufacturers would be allowed to sell Tier 1 vehicles in the violating 
    state even if they do not opt out of National LEV. In that situation, 
    approval of the section 177 program would reduce emissions in that 
    state in comparison to the Tier 1 requirements that would otherwise 
    apply. EPA disagrees with the commenter's analysis of how this 
    situation would relate to the requirements of section 110(l). Given the 
    likelihood that manufacturers would opt out of National LEV if EPA were 
    to approve the SIP revision, approval of the SIP revision would be 
    likely to result in overall higher emissions from Tier 1 requirements 
    in many states, not just one, and a number of these states are likely 
    to be relying on the reductions from National LEV. Moreover, the 
    violating state has the ability to avoid some or all of the negative 
    emissions effects of its action, either by not taking the action in the 
    first place, or by curing its violation, as discussed above in section 
    VI.A.1.19 In contrast, other states cannot prevent a state 
    from violating, but rather must rely on EPA's disapproval to retain the 
    emissions reductions that they are relying on for
    
    [[Page 939]]
    
    attainment. Under these circumstances, the fact that the violating 
    state had taken action that caused Tier 1 requirements to apply in that 
    state would not prevent EPA from disapproving that state's SIP revision 
    on the grounds that the revision would interfere with attainment in 
    other states.
    ---------------------------------------------------------------------------
    
        \19\ If a state violated its commitment, it would have the 
    ability to limit the period of time for which it would receive Tier 
    1 vehicles to approximately two full model years by curing the 
    violation. Even if EPA were to approve the SIP revision, the state 
    would receive Tier 1 vehicles for two years pursuant to the 
    requirement for lead time under section 177. Thus, an EPA 
    disapproval of a violating state's proposed SIP revision would not 
    necessarily result in higher emissions in the violating state 
    compared to the result if EPA had approved the proposed SIP 
    revision.
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    VI. Incentives for Parties to Keep Commitments to Program
    
        Once it comes into effect, National LEV is designed to be a stable 
    program that will remain in effect until replaced by mandatory federal 
    tailpipe standards of at least equivalent stringency, provided such 
    standards are necessary and cost-effective. Manufacturers have the 
    option, but not the requirement, to participate in National LEV. 
    Manufacturers have indicated a willingness to opt into the program, but 
    only if the EPA and the OTC States make certain commitments. To give 
    the manufacturers both assurance that the commitments will be kept and 
    recourse if they are not, the program includes a few specified 
    conditions (``offramps'') that would allow manufacturers to opt out of 
    National LEV if EPA or the OTC States did not keep their commitments. 
    In addition, the OTC States also need assurance that National LEV will 
    continue to provide the benefits they anticipated when they opted into 
    the program, both in terms of the number of manufacturers covered by 
    the program and the level of emissions reductions that the program was 
    designed to achieve. Thus, National LEV also includes limited offramps 
    for the OTC States to protect against changes in anticipated emission 
    benefits or the number of covered manufacturers. Both the 
    manufacturers' and the OTC States' offramps, set forth in 40 CFR 
    86.1707, are structured to maximize all parties' incentives to maintain 
    the agreed-upon program provisions and thereby to maximize the 
    stability of National LEV over its intended duration.
        In the unlikely event that any of the offramps were triggered and 
    manufacturers or OTC States opted out, today's regulations set forth 
    which requirements would apply, the timing of such requirements, the 
    states in which they would apply, and the manufacturers that would have 
    to comply with them. The main purpose of these provisions is to enhance 
    the stability of the program by minimizing the incentives for EPA or 
    the OTC States to act in a manner that would trigger an offramp. 
    Additionally, EPA has structured the offramp provisions such that no 
    single event automatically would end the National LEV program. EPA will 
    continue to make National LEV available as long as one or more 
    manufacturers and one or more OTC States wish to remain in the program. 
    EPA recognizes, of course, that if a significant number of OTC States 
    or manufacturers were to opt out of National LEV, after a certain point 
    it is unlikely that the remaining parties would choose to continue the 
    program. However, the issue is highly unlikely to arise, and if it did, 
    it is not clear what would be the critical mass of opt-outs sufficient 
    to end the program. Rather than deciding now how many OTC State and 
    auto manufacturer opt-outs would be significant enough to end National 
    LEV, EPA believes it is both more appropriate and more efficient to 
    leave that decision to the OTC States and manufacturers to decide, in 
    the unlikely event that an offramp is triggered and significant opt-
    outs occur. EPA has received no comments on the SNPRM opposing this 
    general approach.
        In the NPRM, EPA proposed that the manufacturers' right to opt out 
    of the National LEV program would be limited to two conditions. These 
    offramps were: (1) EPA modification of a Stable Standard, except as 
    specifically provided, and (2) an OTC State's failure to meet or keep 
    its commitment regarding adoption or retention of a state motor vehicle 
    program under section 177. The Final Framework Rule addressed the first 
    offramp (recodified in today's rule at 40 CFR 86.1707(d)), which would 
    allow manufacturers to opt out of National LEV if EPA were to modify a 
    Stable Standard except as provided for under the National LEV 
    regulations. The second offramp is addressed in today's Final Rule. EPA 
    also is adding a third type of offramp related to auto manufacturers' 
    concerns regarding the effects of using federal fuel (instead of 
    California fuel) on emissions control systems. This is discussed in 
    section VI.C below. In addition, as proposed in the SNPRM, today's 
    Final Rule includes a fourth type of offramp that allows manufacturers 
    to opt out based on an OTC State or another manufacturer legitimately 
    opting out of National LEV. Today's rule also finalizes two offramps 
    for OTC States. An OTC State may opt out if a manufacturer opts out or 
    if EPA makes a finding that National LEV will not produce (or is not 
    producing) emissions reductions in the OTR equivalent to state Section 
    177 Programs in the OTR. Finally, this section discusses EPA's 
    interpretation of Section 177 if an offramp is taken.
    
    A. Offramp for Manufacturers for OTC State Violation of Commitment
    
        As established in today's Final Rule, there are several ways in 
    which an OTC State might break its commitment and thereby allow 
    manufacturers to opt out of National LEV. These are: (1) taking final 
    action in violation of the commitment to continue to allow National LEV 
    as a compliance alternative to a Section 177 Program or to a ZEV 
    mandate (in those OTC States without existing ZEV mandates); (2) 
    failing to submit a National LEV SIP revision within the timeframe set 
    forth in the National LEV regulations; (3) submitting an inadequate 
    National LEV SIP revision; and (4) taking final action (by an OTC State 
    without an existing ZEV mandate) adopting a ZEV mandate effective 
    during the state's commitment to National LEV. 20 The 
    discussion below addresses each of these possible types of OTC State 
    violations individually. EPA does not believe that any of these 
    scenarios are likely to arise under the National LEV program. 
    Nevertheless, spelling out in the regulations the consequences under 
    each of these scenarios will provide the parties certainty regarding 
    the worst-case outcomes, and more importantly, allows EPA to structure 
    the consequences so as to minimize the likelihood that any of these 
    scenarios will occur.
    ---------------------------------------------------------------------------
    
        \20\ In addition, as discussed in the following section, 
    manufacturers may opt out if an OTC State takes a legitimate 
    offramp.
    ---------------------------------------------------------------------------
    
    1. OTC State No Longer Accepts National LEV as a Compliance Alternative
        The most significant way in which an OTC State could violate its 
    commitment to National LEV would be to attempt to have a Section 177 
    Program that was in effect during the state's commitment to National 
    LEV 21 and that did not allow National LEV or mandatory 
    federal standards of at least equivalent stringency as a compliance 
    alternative. 22 (An OTC State would not be in violation of 
    its commitment under National LEV if it had (or adopted) a Section 177 
    Program that was effective after the end of its commitment to National 
    LEV that did not allow National LEV as a compliance alternative.) This 
    could happen if an
    
    [[Page 940]]
    
    OTC State accepted National LEV as a compliance alternative to a state 
    Section 177 Program or a ZEV mandate (in an OTC State without an 
    existing ZEV mandate) and then took final action purportedly removing 
    the alternative compliance provisions from its regulations, leaving 
    only the state Section 177 Program or ZEV mandate requirements in 
    place. It would also happen if an OTC State took final action 
    purportedly adopting a Section 177 Program or a ZEV mandate (in an OTC 
    State without an existing ZEV mandate) without providing for National 
    LEV as a compliance alternative. 23 This violation of the 
    OTC State's commitment to National LEV attempts to impose a compliance 
    burden directly on the manufacturers and would abandon the most 
    fundamental element of the agreement underlying the voluntary National 
    LEV program.
    ---------------------------------------------------------------------------
    
        \21\ An OTC State's commitment to National LEV lasts until 
    MY2006, unless EPA fails to issue Tier 2 standards at least as 
    stringent as National LEV on or before December 15, 2000, in which 
    case the commitment lasts until MY2004.
        \22\ Throughout this preamble, EPA often uses ``National LEV as 
    a compliance alternative'' as shorthand for ``National LEV or 
    mandatory federal standards of at least equivalent stringency as a 
    compliance alternative.''
        \23\ In addition, an OTC State with a Section 177 Program in its 
    regulations at the time of opt-in that does not already permit 
    manufacturers to comply with National LEV as a compliance 
    alternative might fail to modify those existing regulations within 
    the time-frame provided, which is the same as the deadline for 
    submission of the state's SIP revision. The consequences of this 
    type of violation would differ slightly from the consequences of 
    other types of violations that attempted to have a Section 177 
    Program without allowing National LEV as a compliance alternative, 
    as noted below in n.24.
    ---------------------------------------------------------------------------
    
        The consequences of such a violation, as discussed below and set 
    forth in 40 CFR 86.1707(e), take into account the seriousness of the 
    breach of the commitment, even though the violation would not 
    necessarily directly burden the manufacturers. Once a state adequately 
    commits to National LEV through an approved SIP revision, even if the 
    state were to change its regulations to disallow compliance with 
    National LEV, the requirement would not be enforceable until EPA 
    approved a further SIP revision incorporating the change, as discussed 
    above in section V.C.4. Yet, although the violation might not actually 
    impose any burden on the manufacturers because it is not enforceable, 
    manufacturers should not be bound to comply with more stringent 
    National LEV requirements in the violating state and should not be 
    bound to continue in the National LEV program, as even an unenforceable 
    Section 177 Program would create risks and uncertainties for 
    manufacturers. Manufacturers would be at risk of having to defend 
    against a state enforcement action. The question of whether EPA could 
    approve a proposed state SIP revision deleting National LEV as a 
    compliance alternative--if only by virtue of the lack of precedence for 
    this issue and its dependence on the specific facts--would create 
    further uncertainty for manufacturers.
        Manufacturers would be able to opt out at any time after an OTC 
    State took final action that would (or attempted to) require 
    manufacturers to comply with a Section 177 Program or a ZEV mandate (in 
    an OTC State without an existing ZEV mandate) prior to the end of the 
    state's commitment to National LEV without allowing them to comply with 
    National LEV or mandatory federal standards of at least equivalent 
    stringency as an alternative, even if the effective date of the state 
    requirement were some time in the future. The final state action would 
    be the action promulgating the state law or regulations at issue, not 
    the act of defending such law or regulations in litigation. Thus, a 
    self-effectuating state law purporting to impose a Section 177 Program 
    without including National LEV as a compliance alternative would be 
    final state action, as would final state regulations purporting to 
    impose such a program. A state law directing the relevant state agency 
    to change its regulations to remove National LEV as a compliance 
    alternative would not be a final state action, but the regulations 
    promulgated in accordance with that directive would be final state 
    action.
        The manufacturers commented that the definition of ``final state 
    action'' should include the date on which a state passes legislation 
    that requires a state environmental agency to eliminate National LEV as 
    a compliance alternative, even if that state legislation is not self-
    effectuating. EPA is concerned that it may not necessarily be clear in 
    a particular instance how a law directing a state agency to change its 
    regulations relating to National LEV would actually be implemented by 
    the state agency. Depending on the substantive results of the state 
    rulemaking process implementing the directives of the law and the 
    timing of such regulations, the state may or may not actually violate 
    its commitment to the program. Rather than attempting to hypothesize 
    the effect of final state regulations once promulgated, EPA believes it 
    is appropriate to define a final state action as the action that 
    finalizes the state law or regulations that would be directly 
    applicable to the motor vehicle manufacturers upon the effective date 
    of such law or regulations.
        Today's rule provides that, if an OTC State were to violate its 
    commitment by purportedly disallowing National LEV as a compliance 
    alternative, there would be both automatic consequences in the 
    violating state and an opportunity for manufacturers to opt out of 
    National LEV.24 Two significant elements determine the 
    consequences in the violating state. The first element is the 
    manufacturers' National LEV compliance obligations in the violating 
    state. The second element is when the state Section 177 Program or ZEV 
    mandate requirements apply to manufacturers. Outside of the violating 
    state, manufacturers would continue to be subject to the National LEV 
    requirements unless they opted out of the National LEV program.
    ---------------------------------------------------------------------------
    
        \24\ In an OTC State that had a Section 177 Program in its 
    regulations at the time of opt-in and that had never accepted 
    National LEV as a compliance alternative to the Section 177 Program 
    requirements, the consequences in the violating state discussed in 
    this section would not apply, given EPA's interpretation of section 
    177. See section VI.E. However, the provisions for a manufacturer's 
    offramp would be the same for a state that failed to modify existing 
    regulations to accept National LEV as a compliance alternative as 
    for any other state action not allowing National LEV as a compliance 
    alternative.
    ---------------------------------------------------------------------------
    
        Until the violating state's Section 177 Program or ZEV mandate 
    requirements apply, the manufacturers' compliance obligations in that 
    state would be governed by the terms of the National LEV regulations. 
    In a state that had violated its commitment by attempting to have a 
    Section 177 Program or ZEV mandate without allowing National LEV as a 
    compliance alternative, beginning with the next model 
    year,25 the National LEV regulations would allow 
    manufacturers to sell vehicles complying with Tier 1 tailpipe standards 
    in that state and those vehicles would not be counted in determining 
    whether the NLEV fleet average NMOG standard was met. Because model 
    years generally run somewhat ahead of the calendar years with the same 
    numbers, generally this will result in a near-term or immediate change 
    in the manufacturers' compliance obligations.
    ---------------------------------------------------------------------------
    
        \25\ The ``next model year'' would be the model year named for 
    the calendar year following the calendar year in which the OTC State 
    took final state action violating its commitment. For example, if an 
    OTC State violated its commitment by taking final state action in 
    calendar year 1999, the next model year would be MY2000.
    ---------------------------------------------------------------------------
    
        EPA had proposed that, until the violating state's Section 177 
    Program requirements applied (which might not be until MY2006), the 
    manufacturers would only have to meet the federal Tier 1 tailpipe 
    standards for vehicles sold in the violating state, and those vehicles 
    would not be used to calculate the manufacturers' fleet NMOG averages. 
    Several commenters objected to this provision on the basis that the 
    violating state or a downwind state might need emissions reductions 
    from controls on new motor vehicles in the
    
    [[Page 941]]
    
    violating state during the timeframe in which National LEV regulations 
    required that federal Tier 1 standards be met in the violating state. 
    In response, EPA is modifying this provision slightly to allow a 
    violating state to ``cure'' a violation and regain the benefits of 
    National LEV (with respect to manufacturers that had not opted out of 
    National LEV) by reversing the action that caused the violation. EPA 
    believes it is highly unlikely that a state would violate its 
    commitment in the first place, let alone that it would do so and then 
    reverse its action shortly thereafter. Nevertheless such a scenario can 
    be envisioned, for example, in the situation where a state was counting 
    on an alternative means of obtaining needed emissions reductions and 
    then found that the alternative was for some reason not viable. EPA 
    believes that it is appropriate to structure the National LEV 
    regulations so as to maximize states' incentives to uphold their 
    commitments to National LEV without, under certain circumstances, 
    foreclosing a state from obtaining the benefits of National LEV for the 
    remainder of the National LEV program.
        Under today's final rule, rather than allowing manufacturers to 
    sell only Tier 1 vehicles in a violating state for as long as the 
    manufacturers are governed by National LEV in that state, if the 
    violating state reverses its action (by taking final action 
    withdrawing, nullifying or otherwise reversing the final action that 
    violated its commitment), after a transition period, vehicles sold in 
    that state by manufacturers that had not opted out of National LEV 
    would once again be subject to the National LEV fleet average NMOG 
    requirements. Vehicles would be subject to the fleet average NMOG 
    standard as of the model year named for the second calendar year after 
    the violating state took the final action reversing the action that 
    broke its commitment or as of the model year named for the fourth 
    calendar year following the calendar year in which the violating state 
    took the final action, whichever is later. For example, if the 
    violating action occurred in 1999 and the violating state reversed that 
    action in 2000, vehicles sold in that state would count towards the 
    NLEV NMOG fleet average starting with MY2003 (the model year named for 
    the fourth calendar year following the calendar year in which the 
    violating action occurred). If the violating action action occurred in 
    1999 and was reversed in 2002, vehicles in that state would count 
    towards the NLEV NMOG fleet average starting with MY2004 (the model 
    year named for the second calendar year in which the violating action 
    was reversed). EPA believes that it is important to provide OTC States 
    that commit to National LEV with an incentive to keep their commitments 
    and that this approach provides such an incentive.26
    ---------------------------------------------------------------------------
    
        \26\ The commenters mistakenly assumed that, in the absence of 
    this provision, a state that broke its commitment would immediately 
    get the benefits of a state Section 177 Program. Rather, under 
    section 177, a violating state would only be entitled to Tier 1 
    vehicles for at least two years after it broke its commitment. Thus, 
    for at least two years, the National LEV provision that 
    manufacturers that stay in the program are obligated to provide only 
    Tier 1 vehicles in the violating state is consistent with what would 
    happen under section 177 if the violating state's action ended the 
    program. (For ease of administration, if a violating state is in and 
    then out and then back in the National LEV program, EPA has extended 
    the period that would otherwise be provided by section 177 to ensure 
    that when a states' vehicles again count towards calculation of the 
    NMOG average, all of a manufacturer's vehicles in the first covered 
    model year count towards the NMOG average.) Even were lead time not 
    required by section 177, EPA believes it is appropriate to give 
    manufacturers time to comply with new motor vehicle requirements 
    pursuant to a change in a state's requirements.
    ---------------------------------------------------------------------------
    
        The earliest date on which the violating state's Section 177 
    Program or ZEV mandate would apply is governed by the two model-year 
    lead time requirement of section 177, EPA's regulations on model year 
    at 40 CFR part 85 subpart X and the National LEV regulations. This date 
    would apply only for any auto manufacturer that opted out of National 
    LEV as a result of the violating state's action (provided that it is 
    later than the effective date of the opt-out), for any auto 
    manufacturer that decided to comply with the violating state's 
    requirements even though it otherwise chose to stay in National LEV, 
    and for all manufacturers if EPA approved the violating state's program 
    into the SIP.27 (As discussed above, EPA believes the 
    violating state's refusal to allow National LEV as a compliance 
    alternative would not otherwise be effective until MY2006 (or MY2004, 
    if EPA failed to issue Tier 2 standards at least as stringent as 
    National LEV on or before December 15, 2000).) Thus, if none of these 
    situations occurred, the only requirements applicable to manufacturers 
    in the violating state would be the National LEV regulations, which 
    would allow manufacturers to sell in the violating state vehicles that 
    meet Tier 1 tailpipe standards and to exclude those vehicles from the 
    fleet average NMOG calculation for the time period discussed above.
    ---------------------------------------------------------------------------
    
        \27\ Some commenters have expressed the view that, if an OTC 
    State were to delete National LEV as a compliance alternative, the 
    State's new (or revised) Section 177 Program would not be preempted 
    by the federally approved National LEV SIP revision nor would EPA 
    have the legal authority to disapprove the revised state program if 
    it were submitted to EPA for approval into the SIP. As discussed in 
    this preamble and the Response to Comments for today's rule, EPA 
    disagrees with these commenters. However, if these commenters were 
    correct regarding the legal status of the revised state program 
    disallowing National LEV as a compliance alternative, the earliest 
    date on which the violating state's Section 177 Program or ZEV 
    mandate would apply is governed by the lead time requirements in 
    section 177 and EPA's regulations on model year at 40 CFR Part 85 
    subpart X and in the National LEV regulations.
    ---------------------------------------------------------------------------
    
        After National LEV is in effect, a change to a state regulation 
    that deletes National LEV as a compliance alternative attempts to 
    change the manufacturers' obligations. In that circumstance, as 
    discussed in section VI.E below, EPA interprets section 177 to require 
    two years of lead time from the date that the state takes final action 
    changing its regulations (or other law) deleting National LEV as a 
    compliance alternative, regardless of when the state adopted its 
    previous Section 177 Program. Thus, pursuant to the model year 
    regulations at 40 CFR part 85 subpart X and today's regulations at 40 
    CFR 86.1707, the earliest the state Section 177 Program or ZEV mandate 
    requirements could apply would be to engine families for which 
    production begins after the date two calendar years from the date of 
    the final state action. For example, if the violating state promulgated 
    regulations purportedly removing National LEV as a compliance 
    alternative on June 1, 2000, the earliest the state Section 177 Program 
    or ZEV mandate requirements could apply would be to engine families 
    that began production on or after June 1, 2002, which might apply to 
    some, but certainly not all, MY2003 vehicles.
        In the SNPRM, EPA raised the issue of whether manufacturers should 
    have at least four, rather than two, years of lead time from the date 
    that the state takes final action changing its regulations to delete 
    National LEV as a compliance alternative. The manufacturers' comments 
    advocated that there should be four years of lead time from the date of 
    the state violation of its commitment, but they did not suggest any way 
    (other than enforcing the commitment in a SIP) to make such a 
    requirement for lead time legally enforceable against a state that was 
    already in violation of its commitment to accept National LEV as a 
    compliance alternative to a state Section 177 Program. Numerous other 
    commenters opposed the idea of providing four years of lead time on the 
    basis that it is contrary to the statutory language governing lead time 
    for state programs adopted under section 177. The MOUs initialled by 
    the OTC and manufacturers' organizations did not
    
    [[Page 942]]
    
    allude to a four-year lead time under any circumstances, indicating 
    that the parties had not raised this in their negotiations, let alone 
    agreed upon it, as an appropriate element of the National LEV program. 
    Finally, the National LEV regulations provide several other significant 
    disincentives to an OTC State breaking its commitment, as discussed in 
    this section, and a four-year lead time would likely add little to 
    these existing disincentives. Thus, EPA does not believe it would be 
    reasonable to try to require a four-year lead time under section 177 
    for a state violation of its commitment to National LEV.
        The combined effect of the National LEV regulations allowing 
    manufacturers to comply with Tier 1 tailpipe standards in the violating 
    state and the requirement for two-years lead time before the state 
    Section 177 Program or ZEV mandate requirements could apply means that, 
    if an OTC State were to violate its commitment by not allowing National 
    LEV as a compliance alternative, manufacturers would be subject to only 
    Tier 1 tailpipe standards (and not the NLEV NMOG average) in that state 
    for at least two years. As a consequence, the violating state could not 
    claim SIP credits for control of emissions from new motor vehicles 
    meeting anything more stringent than Tier 1 tailpipe standards during 
    that period. EPA believes that this would provide a powerful incentive 
    for the OTC States to uphold their commitments to accept National LEV 
    as a compliance alternative for the specified duration.
        EPA recognizes that it may take manufacturers some time to take 
    advantage of the less stringent Tier 1 tailpipe standards, and that, 
    consequently, the hardware of the vehicles supplied to the violating 
    state may not change dramatically in the short-term. However, 
    manufacturers would be able to revise vehicle compliance levels rapidly 
    to provide that, for warranty and recall purposes, the vehicles are 
    only complying with Tier 1 tailpipe standards. This means that, over 
    the life of those vehicles, they would only be required to produce 
    emissions below the 50,000 mile and 100,000 mile Tier 1 standards and 
    enforcement action could not be taken to require those vehicles to meet 
    any more stringent standards.28 As long as manufacturers are 
    not required to sell vehicles meeting standards more stringent than 
    Tier 1 in the violating state, it would not be appropriate for EPA to 
    approve SIP credits for any emissions reductions beyond the levels 
    provided by Tier 1 tailpipe standards. Those vehicles would not be 
    included in calculating the manufacturers' compliance with the National 
    LEV fleet average NMOG standards. Thus, the state would not receive 
    emission credits beyond Tier 1 levels if the vehicles sold in that 
    state were certified to Tier 1 levels when sold in that state because 
    the SIP would not provide in any way for such vehicles to meet emission 
    standards more stringent than Tier 1 levels.
    ---------------------------------------------------------------------------
    
        \28\ See section VIII.C for discussion of how EPA's vehicle 
    certification process would allow a manufacturer to provide vehicles 
    meeting Tier 1 standards in a violating state.
    ---------------------------------------------------------------------------
    
        In addition to the relaxed emissions standards that would apply to 
    vehicles sold in the violating state, the other incentive for OTC 
    States not to violate their commitments is that manufacturers would 
    also be able to opt out of National LEV if an OTC State violated its 
    commitment to the program by not allowing National LEV as a compliance 
    alternative. As proposed, the FRM does not set a time limit for 
    manufacturers to exercise their right to opt out as long as the state 
    is in violation of its commitment. After a manufacturer opted out, 
    there also would be no opportunity for the state to cure the violation 
    by changing the state law or regulations to accept National LEV as a 
    compliance alternative and thereby negate an opt-out that a 
    manufacturer had already submitted, regardless of whether that opt-out 
    had become effective already. However, once a violating state took 
    final action to cure the violation, manufacturers that had not already 
    opted out could not opt out based on the violation that the state had 
    cured.
        The Final Framework Rule gives EPA an opportunity to make a finding 
    as to the validity of an opt-out based on a change to a Stable 
    Standard. See 62 FR 31202-07. This both provides a safe harbor for a 
    manufacturer that relies on an EPA determination of validity, and 
    provides for rapid resolution in the United States Court of Appeals for 
    the District of Columbia if the validity is disputed, thereby avoiding 
    protracted litigation in federal district court. In contrast, EPA does 
    not believe such a process is necessary here. The validity of an opt-
    out based on a state disallowing National LEV as a compliance 
    alternative should be a straight-forward factual determination. 
    Consequently, EPA believes there is very little benefit to be gained by 
    providing for an EPA determination of the validity of such an opt-out, 
    and today's final rule does not provide for such a determination.
        As proposed, a manufacturer that opts out of National LEV based on 
    a state violation of its commitment to National LEV must continue to 
    comply with National LEV until the opt-out becomes effective (although 
    Tier 1 tailpipe standards will apply in the violating state, as 
    discussed above). A manufacturer's opt-out notification must specify 
    the effective date of the opt-out, which in no event could be any 
    earlier than the next model year (i.e., the model year named for the 
    calendar year following the calendar year in which the manufacturer 
    opted out).29 After the effective date of its opt-out, a 
    manufacturer would have to comply with any non-violating state's 
    Section 177 Program (except for ZEV mandates) provided that at least 
    two-years lead time (as provided in section 177) had passed since the 
    adoption of the state's Section 177 Program. Other than those ZEV 
    mandates that would be unaffected by the National LEV program (i.e., 
    existing ZEV mandates), if a manufacturer opts out, it would not be 
    subject to any other ZEV mandates until two years of lead time had 
    passed, which would run from the date the manufacturer opts out of 
    National LEV and be measured according to the section 177 implementing 
    regulations. After the effective date of a manufacturer's opt-out, in a 
    non-violating state without a Section 177 Program, the manufacturer 
    must meet all applicable federal standards that would apply in the 
    absence of National LEV.
    ---------------------------------------------------------------------------
    
        \29\ If, however, an OTC State took a legitimate offramp as 
    discussed below, a manufacturer could not use a delayed effective 
    date of opt out to continue to comply with National LEV in a state 
    that had opted out after that state's opt-out became effective. As 
    discussed below in section VI.D, an OTC State legitimately opting 
    out of National LEV is required to provide manufacturers at least 
    two-years lead time.
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        The following summarizes the tailpipe standards that would apply if 
    an OTC State violated its commitment by not allowing National LEV as a 
    compliance alternative. For vehicles sold in the violating state, all 
    manufacturers would be allowed to sell vehicles meeting Tier 1 
    standards and to exclude those vehicles from the NMOG fleet average 
    beginning in the next model year after the date of the state violation 
    for at least the two-year lead time set forth in section 177 and the 
    implementing regulations; then manufacturers would become subject to 
    the state Section 177 Program only if the manufacturer opted out of 
    National LEV and its opt-out had become effective, if the manufacturer 
    decided to comply with the violating state's new Section
    
    [[Page 943]]
    
    177 Program while remaining in National LEV, or if EPA approved the 
    state's requirements into the SIP. If a manufacturer opted out, before 
    the opt-out became effective, the manufacturer would continue to be 
    subject to all National LEV requirements for vehicles sold outside of 
    the violating state. Once a manufacturer's opt-out had become 
    effective, for vehicles sold outside of the violating state, the 
    manufacturer would have to comply with any backstop state Section 177 
    Programs (except ZEV mandates) that a state had adopted at least two 
    years before the effective date of opt-out and, in other states, would 
    have to comply with all applicable federal standards that would apply 
    in the absence of National LEV. Manufacturers would not have to comply 
    with any ZEV mandates (except those that were unaffected by National 
    LEV) until the model year that would start two years after the date EPA 
    received the manufacturer's opt out. Manufacturers that did not opt out 
    would continue to be subject to all National LEV requirements for 
    vehicles sold outside of the violating state and, in the violating 
    state, would be allowed, under the National LEV regulations, to sell 
    vehicles meeting Tier 1 tailpipe standards for two years following the 
    state violation and to exclude those vehicles from the NMOG fleet 
    average. However, if the violating state reversed the action that broke 
    its commitment, vehicles sold in the violating state would count 
    towards the NLEV NMOG fleet average as of the model year named for the 
    second calendar year after the violating state took the final action 
    reversing the action that broke its commitment or as of the model year 
    named for the fourth calendar year following the calendar year in which 
    the violating state took the final action breaking its commitment, 
    whichever is later.30 To the extent these provisions would 
    give a manufacturer less than the two-years lead time set forth in 
    section 177, the manufacturer would waive that protection by opting 
    into National LEV and then setting an effective date in its opt-out 
    notification that was earlier than the two-years lead time would 
    provide. To the extent these provisions would give a manufacturer more 
    than the two-years lead time set forth in section 177, by opting into 
    National LEV the OTC States agree to provide the additional time.
    ---------------------------------------------------------------------------
    
        \30\ For example, if the violating action occurred in 1999 and 
    the violating state reversed that action in 2000, vehicles sold in 
    that state would count towards the NLEV NMOG fleet average starting 
    with MY2003 (the model year named for the fourth calendar year 
    following the calendar year in which the violating action occurred). 
    If the violating action occurred in 1999 and was reversed in 2002, 
    vehicles in that state would count towards the NLEV NMOG fleet 
    average starting with MY2004 (the model year named for the second 
    calendar year after which the violating action was reversed).
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    2. OTC State Fails to Submit SIP Revision Committing to National LEV
        The second way in which an OTC State could violate its commitment 
    to National LEV would be to fail to submit a SIP revision to EPA 
    containing the state's regulatory commitment to the program. The 
    consequences of this violation differ slightly from a situation where a 
    state does submit such a SIP revision, receives EPA approval for it, 
    but then violates the commitment by attempting to remove National LEV 
    as a compliance alternative. Failure to submit a SIP revision would not 
    necessarily indicate that the state was attempting to impose a 
    compliance obligation on the manufacturers contrary to the terms of the 
    fundamental agreement underlying the voluntary National LEV program. 
    Consequently, if manufacturers did not choose to opt out of National 
    LEV, they would continue to be subject to all the National LEV 
    requirements for vehicles sold both within and outside of the violating 
    state, and the National LEV program would continue. However, the 
    portion of the OTC State commitments to be contained in the SIP 
    revisions is critical to the long-term enforceability of the state 
    commitments, so EPA believes it is important to allow the manufacturers 
    to opt out of National LEV if a state fails to submit a SIP revision. 
    This will provide incentive for OTC States to submit their National LEV 
    SIP revisions and provide manufacturers recourse in the event of a 
    state failure to do so. This offramp is addressed in 40 CFR 86.1707(f).
        As under the previous scenario, there would be no time limit for 
    manufacturers to exercise their right to opt out of National LEV if an 
    OTC State had missed the deadline for its National LEV SIP revision and 
    had not yet submitted such a SIP revision. Once the state submitted its 
    SIP revision, even if after the deadline, manufacturers would no longer 
    have the opportunity to decide to opt out of National LEV. Unlike the 
    previous scenario, a state that had missed the deadline for its SIP 
    submission would have a limited opportunity to cure the violation. For 
    the first six months from the deadline for the SIP submission, 
    manufacturers would only be able to opt out conditioned on the state 
    not submitting a SIP revision within six months of the initial 
    deadline. If the state submitted the revision within that six-month 
    grace period, any opt-outs based on that violation would be invalidated 
    and would not come into effect.
        The manufacturers commented that the National LEV regulations 
    should not provide a six-month grace period for states to submit their 
    SIP revisions beyond the one-year (or for a few states, eighteen-month) 
    period provided for the SIP submissions because the deadline provides 
    states adequate time to submit their SIP revisions. EPA believes this 
    limited opportunity to cure is appropriate here. While the timeframes 
    provided for the OTC States to submit their SIP revisions are feasible, 
    they are very tight and do not give much leeway for delays that may 
    occur in the state regulatory processes. Moreover, the MOUs initialed 
    by the OTC and the manufacturers' associations provided that OTC States 
    would have two years to submit their SIP revisions committing to 
    National LEV. Even if they needed to take advantage of the grace 
    period, the deadline for most of the OTC States to submit their SIP 
    revisions to EPA would still be sooner than provided under the 
    initialed MOUs and no state would have a deadline any later than the 
    MOUs provided. In light of this, together with the fact that failure to 
    submit this SIP revision would not pose the risk of any immediate 
    change in the manufacturers' compliance obligations, it is reasonable 
    to provide a limited grace period for OTC States to submit their SIP 
    revisions without jeopardizing the benefits of the National LEV 
    program.
        After the six-month grace period, the state's submission of a SIP 
    revision would not negate a manufacturer's opt-out that EPA had already 
    received, even if the manufacturer's opt-out had not yet become 
    effective. However, no manufacturer would be able to opt out after the 
    state submitted the SIP revision, no matter how late the state was. As 
    under the previous scenario, whether or not an OTC State has failed to 
    submit a SIP revision by a given date and thereby provided a basis for 
    an opt-out is a very clear cut issue. Consequently, EPA is not 
    providing for an EPA determination of the validity of an opt-out based 
    on this violation.
        If a manufacturer opts out it may set the effective date of its 
    opt-out no earlier than MY2000 (or MY2001 if the violating state is the 
    District of Columbia, New Hampshire, Delaware or Virginia) or the next 
    model year after EPA's receipt of the opt-out, whichever is 
    later.31 If a manufacturer opts out of
    
    [[Page 944]]
    
    National LEV, in the violating state, the National LEV regulations 
    would allow the manufacturer to meet Tier 1 tailpipe standards and 
    would not require those vehicles to be included in the fleet average 
    NMOG calculations. These special provisions for vehicles sold in the 
    violating state generally would start with the next model year after 
    EPA receives the manufacturer's opt-out notification (e.g., MY2000 for 
    a manufacturer that opts out in calendar year 1999) and continue until 
    the effective date set in the opt-out notice.32 As under the 
    scenario above, the violating state would not receive SIP credits for 
    emissions reductions from vehicles meeting anything more stringent than 
    the Tier 1 tailpipe standards while those standards apply. Once the 
    manufacturer's opt-out had become effective, the manufacturer would be 
    subject to a Section 177 Program in the violating state if the two-year 
    lead time requirement of section 177 had been met.
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        \31\ If, however, an OTC State took a legitimate offramp as 
    discussed below, a manufacturer could not use a delayed effective 
    date of opt out to continue to comply with National LEV in a state 
    that had opted out after the state opt-out became effective. As 
    discussed below in section VI.D an OTC State legitimately opting out 
    of National LEV is required to provide manufacturers at least two-
    years lead time.
        \32\ However, these special provisions would start no earlier 
    than MY2001 if the District of Columbia, New Hampshire, Delaware or 
    Virginia were the violating state and no earlier than MY2000 if 
    another OTC State were the violating state.
    ---------------------------------------------------------------------------
    
        If a manufacturer opted out of National LEV, in non-violating 
    states it would continue to meet all National LEV requirements until 
    the effective date of its opt out. For vehicles sold in the 
    nonviolating states, once the opt-out became effective the manufacturer 
    would be subject to any backstop Section 177 Programs for which the 
    two-year lead time requirement of section 177 had been met (running 
    from the date the state adopted the backstop program), or would be 
    subject to Tier 1 requirements in states without such programs. 
    Manufacturers would not have to comply with any ZEV mandates (except 
    those that were unaffected by National LEV) until the model year that 
    would start two years after the date EPA received the manufacturer's 
    opt-out notification. To the extent that these regulations would 
    provide a manufacturer with less than the two-year lead time set forth 
    in section 177, the manufacturer waives that protection by opting into 
    National LEV and then setting an effective date in its opt-out 
    notification. To the extent that these provisions would provide 
    manufacturers more than the two-years lead time set forth in Section 
    177, by opting into National LEV the OTC States agree to provide the 
    additional time.
    3. OTC State Submits Inadequate SIP Revision Committing to National LEV
        A third way in which an OTC State could violate its commitment to 
    National LEV would be to submit a SIP revision that did not meet the 
    requirements for a National LEV SIP revision, and thus did not 
    adequately commit the state to the National LEV program. Today's rule, 
    40 CFR 86.1707(g), maintains the principle EPA had proposed, 
    specifically that a violation of this commitment would allow 
    manufacturers to opt out. However, today's rule takes a somewhat 
    different approach towards when a manufacturer could opt out based on 
    an inadequate SIP revision.
        EPA proposed that manufacturers would be able to opt out if EPA 
    disapproved a National LEV SIP revision, and either the state failed to 
    submit a corrected SIP revision within one year of EPA's disapproval, 
    or the state submitted a modified SIP revision and EPA subsequently 
    disapproved the revision. Under the proposal, the date of the violation 
    that would allow a manufacturer to opt out of National LEV would be 
    either the state's failure to submit a National LEV SIP revision 
    committing to National LEV within one year of EPA's disapproval of its 
    initial SIP revision, or publication of EPA's second disapproval. EPA 
    also considered and took comment on several alternative approaches.
        The auto manufacturers' comments supported their right to opt out 
    if an OTC State were to submit an inadequate National LEV SIP 
    submission, but opposed the proposed process and timing for using such 
    an offramp. The manufacturers believe that the proposal did not provide 
    them a real opportunity to opt out in a timely fashion if a SIP 
    submission did not adequately commit an OTC State to National LEV. The 
    manufacturers calculated that EPA's proposal might not allow them to 
    opt out until MY2004 if a state submitted an inadequate SIP. Given the 
    expected duration of National LEV, the autos felt this effectively 
    prevented them from opting out if a state were to fail to submit an 
    adequate SIP revision.
        The SIP revisions are a critical component of the OTC States' 
    commitments to National LEV. The auto manufacturers should have a right 
    to opt out of the program if an OTC State that has opted into National 
    LEV does not follow through on its commitment. EPA agrees with the 
    manufacturers that the proposal did not provide them an adequate or 
    realistic opportunity to ensure that OTC States submitted adequate SIP 
    revisions. Thus, the FRM takes a slightly different approach than EPA 
    proposed.
        Today's rule allows manufacturers to opt out of National LEV if an 
    OTC State has not submitted an adequate SIP revision and either EPA has 
    taken final action on the state's submission finding that it did not 
    meet the requirements for a National LEV SIP revision or at least 12 
    months has passed since the state submitted its National LEV SIP 
    submission to EPA and EPA has not approved it as meeting the 
    requirements for a National LEV SIP revision. By prohibiting 
    manufacturers from opting out until after EPA has had one year to take 
    action on a SIP submission, the FRM respects EPA's role in evaluating 
    and approving SIPS, as delegated by Congress under section 110(k) of 
    the Act. By allowing manufacturers to opt out immediately if EPA 
    disapproves a SIP submission or if EPA fails to act within one year of 
    receiving the submission, it gives manufacturers a real opportunity to 
    opt out in a timely fashion if a SIP submission is inadequate. This 
    should provide additional incentive for OTC States to send in 
    submissions that meet the requirements for adequate National LEV SIP 
    revisions and thereby increase the stability of the program.
        As with the other types of state violations, there is no deadline 
    for manufacturers to opt out based on this offramp. Also, there would 
    be no opportunity for an OTC State to cure the violation with respect 
    to a manufacturer that had already opted out, although manufacturers 
    that had not opted out could no longer do so once EPA had taken final 
    action finding the State's submission met all the requirements for a 
    National SIP revision. The action allowing opt out is very clear, and 
    hence the regulations do not provide for an EPA determination of the 
    validity of an opt-out based on this type of violation.
        Again consistent with the previous scenarios, if a manufacturer 
    opts out it may set the effective date of its opt-out as early as the 
    next model year or any model year thereafter.\33\ Manufacturers' 
    obligations under National LEV and state Section 177 Programs would be 
    identical to those described if a state failed to submit a SIP 
    revision.
    ---------------------------------------------------------------------------
    
        \33\ If, however, an OTC State took a legitimate offramp as 
    discussed below, a manufacturer could not use a delayed effective 
    date of opt out to continue to comply with National LEV in a state 
    that had opted out after the state opt-out became effective. As 
    discussed below in section VI.D an OTC State legitimately opting out 
    of National LEV is required to provide manufacturers at least two 
    years lead time.
    
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    [[Page 945]]
    
    4. OTC State Without an Existing ZEV Mandate Adopts a Backstop ZEV 
    Mandate
        OTC States without ZEV mandates will also state in their opt-ins 
    that they do not intend to adopt a ZEV mandate that would be effective 
    during the state's commitment to National LEV. EPA took comment on 
    whether auto manufacturers should be able to opt out if an OTC State 
    without an existing ZEV mandate acted contrary to its stated intent and 
    adopted a backstop ZEV mandate (i.e., a ZEV mandate that allows 
    National LEV as a compliance alternative) with an effective date during 
    the state's commitment to National LEV.\34\ Today's final rule, 40 CFR 
    86.1707(h), provides such an offramp for manufacturers. EPA believes 
    this is appropriate given the differing positions of the manufacturers 
    (who wanted the OTC States to agree that they would not adopt a ZEV 
    mandate) and the OTC States (who were willing to state their current 
    intent not to adopt a ZEV mandate). It is also appropriate given that 
    the OTC States without existing ZEV mandates have little incentive to 
    adopt backstop ZEV mandates since they have agreed that a manufacturer 
    would not have to comply with a backstop ZEV mandate until the later of 
    the end of the OTC State's commitment to National LEV (MY2006 or 
    MY2004, depending upon EPA's issuance of Tier 2 standards) or two years 
    after either the manufacturer or the OTC State opts out of National 
    LEV.
    ---------------------------------------------------------------------------
    
        \34\ If an OTC State without an existing ZEV mandate adopts a 
    ZEV mandate that does not allow National LEV as a compliance 
    alternative, the opt-out provisions discussed in Section VI.A.1 
    above apply.
    ---------------------------------------------------------------------------
    
        Sec. 86.1707(h) allows manufacturers 35 to opt out of 
    National LEV if an OTC State without an existing ZEV mandate takes 
    final action adopting a backstop ZEV mandate that would become 
    effective during the state's commitment to National LEV. This offramp 
    does not allow manufacturers to opt out if a state adopts a ZEV mandate 
    that could not come into effect until the end of the state's commitment 
    (i.e., until MY2006 or MY2004, depending on EPA's issuance of Tier 2 
    standards). Adoption of a backstop ZEV mandate would not impose an 
    immediate compliance obligation on auto manufacturers, so EPA has 
    structured the offramp and its consequences to be similar to those for 
    an OTC State's failure to submit its National LEV SIP revision on time. 
    Consequently, if manufacturers did not choose to opt out of National 
    LEV, they would continue to be subject to all the National LEV 
    requirements for vehicles sold both within and outside of the violating 
    state, and the National LEV program would continue.
    ---------------------------------------------------------------------------
    
        \35\ Only those manufacturers that are large enough that they 
    would be subject to the ZEV mandate if it comes into effect could 
    opt out based on an OTC State's adoption of a ZEV mandate.
    ---------------------------------------------------------------------------
    
        As for other offramps based on OTC State actions, there would be no 
    time limit for manufacturers to exercise their right to opt out of 
    National LEV if an OTC State without an existing ZEV mandate adopted a 
    backstop ZEV mandate. Final action reversing the violating state's 
    adoption of a backstop ZEV mandate would not negate a manufacturer's 
    opt-out that EPA had already received, even if the manufacturer's opt-
    out had not yet become effective. However, if the violating state were 
    to take final action reversing itself and deleting the backstop ZEV 
    mandate, no manufacturer would be able to opt out after such final 
    action. ``Final action'' shall have the same meaning here as discussed 
    above in Section VI.A.1. EPA is not providing for an EPA determination 
    of the validity of an opt-out under this provision because it should be 
    very clear cut whether an OTC State has adopted a backstop ZEV mandate.
        If a manufacturer opts out, it may set the effective date of its 
    opt-out as early as the next model year after EPA's receipt of the opt-
    out notification.36 If a manufacturer opts out of National 
    LEV, in the violating state, the National LEV regulations would allow 
    the manufacturer to meet Tier 1 tailpipe standards and would not 
    require those vehicles to be included in the fleet average NMOG 
    calculations. These special provisions for vehicles sold in the 
    violating state would start with the next model year after EPA receives 
    the manufacturer's opt-out (e.g., MY2000 for a manufacturer that opts 
    out in calendar year 1999) and continue until the effective date set in 
    the opt-out notice. As under the scenario above, the violating state 
    would not receive SIP credits for emissions reductions from vehicles 
    meeting anything more stringent than the Tier 1 tailpipe standards 
    while those standards apply. Once the manufacturer's opt-out had become 
    effective, the manufacturer would be subject to a Section 177 Program 
    in the violating state if the two-year lead time requirement of section 
    177 had been met.
    ---------------------------------------------------------------------------
    
        \36\ If, however, an OTC State took a legitimate offramp as 
    discussed below, a manufacturer could not use a delayed effective 
    date of opt out to continue to comply with National LEV in a state 
    that had opted out after the state opt-out became effective. As 
    discussed below in section VI.D an OTC State legitimately opting out 
    of National LEV is required to provide manufacturers at least two 
    years of lead time.
    ---------------------------------------------------------------------------
    
        If a manufacturer opted out of National LEV, in non-violating 
    states it would continue to meet all National LEV requirements until 
    the effective date of its opt out. For vehicles sold in the 
    nonviolating states, once the opt-out became effective the manufacturer 
    would be subject to any backstop Section 177 Programs for which the 
    two-year lead time requirement of section 177 had been met (running 
    from the date the state adopted the backstop program), or would be 
    subject to Tier 1 requirements in states without such programs. 
    Manufacturers would not have to comply with any ZEV mandates (except 
    those that were unaffected by National LEV) until the model year that 
    would start two years after the date EPA received the manufacturer's 
    opt-out notification. To the extent that these regulations would 
    provide a manufacturer with less than the two-year lead time set forth 
    in section 177, the manufacturer waives that protection by opting into 
    National LEV and then setting an effective date in its opt-out 
    notification. To the extent that these provisions would give 
    manufacturers more than the two-years lead time set forth in section 
    177, by opting into National LEV the OTC States agree to provide the 
    additional time.
    
    B. Offramp for Manufacturers if OTC State or Manufacturer Legitimately 
    Opts Out of National LEV
    
        Following the general principle that parties should be able to exit 
    National LEV if there is a significant change in the assumptions that 
    underlay their decision to opt in initially, 40 CFR 86.1707(j) 
    finalizes EPA's proposal that a manufacturer also could opt out if an 
    OTC State or another manufacturer were to opt out of National LEV 
    legitimately.37 This offramp could be used within 30 days of 
    EPA's receipt of an OTC State or a manufacturer opt-out. The 
    manufacturer could set an effective date for its opt-out beginning the 
    next model year after the date of the manufacturer's opt-out, or any 
    model year thereafter. EPA would not determine the validity of opt-out 
    under this offramp unless EPA is to determine the validity of the 
    initial opt-out.
    
    [[Page 946]]
    
    Manufacturers' obligations under National LEV and state Section 177 
    Programs would be identical to those described if a state failed to 
    submit a SIP revision, except that no state would be a violating state. 
    EPA received no comments on this provision.
    ---------------------------------------------------------------------------
    
        \37\ The validity of any opt-out from National LEV would depend 
    in part on whether the underlying condition allowing opt out has 
    actually occurred. Where the initial OTC State or manufacturer's 
    opt-out was invalid, it would not provide an offramp for another 
    manufacturer to opt out of National LEV. Thus, throughout this 
    notice when EPA refers to an initial opt-out as the condition that 
    allows another opt-out, it refers only to valid initial opt-outs.
    ---------------------------------------------------------------------------
    
    C. Offramp for Manufacturers for EPA Failure to Consider In-Use Fuel 
    Issues
    
        Believing that the effects of fuel sulfur were not adequately 
    addressed by EPA in the National LEV program, the auto manufacturers 
    recommended in June, 1997, that National LEV should include an offramp 
    for manufacturers related to in-use fuels issues and that they should 
    be allowed to exit the National LEV program if EPA were to act (or fail 
    to act) in a specified manner to resolve specific sulfur-related 
    issues. Such an offramp would alleviate their concern that the sulfur 
    levels of in-use fuels outside California may affect the on-board 
    diagnostic (OBD) systems and tailpipe emissions of National LEV 
    vehicles. The manufacturers outlined six different conditions related 
    to EPA actions (or lack of action) on these issues that they believe 
    should allow them to opt out of National LEV. In the SNPRM, EPA 
    proposed an additional offramp that took into account three of the six 
    conditions advanced by manufacturers and rejected the remaining three. 
    (A complete discussion of these six conditions and EPA's rationale for 
    selecting only three can be found in the SNPRM, 62 FR at 44768-44771.) 
    The proposed offramp was structured such that manufacturers could opt 
    out of National LEV only if EPA failed to consider certain vehicle 
    modifications, on-board diagnostic control systems, or preconditioning 
    of vehicles when requested to do so by a manufacturer as a result of an 
    alleged effect of fuel with high sulfur levels. Today's final rule 
    incorporates this offramp as it was proposed.
        EPA recognizes that this remains an important issue for the 
    manufacturers and other interested parties, and 40 CFR 86.1707(i) sets 
    forth a process to allow potential problems related to potential fuel 
    sulfur effects on emissions performance of National LEV vehicles to be 
    addressed within the context of National LEV as more information 
    becomes available. These problems will be addressed on a case-by-case 
    basis. EPA will respond to a manufacturer's request, supported by data, 
    for appropriate relief for a specific engine family or families 
    adversely affected by sulfur in a manner covered by one of the 
    conditions incorporated into the National LEV regulations for the fuel 
    sulfur offramp.
        EPA also recognizes that the effects of sulfur on emission control 
    systems is an issue that raises concerns beyond the context of the 
    National LEV program and is being addressed in numerous other actions. 
    These include testing being done to support EPA's Tier 2 Study and the 
    Ozone Transport Assessment Group's recommendation to EPA to explore 
    reducing fuel sulfur levels. EPA is working with the various 
    stakeholders in developing and analyzing data to quantify any sulfur 
    effects on current and future technology vehicles. EPA has said that in 
    appropriate instances, EPA will address sulfur effects on specific 
    mobile source programs. In March, 1997, EPA released a paper entitled 
    ``OBD & Sulfur White Paper: Sulfur's Effect on the OBD Catalyst Monitor 
    on Low Emission Vehicles.'' This paper summarized the sulfur concerns 
    and the available data, and outlined EPA's approach to resolving OBD/
    sulfur issues on a case-by-case basis.38 The fundamental 
    suggested approach of addressing these issues on a case-by-case basis 
    remains EPA's expected approach. The offramp related to fuel sulfur 
    effects in today's final rule is entirely consistent with the approach 
    outlined in EPA's revised paper.
    ---------------------------------------------------------------------------
    
        \38\ OBD and Sulfur White Paper, March 1997 (Docket A-95-26, IV-
    B-06). This paper has been revised to address comments EPA received 
    on the March, 1997 paper. A copy is included in the docket for this 
    rule (A-95-26, VII-J-02).
    ---------------------------------------------------------------------------
    
        Today's final rule contains a fuel sulfur offramp identical to that 
    proposed in the SNPRM. This offramp could be triggered under the three 
    following conditions:
        (1) If, upon a written request from a manufacturer in relation to 
    the certification of an OBD catalyst monitor system, EPA declines to 
    consider the use of the system because it indicates sulfur-induced 
    passes when exposed to high-sulfur gasoline, even though it functions 
    properly on low-sulfur gasoline.
        (2) If, upon a written request from a manufacturer, EPA declines to 
    consider, on a case-by-case basis, the manufacturer's suggested 
    modifications to vehicles that exhibit sulfur-induced malfunction 
    indicator light (MIL) illuminations due to high-sulfur gasoline so as 
    to eliminate the sulfur-induced MIL.
        (3) If, upon a written request from a manufacturer, EPA declines to 
    consider, on a case-by-case basis, prior to in-use testing, pre-
    conditioning procedures designed solely to remove the effects of high 
    sulfur from currently available gasoline.
        EPA has defined a process for manufacturers to opt out of National 
    LEV if one of the conditions described above were to occur. A 
    manufacturer must send a request to EPA in writing identifying the 
    particular problem at issue, demonstrating that it is due to in-use 
    fuel sulfur levels, requesting that EPA consider taking a specified 
    action in response, and demonstrating the emissions impact of the 
    requested change. For some changes, engineering judgement may be 
    sufficient to demonstrate the emissions impact. The Agency would have 
    60 days to respond to the manufacturer's request in writing, stating 
    the Agency's decision and explaining the basis for the decision. If EPA 
    were to fail to respond in this manner in the timeframe allotted, 
    manufacturers would have 180 days after the deadline for the EPA 
    response to decide to opt out of National LEV. Once EPA responds to the 
    manufacturer's request, even if after the 60-day deadline, a 
    manufacturer that had not yet opted out based on this offramp would no 
    longer be able to do so, although if EPA had already received a 
    manufacturer's opt-out, that opt-out would be unaffected by EPA's 
    subsequent response. Only the manufacturer that sent the initial 
    request to EPA would be able to opt out if EPA failed to respond.
        Consistent with opt-outs based on other offramps, a manufacturer 
    that opts out based on this offramp must continue to comply with 
    National LEV until the opt-out becomes effective. The manufacturer may 
    set the effective date of its opt-out as early as the next model year 
    or any model year thereafter.39 After the effective date of 
    its opt-out, the manufacturer would be subject to any backstop Section 
    177 Programs (except for ZEV mandates) provided that at least two-years 
    lead time (as provided in section 177) had passed since the adoption of 
    the state's Section 177 Program, or would be subject to Tier 1 
    requirements in states without such backstops. Other than those ZEV 
    mandates that would be unaffected by the National LEV rogram (i.e., 
    existing ZEV mandates), if a manufacturer opts out, it would not be 
    subject to any other ZEV mandates until two years of lead time has 
    passed, which would run from the date the manufacturer opts out of 
    National LEV and would be measured according to the section 177 
    implementing regulations.
    ---------------------------------------------------------------------------
    
        \39\ The next model year would be the model year named for 
    calendar year after which EPA received the opt-out notification.
    ---------------------------------------------------------------------------
    
        Several commenters highlighted this offramp as an area of some 
    concern.
    
    [[Page 947]]
    
    These comments and EPA's responses are detailed in the Response to 
    Comments document. In general, the auto manufacturers felt that the 
    proposed offramp did not go far enough to protect their interests. They 
    would have preferred that the regulations allow a manufacturer to opt 
    out if EPA did not approve the manufacturer's suggested solution to an 
    alleged problem if the manufacturer felt corrective action was 
    justified. EPA's proposed (and final) regulations instead require EPA 
    to consider allowing corrective action based on a request from a 
    manufacturer accompanied by a persuasive demonstration that a problem 
    does indeed exist. EPA believes that following the manufacturers' 
    approach would destabilize the program by putting EPA in what could be 
    an untenable position of either giving a manufacturer the ability to 
    opt out or allowing the manufacturer to dictate a substantive outcome 
    which EPA did not believe was warranted.
        Several state government commenters saw the addition of this 
    offramp as a new issue that had not arisen in prior discussions and 
    that had potentially destabilizing impacts on the National LEV program. 
    The American Petroleum Institute likewise commented that it did not 
    support this offramp. Contrary to some commenters' concerns, this 
    offramp cannot be used by the manufacturers to dictate a particular 
    result, nor does it destabilize the National LEV program. The offramp 
    makes it clear that EPA intends to follow through on its commitment in 
    the OBD & Sulfur Status Report to look at potential fuel sulfur effects 
    on a case-by-case basis. The offramp does not expand whatever right to 
    substantive judicial review a manufacturer would otherwise have of an 
    EPA decision related to potential fuel sulfur effects. Rather, to avoid 
    providing manufacturers an opportunity to opt out of the program, this 
    offramp requires EPA to provide a written response to a manufacturers' 
    request. Some commenters expressed the concern that this offramp would 
    require EPA to act in the absence of necessary information. EPA does 
    not read the provision that way. Rather, if a manufacturer submits 
    insufficient information (perhaps by failing to characterize the 
    potential fuel sulfur effect adequately or to provide adequate 
    information regarding the effects of the requested change), EPA could 
    deny the request or ask the manufacturer to submit additional 
    information without triggering an offramp, provided that EPA explained 
    its response in writing. EPA does not believe the fuel sulfur offramp 
    destabilizes the National LEV program given that it sets up a process 
    rather than requiring a substantive result and given that EPA does not 
    foresee any problem complying with the process.
    
    D. Offramps for OTC States
    
        In light of the practically and legally binding commitments that 
    the OTC States would make to the National LEV program, this Final Rule 
    also identifies the limited circumstances under which the OTC States 
    would no longer be bound by those commitments. There are two 
    circumstances in which an OTC State could opt out of National LEV: (1) 
    if a manufacturer were to opt out of National LEV; or (2) if, based on 
    a periodic equivalency determination, EPA were to find that certain 
    circumstances had changed that would have changed EPA's initial 
    determination that National LEV would produce emissions reductions 
    equivalent to OTC State Section 177 Programs. The first offramp, found 
    in 40 CFR 86.1707(e) through (j), is being finalized as proposed. The 
    second offramp, found in 40 CFR 86.1707(k), has been modified somewhat 
    from the proposal, as described below in more detail. If an OTC State 
    were to take an identified legitimate offramp from National LEV, it 
    would no longer be bound by any commitments that it made to the program 
    in its initial opt-in package, other than its commitment to follow the 
    National LEV regulations to transition from National LEV to a state 
    Section 177 Program. An OTC State that was already in violation of its 
    National LEV commitments would not be able legitimately to opt out of 
    National LEV based on a manufacturer's opt-out.
        To opt out of National LEV, the state official that signed the 
    commissioner's letter in that state would send EPA an opt-out 
    notification letter. The letter would state that the OTC State was 
    opting out of National LEV and specify the condition allowing the state 
    to opt out. The date of the state opt-out would be the date that EPA 
    received the opt-out letter, but there would be a two-year transition 
    period before the state opt-out would become effective and the state 
    could require compliance with a Section 177 Program or ZEV mandate (in 
    a state without an existing ZEV mandate) without allowing National LEV 
    as a compliance alternative. Whether an opt-out letter alone would 
    itself remove National LEV as a compliance alternative as of the 
    effective date of the opt-out depends on how the state regulations are 
    written. In opting into National LEV the state could structure its 
    regulations and SIP to provide that National LEV would not be an 
    alternative to the state's Section 177 Program if the state had opted 
    out of National LEV pursuant to the National LEV regulations and the 
    opt-out had become effective.
    1. Manufacturer Opt-Out
        As proposed, an OTC State would be able to opt out of National LEV 
    without violating its commitment if a manufacturer opted out of 
    National LEV under one of the identified offramps for 
    manufacturers.40 All parties would have made the choice to 
    opt into National LEV with an understanding about the manufacturers and 
    states that would be subject to the program. If those fundamental 
    assumptions were to change, the parties to the voluntary program should 
    have the opportunity to reevaluate their commitments and choose to opt 
    out. Some OTC States have indicated, for example, that they believe it 
    would not be feasible in their states to have some manufacturers 
    subject to National LEV while others that had opted out of National LEV 
    were subject to Section 177 Program requirements.
    ---------------------------------------------------------------------------
    
        \40\ The condition allowing an OTC State to opt out would only 
    arise if the initial manufacturers' opt-out were valid. See n. 37.
    ---------------------------------------------------------------------------
    
        If a manufacturer opted out, OTC States would have a three-month 
    period to submit an opt-out letter. The start of the three-month period 
    would depend on the reason the manufacturer opted out. If a 
    manufacturer were to opt out because of state action or inaction, or 
    because of EPA's failure to consider a manufacturer's request related 
    to effects of in-use fuels, the three-month period would start on the 
    date EPA received the manufacturer's opt-out notification.41 
    For a manufacturer's opt-out based on a change to a Stable Standard, 
    the three-month period would start on the date of EPA's finding that 
    the opt-out was valid or the date of a final judicial ruling that a 
    disputed opt-out was valid. If a state did not opt out within that 
    three-month period, the opportunity to opt out based on that 
    manufacturer action would no longer be available.
    ---------------------------------------------------------------------------
    
        \41\ However, if a manufacturer were to opt out because a state 
    failed to submit a SIP revision by the applicable deadline and the 
    manufacturer submitted the opt-out notification within six months of 
    the applicable deadline for the SIP revision, the manufacturer's 
    opt-out would not be final until the end of that six-month period. 
    That date (not the date of the manufacturer's opt-out) would start 
    the three-month period for state opt out.
    ---------------------------------------------------------------------------
    
        The state opt-out could not become effective until the state had 
    provided manufacturers with the two-year lead time set forth in section 
    177, with the two-year lead time to start on the date
    
    [[Page 948]]
    
    that EPA received that state's opt-out letter. Manufacturers commented 
    that for manufacturers that had not opted out of National LEV, states 
    that have opted out should provide four, rather than two, years of lead 
    time. As discussed above in section VI.A.1, section 177 does not 
    require states to provide manufacturers four years of lead time from 
    the date that manufacturers are notified that the state will no longer 
    accept National LEV as a compliance alternative to a state Section 177 
    Program. Several commenters opposed providing four years of lead time 
    under any circumstances and agreed that section 177 does not provide 
    such lead time. Moreover, the MOUs initialled by the OTC and the 
    manufacturers' associations provided only two model years of lead time 
    before a state election to no longer be bound by its obligations under 
    the MOU would become effective. Thus, EPA believes it is appropriate to 
    finalize the proposed approach, which provides for two years of lead 
    time before a state opt-out becomes effective.
        Until the OTC State's opt-out became effective, manufacturers that 
    had not opted out of National LEV or whose opt-outs had not yet become 
    effective would continue to be subject to all the National LEV 
    requirements for vehicles sold in that state. Manufacturers whose opt-
    outs had already become effective would not be affected by the state 
    opt-out. Once the state opt-out became effective, all manufacturers 
    would be subject to the state's Section 177 Program, if it had been 
    adopted at least two years previously.42 As the existence of 
    a manufacturer opt-out as the basis for the state opt-out is a simple 
    factual determination, the rule does not provide for EPA to evaluate 
    the validity of a state opt-out before it could become effective.
    ---------------------------------------------------------------------------
    
        \42\ This is true even for a manufacturer that had opted out and 
    set an effective date for its opt-out that was later than the 
    effective date of the state's opt-out.
    ---------------------------------------------------------------------------
    
    2. Periodic Equivalency Determination
        EPA had proposed that an OTC State could opt out of National LEV if 
    EPA were to change a Stable Standard in a way that made National LEV 
    less stringent and, if the change had been known at the start of 
    National LEV, it would have changed EPA's initial determination that 
    National LEV would produce emissions reductions at least equivalent to 
    the adopted OTC State Section 177 Programs. In today's Final Rule, EPA 
    is departing somewhat from the proposal. Today's rule is very similar 
    to the proposal regarding how subsequent equivalency determinations 
    would be made, but takes a different approach regarding when they would 
    be made. Today's rule allows an OTC State to request an equivalency 
    determination at any time during the state's commitment to National 
    LEV, rather than limiting states' ability to request such a 
    determination to those times when EPA changes a Stable Standard. This 
    offramp for OTC States is comparable to the manufacturers' offramp if 
    EPA makes certain types of changes to Stable Standards that make the 
    Standards more stringent.
        In section IV above, EPA discussed its determination that National 
    LEV would produce equivalent or greater emissions reductions than the 
    alternative of adopted OTC State Section 177 Programs. In the modeling, 
    EPA assumed that, in the absence of National LEV, Section 177 Programs 
    would be in place in those OTC States that currently have adopted such 
    programs (including backstop programs) and that, in all other states 
    (except California) Tier 1 standards would apply through MY2004 and 
    Tier 2 standards equivalent to National LEV would apply thereafter. 
    Today's rule allows an OTC State that is in the National LEV program to 
    request EPA to reevaluate whether National LEV is still equivalent to 
    the alternative approach of OTC State Section 177 Programs. Within six 
    months of receiving the request, EPA is to conduct such a 
    determination.
        As proposed, in reevaluating equivalency, EPA would use the same 
    model and inputs as it used in the initial equivalency 
    determination.43 EPA would modify the modeling only to 
    reflect (1) the effect of changes in EPA regulations governing new 
    motor vehicles and implementation of such regulations (to the extent 
    implementation is reflected in the model), and (2) the effect of having 
    Section 177 Programs (identical in stringency to the Section 177 
    Programs modeled in the initial equivalency determination) in any 
    additional OTC States that had adopted section 177 backstop programs 
    after the initial equivalency determination. In reevaluating 
    equivalency, EPA believes that the focus of the evaluation should be 
    the ongoing validity of the initial decision to opt into National LEV, 
    not whether the parties would make the same decision at the time of the 
    reevaluation based on then-current conditions. This is consistent with 
    the approach that the parties took to the periodic equivalency 
    evaluation in the initialed MOUs. At the time of their opt-ins, the 
    parties should not have anticipated that EPA would change its new motor 
    vehicle regulations in a way that would affect one of the basic 
    assumptions used to calculate the relative benefits of National LEV and 
    the alternative of OTC State Section 177 Programs. Thus, it is 
    appropriate to reevaluate the equivalency of the two approaches given 
    such a change, and provide the OTC States an opportunity to opt out of 
    National LEV if it is no longer equivalent to the alternative.
    ---------------------------------------------------------------------------
    
        \43\ Modeling assumptions that would remain unchanged from those 
    used in the initial equivalency determination include: assumptions 
    related to vehicle miles traveled, MOBILE5a model inputs, inspection 
    and maintenance programs, reformulated gasoline, and permanent 
    migration effects.
    ---------------------------------------------------------------------------
    
        As proposed, the FRM provides that any equivalency reevaluation 
    will include the effect of Section 177 Programs in any additional OTC 
    States that adopt Section 177 Programs after the initial equivalency 
    determination. This represents a compromise between the OTC States' and 
    manufacturers' positions. In making the initial equivalency 
    determination, EPA is comparing National LEV to the alternative of OTC 
    State Section 177 Programs. See section IV. As discussed above, EPA's 
    determination assumes that Section 177 Program requirements would apply 
    in those OTC States that currently have the programs (including 
    backstop programs) in their state law or regulations and that mandatory 
    federal standards would apply in the other OTC States. The OTC States 
    requested that EPA take a somewhat different approach to the initial 
    equivalency determination by assuming that Section 177 Programs would 
    also apply in particular OTC States that are currently in the process 
    of developing such regulations. For the initial determination, such a 
    change in the assumption about which OTC States have LEV programs would 
    have no effect on EPA's finding that National LEV would produce 
    emissions reductions at least equivalent to those that would be 
    produced by the alternative. EPA performed a sensitivity analysis for 
    the initial equivalency determination to analyze the effects of the 
    most optimistic assumptions regarding adoption of Section 177 Programs 
    by OTC States, which indicated that even with those assumptions 
    National LEV would still produce emissions reductions equivalent to or 
    greater than that alternative. However, given the OTC States' concern, 
    EPA believes it would be appropriate to modify the inputs to any 
    reevaluation to reflect the then-current reality in terms of which OTC 
    States had actually adopted Section 177 Programs. The modeling would
    
    [[Page 949]]
    
    continue to assume that all states with Section 177 Programs would have 
    the same requirements used in the initial equivalency modeling, as 
    discussed above. Thus, the reevaluation would not reflect any changes 
    in the states' legal authority under the CAA to adopt programs 
    subsequent to their decision to opt into National LEV, but it would 
    take into account subsequent actions taken by the OTC States based on 
    legal authority they had at the time of the decision.
        EPA does not believe it would be appropriate to include in the 
    reevaluation of equivalency the effects of other changes in 
    circumstances affecting emissions reductions under National LEV or the 
    alternative, such as changes to California's LEV program. At the time 
    of opt-in, all of the parties will be aware that circumstances might 
    change over the period that National LEV is in effect. For example, 
    California might modify its requirements during that time. In making 
    the decision to opt into National LEV and choose it over the 
    alternative for a given period of time, the parties will have to 
    evaluate the likelihood that any of the relevant circumstances would 
    change sufficiently to reverse their inclination to opt in. Thus, the 
    OTC States will have to consider the likelihood that California would 
    modify its CAL LEV requirements and the likely effect of such a 
    modification, and decide whether to commit to National LEV in lieu of a 
    state Section 177 Program that could include any subsequent changes to 
    CAL LEV. By opting in, the OTC States will have made the decision that 
    the possibility of those benefits is outweighed by the certainty of the 
    benefits from National LEV (if it goes into effect). The reevaluation 
    of equivalency should not allow parties to reconsider that initial 
    choice with the benefit of hindsight. National LEV will only come into 
    effect if the parties to the program commit to it for a specified 
    duration, and an EPA change to the underlying standards should not 
    become an opportunity to undermine that basic commitment.
        Several commenters disagreed with this approach, arguing that any 
    changes California makes to its LEV program should be reflected in any 
    future equivalency determinations, particularly since California is 
    contemplating tightening its LEV program. EPA believes that states 
    should take the possibility of future changes to the California LEV 
    program into account in deciding whether to opt in. As noted above, 
    given the uncertainties regarding changes to California's program and 
    the much greater benefits of National LEV as compared to OTC State 
    Section 177 Programs (based on the current CAL LEV program), EPA 
    believes it is reasonable and prudent for states to commit to keep 
    National LEV as a compliance alternative until MY2006. EPA recognizes 
    that this raises the possibility that OTC States might be foregoing 
    enforcement of a tighter California LEV program for a year or two. 
    However, for practical or legal reasons, states often have to make 
    regulatory choices without complete information and taking one 
    regulatory approach often precludes changing course in midstream even 
    if it turns out that another approach might have been better.
        Although today's rule generally adopts the approach to periodic 
    equivalency findings contained in the MOUs initialed by the OTC and the 
    auto manufacturers' trade associations, it does differ in one respect. 
    Whereas the MOUs provided for such findings every three years and upon 
    an OTC State's request, today's rule provides for such findings only 
    upon the request of an OTC State that is participating in National LEV. 
    There might not be a need for an equivalency finding every three years. 
    If there is a need, an OTC State can request one.
        If EPA were to find that National LEV was not equivalent to OTC 
    State Section 177 Programs, under today's rule, the OTC States would 
    have three months to opt out, running from the date that EPA found that 
    National LEV would no longer produce emissions reductions equivalent to 
    those that would be produced by OTC State Section 177 Programs. If a 
    state did not opt out within that three month period, the opportunity 
    to opt out based on that finding would no longer be available.
        Also consistent with the other state offramp, a state opt-out based 
    on a finding of inequivalency could not become effective for model 
    years (as defined in Subpart X) that commence prior to the date two 
    years after the date that EPA received the state's opt-out letter. If a 
    state took this offramp, the manufacturers' obligations would be 
    determined the same way as described in the preceding section (when an 
    OTC State opts out because a manufacturer opted out).
    
    E. Lead Time Under Section 177
    
        Sec. 86.1707's provisions discussed above incorporate and rely on 
    EPA's interpretation of section 177's requirements related to state 
    adoption of the CAL LEV program. Section 177 of the Act provides the 
    legal authority for states to adopt ``standards relating to the control 
    of emissions from new motor vehicles'' and governs the timing of 
    implementation of such requirements. It provides that a state may adopt 
    new motor vehicle standards only if they are identical to California 
    standards for a given model year for which EPA has granted a waiver, 
    and the state must ``adopt such standards at least two years before 
    commencement of such model year (as determined by regulation of the 
    Administrator).'' EPA has previously adopted regulations interpreting 
    this provision. See 40 CFR 85.2301 et seq. These regulations do not 
    adequately address the issue of when the two-year lead time starts for 
    backstop Section 177 Programs (i.e., a Section 177 Program that allows 
    National LEV as a compliance alternative) after National LEV has come 
    into effect.
        Today's final regulations address the issue of when under section 
    177 and EPA's implementing regulations the two-year lead time period 
    would start if, after National LEV came into effect, a state with a 
    backstop Section 177 Program were to delete National LEV as a 
    compliance alternative (either in violation of its commitment to 
    National LEV or legitimately by taking an offramp) or if a manufacturer 
    legitimately decided to opt out of National LEV. These regulations and 
    EPA's underlying interpretation of section 177 apply only in the 
    context of the National LEV program, and only in the special 
    circumstances that arise when a state has a backstop Section 177 
    Program that allows National LEV as a compliance alternative and 
    National LEV has gone into effect.
        The intent of the two-year lead time provision in section 177 is 
    obvious in the context of a state deleting National LEV as a compliance 
    alternative in violation of its commitment. If a state has a Section 
    177 Program (or a ZEV mandate) that allows National LEV as a compliance 
    alternative and National LEV is in effect, and then the state changes 
    those regulations to require compliance with the Section 177 Program or 
    ZEV mandate (and does so in a way that violates its commitment to 
    National LEV), then the two-year lead time required by section 177 
    would start to run when the revised regulations (or other state laws) 
    were adopted. Although the Section 177 Program (or ZEV mandate) was 
    previously on the books, it would have been a very different program 
    because it allowed National LEV as a compliance alternative. Deleting 
    National LEV as a compliance alternative once National LEV is in effect 
    is essentially the same as adopting a new Section 177 Program (or ZEV 
    mandate), and section 177
    
    [[Page 950]]
    
    prohibits states from enforcing a new program without providing at 
    least two-years lead time.
        The meaning of the two-year lead time provision in section 177 is 
    ambiguous in the context of a backstop Section 177 Program (or ZEV 
    mandate) where a state legitimately opts out of National LEV. There are 
    at least three possible ways to approach this provision in this 
    context. One possible approach is that the two-year lead time period 
    starts when the state adopts the backstop Section 177 Program (or ZEV 
    mandate). Under this interpretation, section 177 would require the 
    state to have adopted its backstop Section 177 Program (or ZEV mandate) 
    at least two years before the model year to which it applies. After the 
    two-year lead time had run from the date of adoption, the state could 
    remove National LEV as a compliance alternative and require immediate 
    compliance with the Section 177 Program (or ZEV mandate) at any time. 
    Another possible approach is that, if a manufacturer will need to 
    comply with a state Section 177 Program after National LEV has come 
    into effect, the two-year lead time runs from the date that the 
    manufacturer knew that it would need to comply with the state Section 
    177 Program rather than with National LEV. Several of the OTC States' 
    comments strongly supported the first approach, focusing on section 
    177's use of the word ``adopt.'' In addition, these commenters 
    expressed concern that the second approach, which EPA proposed, could 
    set a precedent for other reinterpretations to ``fit unique 
    circumstances.'' The comments stated that it would be inappropriate to 
    discourage a state from availing itself of a right granted by Congress, 
    and they stated that EPA's proposed interpretation is inconsistent with 
    the CAA and federal district and appellate court decisions.
        Nevertheless, EPA does not believe the first approach is a proper 
    application of section 177 in the National LEV context. The two-year 
    lead time requirement is intended to give manufacturers time to make 
    the changes in product planning, production and distribution that are 
    involved in switching from one motor vehicle program to another. It 
    recognizes the practical difficulties in making large production shifts 
    in very short time-frames. Where manufacturers have had the legal 
    authority to comply with National LEV in lieu of the state program, 
    allowing states to drop National LEV as a compliance alternative with 
    no lead time would prevent manufacturers from receiving the protection 
    that Congress conferred on manufacturers in section 177.44 
    EPA does not believe it is appropriate to interpret the statute in a 
    manner that negates the intended purpose of the provision, and hence 
    does not agree that the alternative interpretation is inconsistent with 
    either the CAA or the court cases to date that have addressed the 
    implementation of section 177. In addition, EPA is explicitly stating 
    that this interpretation is only warranted by and is confined to the 
    unique circumstances presented by backstop programs under National LEV, 
    and thus EPA does not believe this interpretation will set a precedent 
    that could be applied in inappropriate circumstances. Finally, EPA does 
    not agree that this interpretation discourages a state from exercising 
    a right provided by Congress. EPA does not believe that Congress 
    provided a state the right to accept National LEV as a compliance 
    alternative and then impose a backstop Section 177 Program without 
    providing any time for the manufacturers to meet the new requirements. 
    Thus, EPA is not adopting this approach.
    ---------------------------------------------------------------------------
    
        \44\ EPA is rejecting the date of state adoption of regulations 
    as the starting date for determining whether the section 177 lead 
    time requirement has been met only in those situations where a state 
    has adopted a backstop Section 177 Program and National LEV has come 
    into effect. For those states that already have backstop Section 177 
    Programs, if National LEV does not come into effect, the date of 
    adoption of the state regulations is still the controlling date for 
    determining when the two-year lead time requirement has been met. In 
    those states, the only legal option available to manufacturers has 
    been to comply with the state Section 177 Program. The theoretical 
    possibility that they might not have to comply with the state 
    requirements does not mean that they have not been given the two-
    year lead time required by section 177. EPA did not receive any 
    comments disagreeing with this application of section 177.
    ---------------------------------------------------------------------------
    
        EPA is therefore adopting the second approach to section 177 under 
    these limited circumstances. EPA believes this is the most appropriate 
    way to implement section 177 in this special circumstance, as long as 
    manufacturers are able to waive the two-year lead time requirement. 
    Given that the failure to provide statutory lead time renders 
    noncomplying state programs unenforceable, rather than rendering them 
    void,45 there should be little question that manufacturers 
    have the ability to waive the lead time requirement if they choose. The 
    manufacturers' comments did not question their ability to waive lead 
    time under section 177. This approach to section 177 (including both 
    when lead time starts and that manufacturers can waive the lead time) 
    ensures that, in the context of National LEV and state backstop Section 
    177 Programs, two of Congress' purposes in adopting section 177 are 
    met--it protects manufacturers from having insufficient time to switch 
    from one motor vehicle program to another, and it allows states to 
    ensure that they can achieve the extra emissions reductions from motor 
    vehicles contemplated by section 177.
    ---------------------------------------------------------------------------
    
        \45\ See American Automobile Manufacturers Ass'n v. Greenbaum, 
    No. 93-10799-MA, slip op. at 23, 1993 WL 442946 (D. Mass. Oct. 27, 
    1993), aff'd., 31 F.3d 18 (1st Cir., 1994).
    ---------------------------------------------------------------------------
    
        However, the OTC States indicated that even if section 177 did not 
    require the amount of lead time incorporated in the National LEV 
    regulations, the OTC States were willing to agree to provide that lead 
    time. Thus, as an alternative legal theory independent of the proper 
    interpretation or application of section 177, by opting into National 
    LEV, the OTC States agree to provide manufacturers with the lead time 
    provided in the National LEV final regulations if a state deletes 
    National LEV as a compliance alternative (including legitimately opting 
    out of National LEV) or a manufacturer legitimately opts out of 
    National LEV.
        EPA's interpretation of section 177 is reflected in today's final 
    regulations 40 CFR 86.1707 regarding what requirements would apply in 
    the unlikely event that an OTC State were to break its commitment to 
    National LEV or that a manufacturer or an OTC State were to opt out of 
    National LEV. For example, if a state with a backstop Section 177 
    Program were to delete National LEV as a compliance alternative after 
    National LEV had come into effect, the state would have changed the 
    manufacturers' regulatory obligations and the manufacturers would be 
    entitled to two-years lead time running from the date of the state 
    action purporting to change the manufacturers' regulatory obligation. 
    By opting into National LEV, manufacturers would not be agreeing to 
    waive the lead time required under section 177 in a circumstance where 
    a state broke its commitment to National LEV and deleted National LEV 
    as a compliance alternative. Thus the manufacturer would get the full 
    two-years lead time set by section 177.
        Another example demonstrates how the waiver provision modifies the 
    two-year lead time. If an offramp were triggered and a manufacturer 
    were to decide to opt out of National LEV and then set an effective 
    date one year from the time of its opt out, under today's regulations, 
    upon the effective date of the opt out, the manufacturer would be 
    required to comply with Section 177 Programs (except for backstop ZEV 
    mandates) in any state that had not broken its commitment to National 
    LEV. To the extent that this provides the
    
    [[Page 951]]
    
    manufacturer with less than two-years lead time, the manufacturer will 
    have waived the lead time provision by opting into National LEV 
    combined with setting the effective date for its opt-out. For backstop 
    ZEV mandates, however, manufacturers would not have to comply with the 
    ZEV mandate until the two-year lead time period had passed (which would 
    start running from the date of the manufacturer's opt-out) because in 
    opting into National LEV manufacturers are not waiving the two-year 
    lead time with respect to ZEV mandates. Additionally, by opting in, the 
    OTC States are agreeing to provide this two-years of lead time 
    regardless of the applicability of section 177.
        A third possible approach to section 177's two-year lead time 
    requirement provides an alternative basis for today's rule. Under this 
    approach, the lead time requirement differs depending upon the factual 
    setting. In some instances, measuring lead time from the date of state 
    adoption of a backstop Section 177 Program still provides manufacturers 
    adequate protection and thereby implements both the clear language of 
    the statute and the clear intent of the provision. For example, in 
    opting into National LEV, a manufacturer is choosing to accept a 
    compliance alternative that involves some risk of a rapid change in the 
    manufacturer's regulatory obligations if the manufacturer opts out. 
    However, as provided here, the program that the manufacturer is opting 
    into provides substantial protection for manufacturers with regard to 
    the applicability of backstop Section 177 Programs upon an opt-out. 
    Because the manufacturer controls the effective date of the opt-out and 
    the manufacturer would not be subject to a backstop Section 177 Program 
    until its opt-out became effective, the manufacturer can ensure that it 
    does not become subject to a Section 177 Program without whatever lead 
    time it views as adequate. In this situation, the statutory intent to 
    ensure that manufacturers have lead time is met by providing that a 
    state can immediately implement a Section 177 Program for any 
    manufacturer whose opt-out from National LEV is effective, if the 
    backstop Section 177 Program was adopted at least two years previously. 
    Thus, for situations where the manufacturer controls the date that it 
    becomes subject to the Section 177 Program, section 177 would start the 
    two-year lead time period from the date of state adoption of the 
    backstop Section 177 Program.
        The other type of situation is one where the state takes an action 
    imposing requirements on a manufacturer under section 177 and the 
    manufacturer has no control over the timing of those requirements. For 
    example, a state might remove National LEV as a compliance alternative 
    from its state regulations, leaving only the Section 177 Program 
    requirements in place, which the state had adopted at least two years 
    earlier. In that instance, making the manufacturer immediately subject 
    to the section 177 requirements would be contrary both to the purposes 
    of the section 177 lead time requirement and to the intended operation 
    of National LEV. By opting into National LEV the manufacturer did not 
    accept the possibility that a state might commit to National LEV and 
    then violate that commitment. Nor is there any way for the manufacturer 
    to protect itself against an immediate application of the section 177 
    requirements by the violating state, except not to opt into National 
    LEV at all. Under the circumstances where the state controls the timing 
    of the applicability of the Section 177 Program, the section 177 lead 
    time provisions would be implemented by requiring two years of lead 
    time from the date that the manufacturer knew it would become subject 
    to the state's Section 177 Program without the option of complying with 
    National LEV as an alternative.
        Today's interpretation of section 177 applies only in the unique 
    situation presented by National LEV--where states and manufacturers are 
    both voluntarily opting into the national program. It does not 
    necessarily provide any guidance for other circumstances.
    
    VII. National LEV Will Produce Creditable Emissions Reductions Because 
    It Is Enforceable
    
        In the Final Framework Rule, EPA noted that National LEV must be an 
    enforceable program to grant states credits for SIP purposes for 
    emission reductions from National LEV vehicles. As discussed in the 
    Final Framework Rule, there are two aspects to ensuring that National 
    LEV is enforceable. See 62 FR 31225 (June 6, 1997). First, the National 
    LEV program emissions standards and requirements must be enforceable 
    against those manufacturers that have opted into the program and are 
    operating under its provisions. In the Final Framework Rule, EPA found 
    that the National LEV program meets this aspect of enforceability. 
    Second, the National LEV program itself must be sufficiently stable to 
    make it likely to achieve the expected emissions reductions. To achieve 
    the expected emissions reductions from National LEV, the offramps must 
    not be triggered and the program must remain in effect for its expected 
    lifetime. EPA also found in the Final Framework Rule that the program 
    elements finalized in that rule would contribute to a stable National 
    LEV program. In today's notice, EPA finds that the complete National 
    LEV program as contained in today's Final Rule and the Final Framework 
    Rule will be sufficiently stable to make the program enforceable and 
    hence creditable for SIP purposes.
        The only circumstances that would allow the National LEV program to 
    terminate prematurely would be an OTC State's failure to meet the 
    commitments it makes regarding adoption of motor vehicle programs under 
    section 177 of the Act, certain EPA changes to Stable Standards, an EPA 
    determination that National LEV would no longer produce emission 
    reductions equivalent to or greater than OTC State Section 177 
    Programs, or certain EPA actions or inactions related to in-use 
    fuels.46 The Final Framework Rule described the basis for 
    EPA's belief that the Agency is unlikely to change any of the Stable 
    Standards in a manner that would give the auto manufacturers the right 
    to opt out of National LEV.47 Here EPA finds that National 
    LEV is stable because EPA believes that an OTC State is unlikely to 
    fail to meet its commitments to National LEV, National LEV is likely to 
    continue to produce equivalent (or better) emission reductions than OTC 
    State Section 177 Programs, and EPA is unlikely to act in a manner that 
    would allow manufacturers to opt out based on the proposed offramps 
    related to in-use fuels.
    ---------------------------------------------------------------------------
    
        \46\ OTC States could also opt out if a manufacturer opted out, 
    and manufacturers could opt out if either another manufacturer or an 
    OTC State opted out. Yet for purposes of evaluating the stability of 
    the National LEV program, EPA need not consider these secondary opt-
    out opportunities because they would only arise if an OTC State or 
    EPA had already triggered another offramp.
        \47\ The list of Non-Core Stable Standards which previously 
    referenced the federal Tier 1 Supplemental Federal Test Procedures 
    (SFTP) requirements has been updated to reflect the SFTP provisions 
    in today's rule. This does not affect EPA's rationale for finding 
    the National LEV program stable, as discussed in the Final Framework 
    Rule.
        Due to the change in the duration of the auto's commitment 
    (discussed in section V.A. above), EPA has reworded 40 CFR 
    86.1705(d)(10). The wording changes do not change the intent of the 
    provision, however, which is to clarify that EPA's promulgation of 
    Tier 2 standards effective in MY2004 or later does not allow 
    manufacturers to opt out of National LEV.
    ---------------------------------------------------------------------------
    
    A. OTC States Will Keep Their Commitments to National LEV
    
        As discussed above, there are four ways in which an OTC State could 
    violate its commitments to National LEV and allow the manufacturers to 
    opt out
    
    [[Page 952]]
    
    of the program: (1) Attempt to have a state Section 177 Program 
    (including ZEV mandates, except in states with existing ZEV mandates) 
    that was in effect and that did not allow National LEV as a compliance 
    alternative for the duration of the state's commitment to National LEV; 
    (2) in states without existing ZEV mandates, adopt a backstop ZEV 
    mandate that would come into effect before the end of the state's 
    commitment to National LEV, even if the state allows National LEV as a 
    compliance alternative to the ZEV mandate for the duration of the 
    state's commitment to National LEV; (3) fail to submit a National LEV 
    SIP revision to EPA by the specified date; or (4) fail to submit an 
    adequate National LEV SIP revision. EPA is confident that the OTC 
    States will keep all of their commitments to National LEV for the 
    duration of the program. The OTC States' practical ability to meet 
    their commitments, the fact that the OTC States would have made 
    commitments to the program through both practically binding instruments 
    and legally binding instruments, and the effects of a violation of 
    their commitments, all combine to support a finding that the states are 
    unlikely to trigger an offramp for manufacturers.
        First, the OTC States should have no practical difficulty carrying 
    out their commitments. After the OTC States have opted into National 
    LEV and the program has come into effect, the states will need to adopt 
    regulations (or modify existing regulations) to commit to accept 
    National LEV as a compliance alternative for the specified duration and 
    to submit those regulations to EPA as a SIP revision within one year 
    (or for a few states, eighteen months) of the date of EPA's finding 
    that National LEV is in effect. Based on discussions with each of the 
    OTC States on the time needed to complete a rulemaking in that state 
    and the absence of any comments to the contrary, EPA believes that 
    these are realistic deadlines for state action, which would provide 
    sufficient time for the states to complete their regulatory processes 
    and submit their SIP revisions. (See docket no. A-95-26 for memo on 
    these discussions.) See the SNPRM (60 FR 44754 at 44775) for further 
    discussion of how the timing and political significance of the initial 
    opt-ins enhances the likelihood that the states will submit their SIP 
    revisions in a timely manner.
        Once EPA has approved a National LEV SIP revision, the state will 
    be legally bound to uphold its commitment. As discussed above in 
    section V.C.4, an approved SIP provision committing a state to accept 
    National LEV as a compliance alternative to a state Section 177 Program 
    or ZEV mandate would preempt a conflicting state law that required 
    manufacturers to comply with a state Section 177 Program or ZEV mandate 
    without allowing National LEV as a compliance alternative. Until EPA 
    approved a subsequent SIP revision, manufacturers could enforce the 
    initial SIP commitment in federal court. Furthermore, EPA would be 
    obligated to disapprove a subsequent SIP revision that violated a 
    state's commitment to allow National LEV as a compliance alternative 
    for the specified period if it would interfere with other states' 
    ability to attain the NAAQS. Other states are likely to have reasonably 
    relied upon the emissions reductions from National LEV for attainment 
    and maintenance, and the effect of approving the new SIP revision would 
    very likely be to deprive the states of those reductions.
        For states without existing ZEV mandates, the statement of intent 
    not to adopt a backstop ZEV mandate effective during the period of the 
    state's commitment to National LEV need not be incorporated as a 
    legally enforceable element of the state's SIP revision. However, there 
    are still strong practical disincentives for a state to adopt such a 
    provision, as it would allow the manufacturers to opt out of National 
    LEV with all of the negative environmental consequences that doing so 
    would entail, as discussed below. In addition, OTC States would have 
    very little incentive to adopt a backstop ZEV mandate effective during 
    the period of the state's commitment to National LEV because such a 
    backstop would offer a state very little protection against a 
    manufacturer's opt-out from National LEV. A backstop state Section 177 
    Program, which would require compliance with the fleet average NMOG 
    provisions of the CAL LEV program, would apply to any manufacturer that 
    had opted out of National LEV immediately upon such a manufacturer's 
    opt-out becoming effective. Thus, adoption of a backstop state Section 
    177 Program at least two years prior to the effective date of a 
    manufacturer's opt-out would allow the program to apply as soon as the 
    manufacturer was no longer subject to the National LEV requirements, 
    without the state providing an additional two years of lead time. 
    However, in their commitments to National LEV, OTC States would commit 
    to, and section 177 would require, that they provide manufacturers at 
    least two years of lead time from the date of the manufacturer's opt-
    out prior to any ZEV mandate becoming effective, regardless of the 
    effective date of the manufacturer's opt-out. Thus, the only potential 
    benefit from adoption of a backstop ZEV mandate effective during the 
    period of the state's commitment to National LEV would be to avoid the 
    additional delay in the applicability of the mandate that would be 
    caused by the time required for adoption, but not to avoid the delay 
    caused by providing the required lead time. Given that the state 
    commitments to National LEV extend until MY2006 at the latest, it is 
    highly unlikely that a manufacturer would opt out of National LEV 
    within a timeframe in which such a delay could have any effect. With 
    virtually no benefit to be gained from such an action, combined with 
    the fact that it would allow manufacturers to opt out of National LEV, 
    EPA believes it is highly unlikely that any state without an existing 
    ZEV mandate would adopt a backstop ZEV mandate effective during the 
    period of the state's commitment to National LEV.
        Even if the state were not bound to its commitment legally, the 
    practical effects of not meeting its commitment provide an independent 
    basis for finding that National LEV is stable. The structure of the 
    opt-out provisions establishes substantial disincentives for OTC States 
    to violate their commitments, given the requirements that would apply 
    to vehicles sold in the violating state, the opportunity it would 
    provide for manufacturers to opt out of National LEV, and the 
    consequences of such an opt-out. As discussed in detail above in 
    section VI.A.1, for an OTC State that has violated its commitment by 
    attempting to have a state Section 177 Program that does not allow 
    National LEV as a compliance alternative, the consequences in that 
    violating state would be that under National LEV all manufacturers 
    would be able to comply with Tier 1 tailpipe standards and not count 
    those vehicles in the fleet NMOG average. Thus, as provided in 40 CFR 
    86.1707(e)(2), the violating state would receive SIP credits based on 
    this reduced compliance obligation. Similarly, if a state failed to 
    submit its SIP revision committing to National LEV, submitted an 
    inadequate SIP revision, or adopted a backstop ZEV mandate effective 
    during the period of the state's commitment to National LEV, the same 
    reduced tailpipe standard requirements would apply in the violating 
    state for any manufacturer that opted out of National LEV until the 
    manufacturer's opt-out became effective. Thus, the violating state 
    would (or is likely to, depending upon the type of violation) receive 
    higher emitting
    
    [[Page 953]]
    
    vehicles and commensurately fewer SIP credits. (See section VI.A above 
    for a discussion of timing of requirements applicable to manufacturers 
    under various options.)
        In addition, states will be further discouraged from violating 
    their commitments because a state violation would give manufacturers 
    the opportunity and reason to opt out of National LEV, and manufacturer 
    opt-outs would hurt air quality in all states. If National LEV is in 
    effect, a substantial number of the OTC States and probably all of the 
    37 States are unlikely to have backstop Section 177 Programs in place. 
    States without backstop Section 177 Programs would not be able to 
    implement a state Section 177 Program for over two years because of the 
    time needed to adopt a program and the two years of lead time required 
    under section 177. During this period, manufacturers that had opted out 
    of National LEV would have to comply only with federal Tier 1 standards 
    for sales of new motor vehicles in those states without backstop 
    programs. Also, sales of these Tier 1 vehicles would further increase 
    vehicle emissions in both the violating state and states with backstop 
    Section 177 Programs as well, through migration of dirtier Tier 1 
    vehicles and transport of air pollution from states receiving Tier 1 
    vehicles.
        EPA is confident that the combination of the feasibility of 
    compliance with the OTC State commitments, the practical and legal 
    constraints on a state breaking its commitment, and the environmental 
    and SIP-related consequences of a state breaking its commitment make it 
    highly unlikely that an OTC State that has opted into National LEV will 
    violate any of its commitments to the program.
    
    B. It Is Unlikely That National LEV Would Be Found Not To Produce 
    Emission Reductions Equivalent to OTC State Section 177 Programs
    
        As discussed in section VI.D.2 above, today's Final Rule allows OTC 
    States to request that EPA do a periodic equivalency finding to 
    determine whether modifications to EPA new motor vehicle regulations 
    (or their implementation, to the extent that is reflected in the 
    modeling) will reverse EPA's finding that National LEV is equivalent to 
    (or better than) OTC State Section 177 Programs. EPA believes it is 
    unlikely to change the result of its equivalency determination as a 
    result of the periodic determinations. The primary, and perhaps only, 
    possible circumstance that could cause a change in the equivalency 
    finding would be EPA modifying a new motor vehicle regulation in a way 
    that makes it significantly less stringent.48 It is highly 
    unlikely that this would occur. Given the greater emissions reductions 
    that would be produced by National LEV compared to the alternative of 
    OTC State Section 177 Programs (discussed above in section IV), only a 
    significant weakening of an EPA regulation would be likely to change 
    EPA's determination that National LEV would produce emissions 
    reductions at least equivalent to the alternative. Such a weakening of 
    an EPA new motor vehicle regulation would be contrary to EPA's mission 
    of environmental protection and would jeopardize the National LEV 
    program, which the Agency strongly supports. EPA has invested 
    significant resources in facilitating the negotiations between the 
    parties and developing the regulatory framework for the National LEV 
    program, and the Agency would not lightly jeopardize the results of 
    this effort. The discussion in the SNPRM as to why EPA would not make a 
    Stable Standard less stringent in a way that would change the 
    equivalency determination applies to changes to all new motor vehicle 
    standards. See Section VII.B of the SNPRM, 62 FR 44776.
    ---------------------------------------------------------------------------
    
        \48\ The OTC States have suggested that changes in 
    implementation of EPA new motor vehicle regulations might also 
    affect the equivalency determination. EPA is not aware that the 
    model reflects this type of implementation of EPA regulations.
    ---------------------------------------------------------------------------
    
    C. EPA Is Unlikely To Fail To Consider In-Use Fuels Issues Upon a 
    Manufacturer's Request
    
        EPA also believes that the Agency is unlikely to act or fail to act 
    in a manner that would allow the manufacturers to opt out of National 
    LEV based on the offramp related to in-use fuels. As discussed above, 
    today's Final Rule provides autos with an offramp if EPA fails to 
    consider certain manufacturer requests regarding the potential effects 
    of fuel sulfur levels on the emission performance of National LEV 
    vehicles.
        Given the nature of the offramp, EPA believes it is highly unlikely 
    that it would ever be triggered. This offramp does not guarantee 
    manufacturers any particular substantive outcome to their requests, nor 
    does it provide manufacturers any additional rights (beyond what 
    rights, if any, are provided otherwise under the Clean Air Act and the 
    Administrative Procedure Act) to a particular substantive outcome or to 
    have the substantive outcome reviewed by a court. Rather, this offramp 
    formalizes the process EPA previously committed to follow in addressing 
    potential problems related to the higher sulfur levels in fuel supplied 
    nationally (including in the OTC States) than in California. If ongoing 
    additional investigations indicate problems that need to be addressed, 
    EPA will need to reassess the fuel sulfur issue in both the National 
    LEV context and other EPA motor vehicle emission control programs, as 
    discussed above in section VI.C. Given EPA's recognition of the 
    manufacturers' concerns and the ongoing process for resolving them 
    outside of the National LEV context, EPA believes it is highly unlikely 
    that the Agency would fail to respond to a manufacturer's request to 
    address any problems that are identified or decline to consider any 
    reasonable solutions. In addition, EPA would have all the same 
    incentives here to avoid taking any action that would jeopardize the 
    benefits from the National LEV program, as discussed above for changes 
    to new motor vehicle requirements that could result in a change to the 
    equivalency finding.
    
    VIII. Additional Provisions
    
    A. Early Reduction Credits for Northeast Trading Region
    
        As was proposed, under today's rule manufacturers may generate 
    early reduction credits for sales of vehicles in the Northeast Trading 
    Region (NTR) in MY1997 and MY1998, prior to the start of National LEV 
    in MY1999. 40 CFR 86.1710(c)(8). No commenters opposed early reduction 
    credits. The ability to generate these credits will provide 
    manufacturers added flexibility as well as create an incentive for them 
    to introduce cleaner vehicles into this region before MY1999, thus 
    providing air quality benefits sooner.
        Today's rule takes the same approach to these early reduction 
    credits in the NTR as the Final Framework Rule took to the early 
    reduction credits earned in the 37 States before MY2001.40 CFR 
    86.1710(c)(7). Since the credits cannot be used or traded before 
    MY1999, EPA is proposing to treat any credits earned in the NTR before 
    MY1999 as if earned in MY1999 for annual discounting purposes. This is 
    consistent with EPA's approach to early reduction credits in the 37 
    States and with California's approach to allowing early generation of 
    credits. These credits will be subject to the normal discount rate 
    starting with MY1999, meaning they will retain their full value for 
    MY2000 and will be discounted from then on. In addition, consistent 
    with the approach to early reduction credits in the 37 States, early 
    reduction credits in the NTR will be subject to a one-time ten percent 
    discount applied in MY1999, as discussed below.
    
    [[Page 954]]
    
        Manufacturers will be able to generate early reduction credits in 
    the NTR by supplying vehicles with lower emissions than otherwise 
    required during this time period in any OTC State that is in National 
    LEV for MY1999 and later. Specifically, manufacturers would be able to 
    generate credits for sales of TLEVs, LEVs, ULEVs and ZEVs sold in the 
    OTR outside New York and Massachusetts in MY1997, and outside of New 
    York, Massachusetts and Connecticut in MY1998, to the extent that such 
    vehicles can be sold under EPA's cross-border sales 
    policy.49 Additionally, manufacturers could generate credits 
    for sales of vehicles achieving a lower fleet average NMOG value than 
    required under the state Section 177 Programs in New York and 
    Massachusetts in MY1997, and in New York, Massachusetts and Connecticut 
    in MY1998, assuming that those states commit to National LEV for MY1999 
    and later. Manufacturers would not be able to take credit for vehicles 
    sold to meet the applicable NMOG averages in New York, Massachusetts 
    and Connecticut in MY1997 and MY1998, as that would be using vehicles 
    required independent of National LEV to reduce the stringency of the 
    National LEV requirements, and hence would be ``double-counting.''
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        \49\ See docket no. A-95-26, IV-A-03 for EPA's cross border 
    sales policy. The current cross border sales policy allows sales of 
    vehicles certified to California's emission standards in states 
    contiguous to, or within 50 miles of, California and states that 
    have a program adopted under section 177 in place. Thus, in the OTR 
    for MY1997 and MY1998, manufacturers are allowed to sell California 
    vehicles in Maine, New Hampshire, Vermont, Massachusetts, New York, 
    Rhode Island, New Jersey, Pennsylvania, and Connecticut.
    ---------------------------------------------------------------------------
    
        EPA believes that there are substantial benefits to early 
    introductions of cleaner vehicles. However, the Final Framework Rule 
    included a discount for early reduction credits in the 37 States in 
    part to address a concern that giving full, undiscounted credits for 
    all early reductions may generate some windfall credits. See 62 FR 
    31214-31215. ``Windfall'' credits are credits given for emission 
    reductions the manufacturer would have made even in the absence of an 
    early credit program. The purpose of giving credits for early 
    reductions is to encourage manufacturers to make reductions that they 
    would not have made but for the credit program. Because credits can be 
    used to offset higher emissions in later years, if manufacturers are 
    given credits for early reductions they would have made even without a 
    credit program, an early credit provision could decrease the 
    environmental benefits of the program.
        Although EPA took comment on the potential for windfall credits in 
    the NTR and in the 37 State region and whether ten percent is an 
    appropriate discount factor for each region, EPA decided that 
    circumstances had not changed since the Final Framework Rule in a way 
    that would justify reducing the discount factor below 10%. To the 
    contrary, Honda's introduction nationally of LEV technology vehicles 
    (albeit certified to Tier 1 levels) confirmed that National LEV and the 
    ability to earn early reduction credits are not the only reasons 
    manufacturers would move to cleaner vehicle technology.
    
    B. Calculation of Compliance with Fleet Average NMOG Standards
    
        Today's final rule contains provisions for the calculation of 
    compliance with the National LEV fleet NMOG average in the event that 
    fewer than 49 states are participating in the program. These provisions 
    are necessary even though EPA continues to believe that National LEV 
    should be a 49-state program and the auto manufacturers have repeatedly 
    stated that all thirteen OTC States must opt in for National LEV to 
    come into effect. If the auto manufacturers and the relevant OTC States 
    are interested in National LEV proceeding even with less than 49 states 
    participating, EPA would want National LEV to proceed. Additionally, 
    after the program is found in effect, it is possible that National LEV 
    would continue even if one or more OTC States opt out at a future time. 
    Therefore, National LEV requirements must provide for the possibility 
    of having less than 49 states in the program, which will necessitate 
    changes in the Final Framework Rule's provisions for determining 
    compliance with the fleet average NMOG standards.
        In the SNPRM, EPA proposed to modify the Final Framework Rule so 
    that the fleet average NMOG calculation would not include vehicle sales 
    in any OTC State that legitimately opts out once that opt-out becomes 
    effective.50 This would help ensure that states that opt 
    into National LEV will receive the anticipated emissions benefits as 
    long as they and the auto manufacturers participate in National LEV. 
    The opposite approach (i.e., including all vehicle sales in any OTC 
    States that are not participating in National LEV) would concentrate 
    cleaner cars in those OTC States with state Section 177 Programs at the 
    expense (environmentally) of OTC States committed to National LEV. EPA 
    is finalizing the program to have manufacturers not include vehicles 
    sold in a state that opts out of the program in their fleet average 
    NMOG compliance calculations for the Northeast Trading Region (NTR) or 
    All States Trading Region (ASTR). This action provides the maximum 
    emission benefits to the states participating in the National LEV 
    program. Additionally, vehicles sold in an OTC State that was not 
    participating in National LEV will be included in the fleet average 
    NMOG compliance calculations for that state, and it would be 
    inequitable to count those vehicles in compliance calculations for the 
    National LEV program as well.
    ---------------------------------------------------------------------------
    
        \50\ EPA's treatment of vehicle sales in OTC States that break 
    their commitments is addressed in the regulatory provisions and 
    preamble discussion of manufacturer and OTC State offramps. See 
    section VI above and 40 CFR 86.1707.
    ---------------------------------------------------------------------------
    
        EPA also took comment on whether to count in a manufacturer's fleet 
    average NMOG calculation those California-certified vehicles that are 
    sold under EPA's Cross Border Sales (CBS) policy in states that are 
    participating in National LEV. A National LEV program consisting of 
    less than all of the OTC States would necessitate the continuation of 
    EPA's CBS policy for those manufacturers producing vehicles certified 
    separately to Federal and California standards. This policy allows 
    manufacturers to introduce into commerce California-certified vehicles 
    in states that are contiguous to California or other states that have 
    adopted the Section 177 Program. The policy was designed to alleviate 
    the burden on dealerships located in border regions of states with a 
    Section 177 Program from having to stock, service, and sell two types 
    of vehicles: those meeting the California emission requirements and 
    those meeting the Federal emission requirements. If a state were not 
    participating in National LEV and instead had a Section 177 Program in 
    effect, under the CBS policy manufacturers would be allowed to sell 
    California-certified vehicles in National LEV states bordering the non-
    participating state. The necessity of continuing the Cross-Border Sales 
    policy raises the issue of how to count such California-certified 
    vehicles sold in those contiguous states in calculating the 
    manufacturer's compliance with its National LEV fleet average NMOG 
    requirement.
        EPA has decided to allow manufacturers to include all National LEV 
    vehicles and California-certified vehicles sold in the NTR in MY1999 
    and MY2000 (including California Tier 1 vehicles) in their fleet 
    average NMOG compliance calculations for the NTR in MY1999 and MY200 
    (except for any vehicles sold in an OTC State that has not opted in or 
    that otherwise has its own Section 177 Program). If all these
    
    [[Page 955]]
    
    California-certified vehicles were not included in the compliance 
    calculation, a manufacturer could detrimentally affect its compliance 
    with the fleet average NMOG standards in the NTR by selling higher-
    emitting California-certified vehicles, which would not be included in 
    its NTR compliance calculation nor in any calculation done to show 
    compliance with a state Section 177 Program. These vehicles would 
    decrease the size of the manufacturer's fleet in the NTR and allow the 
    manufacturer to demonstrate compliance with applicable fleet average 
    NMOG standards using a smaller fleet size than was actually sold in the 
    NTR.
        EPA has also decided to allow manufacturers to count only vehicles 
    certified to federal standards in the fleet average NMOG calculation 
    for MY2001 and later. No California-certified vehicles sold in National 
    LEV states will count in a manufacturer's fleet average NMOG compliance 
    calculation after MY2000. Given the nationwide trading region that will 
    go into effect in MY2001, it becomes much more difficult for a 
    manufacturer to artificially decrease the size of its National LEV 
    fleet and thereby artificially inflate its NLEV NMOG fleet average 
    through sales of California-certified vehicles. The much larger number 
    of vehicles included in the ASTR means that any sales of California 
    vehicles in the NTR under the CBS policy will not have a generally 
    noticeable effect on the calculated fleet averages in the ASTR. 
    California-certified vehicles sold in the NTR after MY2000 will also 
    likely be LEVs and ULEVs, as discussed in sections IX and VIII.E, so 
    there is even less likelihood of a detrimental environmental impact 
    from the sale of California-certified vehicles in the NTR. The auto 
    manufacturers' comments supported not including California-certified 
    vehicles in their fleet average NMOG compliance calculations after 
    MY2000.
    
    C. Certification of Tier 1 Vehicles in a Violating State
    
        If an OTC State violates its commitment to National LEV, in some 
    instances manufacturers will have the option of supplying vehicles 
    meeting only the Tier 1 emission standards in the violating state. To 
    exercise this option, manufacturers could sell different vehicles 
    (i.e., Tier 1 vehicles) to the violating OTC State than they are 
    selling to the other states (i.e., TLEVs, LEVs, ULEVs and ZEVs). 
    Alternatively, manufacturers could sell the same vehicles to all 
    states, but have a label that indicates that vehicles sold in the 
    violating OTC State are only certified to Tier 1 levels. Such vehicles 
    sold in the violating OTC State would have Tier 1 tailpipe standards 
    for their compliance levels (which would govern recall and warranty 
    actions and SIP credits), but would have TLEV, LEV, ULEV or ZEV 
    tailpipe standards for their compliance levels when sold in other 
    states covered by the National LEV program.
        It is possible that a manufacturer could begin vehicle 
    certification for a given model year before learning that it is only 
    required to sell Tier 1 vehicles in a given state. In such a situation, 
    EPA will allow a manufacturer to change the compliance levels of its 
    vehicles sold in a violating OTC State through the submission of 
    running changes to EPA. A running change is a mechanism manufacturers 
    use to obtain approval from EPA for modifications or additions to 
    vehicles or engines that have already been certified by EPA but are 
    still in production. By allowing a manufacturer to change the 
    compliance levels of its vehicles through a running change that applies 
    only to vehicles sold in a violating OTC State, manufacturers will have 
    a procedure to respond in a timely fashion to a state breaking its 
    commitment, which will provide a real disincentive for an OTC State to 
    break its commitment.
        Manufacturers currently use running changes in the federal 
    certification process to obtain EPA approval of a change in a specified 
    vehicle configuration or an addition of a vehicle or engine to an 
    approved engine family that is still in production.51 A 
    manufacturer may notify the Administrator in advance of or concurrent 
    with making the addition or change. The manufacturer must demonstrate 
    to EPA that all vehicles or engines affected by the change will 
    continue to meet the applicable emission standards. This demonstration 
    can be based on an engineering evaluation and testing if the 
    manufacturer determines such testing is necessary. The Administrator 
    may require that additional emission testing be performed if the 
    manufacturer's determination is not supported by the data included in 
    its running change application. EPA may disapprove a running change 
    request, which could then require manufacturers to remedy vehicles or 
    engines produced under the request.
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        \51\  See 40 CFR 86.079-32, 86.079-33, and 86.082-34.
    ---------------------------------------------------------------------------
    
        EPA will exercise its current authority to allow manufacturers to 
    use a running change to modify quickly the compliance level of their 
    National LEV vehicles to Tier 1 tailpipe standards when the National 
    LEV regulations set the only applicable tailpipe standards at Tier 1 
    levels in a particular state. Such running changes will reflect only 
    the change in emission standards the vehicles are required to meet. 
    After such running change has been made, vehicles sold in a state for 
    which Tier 1 standards are applicable will be treated as Tier 1 
    vehicles for purposes of federal enforcement requirements and warranty 
    limits and would not count in the manufacturers' NMOG fleet average.
        If a manufacturer wished to sell vehicles with Tier 1 compliance 
    levels in a violating OTC State and more stringent compliance levels in 
    other states, it would be required to modify its certification 
    application to reflect the change and install a modified Vehicle 
    Emission Control Information (VECI) label. The label would state that 
    the vehicle complies with TLEV, LEV, ULEV or ZEV standards (whichever 
    is applicable), but if such vehicle is sold in the specified violating 
    OTC State, such vehicle is certified to Tier 1 tailpipe standards. The 
    modified VECI label will highlight the distinction in vehicle 
    compliance levels to consumers and the general public.52 EPA 
    believes that running changes for this particular situation may be 
    allowed by applying good engineering judgment, rather than additional 
    emission testing, since a vehicle certified to National LEV TLEV, LEV, 
    ULEV, or ZEV standards should also meet Federal Tier 1 standards. In 
    the instance where an engineering evaluation is judged to be 
    insufficient to support a change, EPA will require additional data.
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        \52\ Such a running change would not have a retroactive effect. 
    Any vehicle sold as a TLEV, LEV, ULEV or ZEV (i.e., any vehicle 
    without a label that said Tier 1 was the applicable standard for 
    sales in the relevant state at the time of the sale) would still be 
    subject to warranty and recall for the tailpipe standards applicable 
    to that category. EPA believes it would be unacceptable for a 
    consumer who purchases a LEV that, at the time of sale in that 
    state, is being sold as a vehicle certified to LEV standards for 
    that state to find out later that the vehicle has mysteriously been 
    converted to a Tier 1 vehicle.
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        Vehicles complying only with Tier 1 tailpipe standards and sold in 
    an OTC State that has violated its National LEV commitment will be 
    treated as Tier 1 vehicles in that state for purposes of demonstrating 
    compliance with federal requirements and SIP credits. These vehicles 
    will be held only to the Tier 1 tailpipe standards for purposes of 
    recall liability in that state. For example, a National LEV vehicle 
    certified to LEV standards but sold as a Tier 1 vehicle in a violating 
    state would not be subject to recall action in the violating state if 
    the
    
    [[Page 956]]
    
    problem causing the recall did not cause the vehicle to exceed the Tier 
    1 standards.53
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        \53\ EPA is considering making significant changes to its 
    existing federal compliance program, currently targeted to begin 
    with MY2000 (these changes are referred to as CAP 2000, or 
    Compliance Assurance Program 2000). While CAP 2000 is still pre-
    proposal, EPA has established a docket (A-96-50), which contains 
    information on the concepts currently being considered. Once 
    promulgated, CAP 2000 may have some potential ramifications for 
    quickly changing certification designations for National LEV 
    vehicles sold in an OTC State that had violated its National LEV 
    commitment. In particular, EPA is considering significantly 
    streamlining its current certification program and requiring 
    manufacturers to perform an in-use verification testing program to 
    demonstrate that the streamlined certification procedures are 
    capable of predicting in-use compliance. This program would apply to 
    all federally certified vehicles, including Tier 1 vehicles. Thus, 
    CAP 2000 could also possibly apply to any National LEV vehicles that 
    were only required to comply with Tier 1 tailpipe standards under 
    the proposal outlined above.
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    D. Provisions Relating to Changes to Stable Standards
    
        The Final Framework Rule provided that, with certain exceptions, 
    manufacturers would be able to opt out of National LEV if EPA changed a 
    motor vehicle requirement that it had designated a ``Stable Standard.'' 
    The Stable Standards are divided into two categories: Core Stable 
    Standards and Non-Core Stable Standards. Core Stable Standards 
    generally are the National LEV standards that EPA could not impose 
    absent the consent of the manufacturers. Non-Core Stable Standards 
    generally are other federal motor vehicle standards that EPA does not 
    anticipate changing for the duration of National LEV. For both Core and 
    Non-Core Stable Standards, EPA can make changes to which manufacturers 
    do not object. For Non-Core Stable Standards, EPA can also make changes 
    that do not increase the stringency of the standard or that harmonize 
    the standard with the comparable California standard. EPA can make 
    other changes to any of the Stable Standards, but such changes would 
    allow the manufacturers to opt out of National LEV. See the Final 
    Framework Rule for more detail on the specific Stable Standards and the 
    offramp for manufacturers associated with changes to the Stable 
    Standards (62 FR 31202-31207).
        As proposed in the SNPRM, EPA is making a few minor changes to the 
    provisions for opt-outs based on a change to a Stable Standard. See 40 
    CFR 86.1707(d). Under the Final Framework Rule, EPA had an opportunity 
    to prevent an opt-out based on a change to a Stable Standard from 
    coming into effect by withdrawing the change to the Stable Standard 
    before the effective date of the opt-out. To give EPA sufficient time 
    to withdraw the change and prevent the opt-out, under the Final 
    Framework Rule, such an opt-out could not become effective until the 
    model year named for the second calendar year following the calendar 
    year in which the manufacturer opted out.
        As proposed in the SNPRM, this Final Rule deletes the provisions 
    that allowed the Agency the ability to prevent an opt-out by 
    withdrawing a change that had allowed manufacturers to opt out. Today's 
    rule also sets the earliest effective date of an opt-out based on a 
    change to a Core Stable Standard to be the same as the earliest 
    effective date of an opt-out based on a violation of an OTC State 
    commitment to National LEV. Thus, an opt-out based on an EPA change to 
    a Core Stable Standard or an OTC State violation of its commitment to 
    National LEV could become effective beginning in the ``next model 
    year'' after the manufacturer opts out.54 See section VI.A 
    above for further discussion of the effective date of opt-outs based on 
    an OTC State violation of its commitment to National LEV.
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        \54\ The ``next model year'' is the model year named for the 
    calendar year following the calendar year in which EPA received the 
    opt-out notification. For example, if EPA received the opt-out in 
    2000, the ``next model year'' would be MY2001.
    ---------------------------------------------------------------------------
    
        EPA does not believe that this change will adversely affect the 
    stability of the National LEV program. For the reasons discussed in the 
    SNPRM (60 FR 44776), EPA is highly unlikely to make any change to a 
    Stable Standard that may allow the manufacturers to opt out. EPA 
    received no comments opposing this proposed change. See the SNPRM 
    section VIII.D for additional discussion of the reasons why EPA 
    believes this change is appropriate.
        In the Final Framework Rule, EPA stated that, if a manufacturer 
    were to take an offramp because EPA changed a Stable Standard, the 
    applicable state or federal standards would apply. At that time, EPA 
    did not discuss in detail the timing for when state or federal 
    standards would apply. As proposed in the SNPRM (60 FR 44779), today's 
    rule provides that, if a manufacturer validly opted out of National LEV 
    based on an EPA change to a Stable Standard, once the manufacturer's 
    opt-out was effective, the manufacturer's obligations would be 
    determined in the same manner as if the manufacturer had opted out 
    because an OTC State failed to submit its National LEV SIP revision on 
    time (except that no state could be treated as a violating state). As 
    of the effective date of its opt-out, the manufacturer would be subject 
    to any backstop Section 177 Programs for which the two-year lead time 
    requirement of section 177 had been met (running from the date the 
    state adopted the backstop program), and would be subject to Tier 1 
    requirements in states without such programs. Manufacturers would be 
    subject to backstop ZEV mandates for model years (as defined in Part 
    85, Subpart X) commencing two years after the date of EPA's receipt of 
    the opt-out notification. To the extent that these regulations would 
    provide a manufacturer with less than the two-year lead time set forth 
    in section 177, the manufacturer waives that protection by opting into 
    National LEV and then setting an effective date in its opt-out 
    notification that provides for less than two-years lead time. To the 
    extent these regulations would provide a manufacturer with more time 
    than required by section 177, by opting into National LEV the OTC 
    States commit to provide the lead time set forth in the National LEV 
    regulations.
    
    E. Nationwide Trading Region
    
        The National LEV program, as set forth in the Final Framework Rule, 
    required manufacturers to determine compliance with the fleet average 
    NMOG standards for the two classes of National LEV vehicles in two 
    separate trading regions: the OTC States and the 37 States making up 
    the rest of the country (except California). In the SNPRM, EPA proposed 
    to remove the requirement for two trading regions for MY2001 and later 
    model years and instead establish a nationwide trading region. EPA 
    cited the elimination of the legal requirement for National LEV to 
    provide equivalent emission reductions to the OTC LEV program and the 
    change in program start dates for both National LEV and OTC State 
    Section 177 Programs as the major reasons for it to reconsider the 
    necessity of separate trading regions. See 62 FR 44779-80. In today's 
    rule in 40 CFR 86.1710, EPA is establishing a nationwide trading region 
    which manufacturers will use to demonstrate compliance with National 
    LEV standards in MY2001 and later.
        It is important that the emissions reductions expected from 
    National LEV in the OTR are actually achieved. Various aspects of the 
    program, such as the periodic equivalency determination and the 
    separate trading regions, were designed to ensure the expected quantity 
    of emission reductions in the OTR. However, EPA believes that a 
    nationwide trading region will not detrimentally affect the 
    environmental benefits of National LEV in the OTR. EPA has received no 
    data showing significantly different vehicle model sales in different 
    regions of the country
    
    [[Page 957]]
    
    and has no reason to expect that manufacturers' compliance with a 
    nationwide trading region will lead to greater numbers of higher-
    emitting vehicles in the OTR.
        Even if vehicle model sales levels were significantly different in 
    various regions of the country, a discrepancy between the emissions 
    produced by the fleets sold in the OTR and outside the OTR would only 
    be possible if a manufacturer's fleet was made up of a number of engine 
    families certified to Tier 1, TLEV, and LEV standards. After MY2000, a 
    manufacturer's fleet would have to include Tier 1 vehicles and TLEVs, 
    as well as LEVs and ULEVs, for there to be even a possibility of 
    introducing a greater percentage of dirtier vehicles in the OTR than in 
    the rest of the country. As noted in the SNPRM, EPA does not believe 
    significant numbers of Tier 1 vehicles and TLEVs will be sold in the 
    OTR after MY2000, since other provisions of the National LEV program 
    will act to reduce the incentive to sell substantial numbers of such 
    vehicles at that time.
        Two factors support EPA's belief that the OTC States participating 
    in the National LEV program will receive vehicles with the same level 
    of emissions control under a nationwide trading region as would be 
    expected if the program retained two trading regions. First, beginning 
    in MY2001, National LEV regulations prohibit manufacturers from 
    offering for sale any Tier 1 vehicles and TLEVs in the NTR unless the 
    same engine families are certified and offered for sale in California 
    in the same model year. See 62 FR 31218 (June 6, 1997); 40 CFR 
    86.1711.55 California's more stringent fleet average NMOG 
    standard and SFTP phase-in requirements, as described in section IX, 
    will act to limit the number of Tier 1 and TLEV engine families 
    certified and sold in California, and, therefore, the number sold in 
    the NTR. Second, even though the National LEV fleet average NMOG 
    standard is not as stringent as California's, the 0.075 g/mi and 0.100 
    g/mi standards applicable under National LEV for MY2001 and later will 
    make it difficult for manufacturers to include substantial numbers of 
    Tier 1 vehicles and TLEVs in their fleet and still comply with the 
    fleet average NMOG standard. Each Tier 1 vehicle or TLEV sold by a 
    manufacturer would have to be offset by more than one ULEV vehicle in 
    order for that manufacturer to remain in compliance with the applicable 
    fleet average NMOG standards. Therefore, EPA believes there are strong 
    incentives for manufacturers to limit or even eliminate the production 
    and sale of Tier 1 vehicles and TLEVs in the NTR in MY2001 and later, 
    which would result in a nationwide vehicle fleet of essentially LEVs. 
    This result is not dependent on having a separate trading region in the 
    OTR.
    ---------------------------------------------------------------------------
    
        \55\ As stated in the SNPRM, manufacturers will not be required 
    always to sell exactly the same engine families in both California 
    and the NTR because in some instances, that would not be possible. 
    In the specific case of Tier 1 engine families, National LEV 
    maintains Federal Tier 1 standards while California has its own Tier 
    1 standards, so a manufacturer could not sell an identical 
    California Tier 1 vehicle as a Federal Tier 1 vehicle in the NTR 
    under the National LEV program. Therefore, for purposes of this 
    provision, EPA will consider a National LEV Tier 1 or TLEV engine 
    family the same as a California Tier 1 or TLEV engine family if the 
    National LEV engine family has the same technology (hardware and 
    software) as the comparable California engine family. A manufacturer 
    could always certify a Tier 1 or TLEV engine family as a 50-state 
    family and avoid this issue.
    ---------------------------------------------------------------------------
    
        A nationwide trading region will also reduce manufacturers' and 
    EPA's administrative burden in demonstrating and assessing compliance 
    with the National LEV fleet average NMOG standards. Compliance under 
    one nationwide trading region rather than two separate regions for 
    MY2001 and later model years will reduce the manufacturers' compliance 
    burden by eliminating the need specifically to track and report vehicle 
    sales in two separate regions and maintain two separate tallies of 
    credits and debits specific to the two regions. A single trading region 
    will also reduce EPA's administrative burden in determining whether 
    manufacturers are complying with the applicable fleet average NMOG 
    standards. Given a nationwide fleet that is all or almost all LEVs, a 
    separate trading region for the OTR will not have any significant air 
    quality benefit and will add additional unnecessary complexity to the 
    National LEV program. Moreover, even separate trading regions would not 
    have required manufacturers to demonstrate program compliance on an OTC 
    state-by-state basis, but would instead have only required compliance 
    demonstrations based on regionwide sales. Separate trading regions 
    would thus have been of limited value to OTC States wishing to use 
    National LEV program vehicle tracking requirements to check on the 
    different types of vehicles sold within individual states.
        Under today's rule, National LEV retains the NTR, which would apply 
    for MY1999-2000 and cover vehicles sold in the OTC States. The second 
    region would be the All States Trading Region (ASTR), which will 
    include all states in National LEV except for California, and apply for 
    2001 and later model years. Manufacturers will demonstrate compliance 
    with the fleet average NMOG standards in these two regions under the 
    provisions set forth in today's rule and the Final Framework Rule. EPA 
    is eliminating the 37 State trading region that was finalized in the 
    Final Framework Rule.
        Manufacturers can generate early reduction credits in the states 
    outside the NTR before MY2001 to apply to compliance in the ASTR from 
    MY2001 on. Manufacturers could also use credits generated in the NTR 
    for demonstrating compliance in the ASTR from MY2001 on at the same 
    value as if the manufacturer had used them in the NTR under the Final 
    Framework Rule. However, a manufacturer could not apply early reduction 
    credits generated outside the NTR to offset any debits generated in the 
    NTR before MY2001. Using credits generated outside the NTR to offset 
    debits generated in the NTR during MY1999 and MY2000 would decrease the 
    environmental benefits that should accrue in the NTR.
        Shifting from the NTR in MY2000 to the ASTR in MY2001 does raise 
    special transition issues for manufacturers that end MY2000 with debits 
    in the NTR. (If a manufacturer ends MY2000 with credits in the NTR, 
    these credits would be subject to the usual discounting (rather than to 
    the special provisions for early reduction credits) and then could be 
    applied either in the ASTR or the NTR. Section 86.1710(d)(2) 
    specifically addresses this situation. If a manufacturer ends MY2000 
    with debits in the NTR, it can make up those debits only with NTR 
    credits. This is necessary to ensure that the NTR gets the intended 
    environmental benefits from starting the program in the NTR two years 
    before it starts in the rest of the country. A manufacturer than ends 
    MY2000 with debits in the NTR must calculate its fleet average NMOG 
    value in the NTR for MY2001. If the manufacturer does not have any 
    credits in the NTR in MY2001 (and it does not obtain NTR credits from 
    another manufacturer), then it will be subject to an enforcement action 
    for the MY2000 debits. If the manufacturer has credits in MY2001 in the 
    NTR, these must be applied to offset its MY2000 NTR debits. If the 
    MY2000 debits exceed the MY2001 credits, then the manufacturer would be 
    subject to an enforcement action for the remaining MY2000 debits. In 
    addition to calculating fleet average NMOG values for the NTR, the 
    manufacturer must also calculate fleet average NMOG values for the 
    ASTR. After calculating the level of debits or credits in the ASTR, the 
    level must be adjusted by deducting all
    
    [[Page 958]]
    
    credits used to offset MY2000 debits in the NTR.
        The National LEV program will allow a manufacturer to demonstrate 
    compliance with the fleet average NMOG standards using actual 
    production data in lieu of actual sales data if the manufacturer is 
    demonstrating compliance with the fleet average NMOG standards in the 
    ASTR. A manufacturer will need to petition EPA to allow production 
    volume to be used in lieu of actual sales volume and would have to 
    submit the petition to EPA within 30 days after the end of the model 
    year. EPA will grant such a petition if the manufacturer establishes, 
    to the satisfaction of the Administrator, that production volume is 
    functionally equivalent to sales volume. Manufacturers will still have 
    to keep sales data in the NTR to demonstrate compliance with the ban on 
    the sale of Tier 1 and TLEV engine families in the NTR if such engine 
    families are not certified for sale in California for the same model 
    year, but such data would not be reported to EPA as part of a regular 
    report. EPA has previously allowed manufacturers to use production 
    volume in lieu of sales volume as part of the Tier 1 standards phase-
    in.
    
    F. Elimination of Five-Percent Cap on Sales of Tier 1 Vehicles and 
    TLEVs in the OTR
    
        EPA's Final Framework Rule codified the OTC States' and 
    manufacturers' recommendation that National LEV include provisions 
    limiting the sale of Tier 1 vehicles and TLEVs in the NTR after MY2000. 
    The first provision is that manufacturers may sell in the NTR Tier 1 
    vehicles and TLEVs only if the same or similar engine families are 
    certified and offered for sale in California as Tier 1 vehicles and 
    TLEVs. This provision is being retained in the National LEV program. 
    The second provision is a five-percent cap on sales of Tier 1 vehicles 
    and TLEVs in the NTR starting in MY2001, which allows all manufacturers 
    to sell Tier 1 vehicles and TLEVs in the NTR to the extent permitted 
    under the first limitation as long as the overall Tier 1 vehicle and 
    TLEV fleet does not exceed five percent of the National LEV vehicles 
    sold in the NTR. EPA proposed to delete the five-percent cap provision 
    because of the change in the OTC States' legal obligation since this 
    provision was proposed and because of the additional administrative 
    burden it would entail if EPA were to adopt the proposal to have a 
    single trading region starting in MY2001. Furthermore, EPA believes the 
    five-percent cap would not provide any air quality benefit given the 
    expected fleet make-up after MY2000 and the other limitation on sales 
    of these vehicles in the NTR. See 62 FR 44781 (August 22, 1997).
        EPA has decided to delete the five-percent cap provision from the 
    National LEV program. The court reversal of the requirement that all 
    OTC States adopt Section 177 Programs effective in MY1999 means there 
    is no longer a legal requirement that EPA find that National LEV is 
    equivalent to state Section 177 Programs throughout the OTR. 
    Additionally, the expected benefits in the OTR of National LEV as 
    compared to OTC State adopted Section 177 Programs has increased. 
    Therefore, there is no legal need and less practical need for a five-
    percent cap to control NOX emissions.
        EPA also believes the five percent cap is not necessary because it 
    expects manufacturers will not introduce significant numbers of Tier 1 
    vehicles and TLEVs after MY2000 in the national, let alone the 
    Northeast, market. This means that National LEV will not have a 
    NOX penalty when compared to OTC State adopted Section 177 
    Programs. A National LEV fleet, made up primarily of LEV vehicles, will 
    have similar effects on NOX emissions when compared to a CAL 
    LEV fleet consisting primarily of LEV and ULEV vehicles since both 
    types of vehicles have the same NOX emission standards. The 
    provision limiting manufacturers' sale in the NTR of Tier 1 vehicles 
    and TLEVs based on Calfornia certification also provides additional 
    assurance. A staff report on SFTP revisions issued by the California 
    Air Resources Board offers further support for EPA's decision to drop 
    the five percent cap requirement. In this report, CARB states that 
    their cost estimates assume that the entire California new motor 
    vehicle fleet will be certified to LEV or more stringent standards by 
    MY 2001, although they note that ``in actuality, staff estimates that 
    something less than five percent of new motor vehicles will be 
    certified to the Tier 1 and TLEV emission standards by the 2001 model 
    year'' due to the stringency of the fleet average NMOG standard in 
    California.56 For all these reasons, EPA believes that any 
    sales of Tier 1 vehicles and TLEVs in the NTR after MY2000 will make up 
    less than five percent of the fleet in any instance, and does not 
    believe having a separate requirement to ensure such sales limits is 
    needed.
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        \56\ Staff Report: Public Hearing to Consider Adoption of New 
    Certification Tests and Standards to Control Exhaust Emissions from 
    Aggressive Driving and Air-Conditioner Usage for Passenger Cars, 
    Light-Duty Trucks, and Medium-Duty Vehicles under 8501 Pounds Gross 
    Vehicle Weight Rating. State of California, California Environmental 
    Protection Agency, Air Resources Board, July, 1997.
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        Finally, even if there were some benefit to the NTR from a five-
    percent cap, EPA believes the benefit would be so minimal that it would 
    not justify the administrative burden given the single trading region 
    that applies after MY2000. Requiring compliance demonstrations with the 
    five-percent cap would negate any administrative savings associated 
    with the All State Trading Region for 2001 and later model years and 
    the provision allowing manufacturers to demonstrate compliance through 
    production data. Moreover, retention of the five-percent cap would not 
    provide any additional assurance that National LEV will continue to 
    provide a quantity of emissions reductions at least equivalent to the 
    quantity that would be provided by OTC State Section 177 Programs as 
    demonstrated through EPA's periodic equivalency determination. The 
    mobile source emissions model used in the original equivalency 
    determination, including fleet make-up in the OTR, will be used as part 
    of the equivalency determination, unless all parties agree to use an 
    updated modeling methodology. Modifications made to the model in the 
    course of a periodic equivalency determination would take into account 
    changes in EPA's rules and regulations and implementation of such rules 
    and regulations, not changes in the emissions inventory assumptions 
    used in the original equivalency determination.
    
    G. Technical Corrections to Final Framework Rule
    
        The Agency is also making several minor technical corrections to 
    the National LEV regulations issued in the Final Framework Rule. A June 
    24, 1997 letter from the American Automobile Manufacturers Association 
    (AAMA) and Association of International Automobile Manufacturers (AIAM) 
    (available in the public docket for review) suggests a number of 
    technical corrections to the regulations EPA promulgated on June 6, 
    1997. The corrections detailed by AAMA/AIAM have been reviewed by EPA 
    and incorporated in today's rule to the extent that they are necessary 
    and appropriate. In addition, a number of changes must be made to 
    reflect the start of the program in MY1999, rather than MY1997, which 
    was used as a placeholder in the Final Framework Rule. These revisions 
    are detailed in the Response to Comments document for today's Final 
    Rule.
        In the Final Framework Rule, EPA required manufacturers to track 
    vehicles
    
    [[Page 959]]
    
    to the ``point of first sale'' for purposes of determining compliance 
    with fleet average NMOG standards (62 FR 31212, June 6, 1997). EPA 
    defined ``point of first sale'' as ``the location where the completed 
    LDV or LDT is purchased'' and it ``may be a retail customer, dealer, or 
    secondary manufacturer.'' See 40 CFR 86.1702-97(b). EPA recognized that 
    requiring manufacturers to always track vehicle sales to the ultimate 
    purchaser would add an additional burden on manufacturers without 
    having any significant effect on air quality.
        Requiring manufacturers to track vehicles to the point of first 
    sale was intended to impose similar requirements on manufacturers as 
    those associated with EPA's Tier 1 standard phase-in compliance 
    requirements found in 40 CFR 86.094-8 and 86.094-9. In the Tier 1 
    program, manufacturers could demonstrate compliance ``based on total 
    actual U.S. sales of light-duty vehicles of the applicable model year 
    by a manufacturer to a dealer, distributor, fleet operator, broker, or 
    any other entity which comprises the point of first sale.'' See 40 CFR 
    86.094-8(a)(1)(i)(B)(1)(i). EPA believes the National LEV vehicle sales 
    tracking requirements operate in the same manner as those found in the 
    Tier 1 regulations, but the auto manufacturers have notified EPA of 
    their concern that National LEV imposes different requirements. 
    (Document available in docket A-95-26.)
        To eliminate confusion about the required level of vehicle tracking 
    necessary to demonstrate compliance with National LEV fleet average 
    NMOG standards, today's final rule modifies the definition of ``point 
    of first sale'' in the National LEV program such that it is equivalent 
    to the ``point of first sale'' language found in the Tier 1 
    regulations. EPA did not intend to limit ``point of first sale'' 
    entities to those specifically listed in the National LEV regulations. 
    EPA also does not intend to limit a manufacturer to tracking vehicles 
    only to the point of first sale if a manufacturer decides further 
    tracking gives it a more accurate account of vehicle sales in the 
    different trading regions or if a manufacturer's current vehicle 
    tracking system is set up to track vehicles beyond the point of first 
    sale. However, as noted in the Final Framework Rule, EPA does not 
    believe this additional level of tracking vehicles is necessary.
    
    H. Clarifications to Final Framework Rule
    
        Based on comments and other letters submitted by the auto 
    manufacturers, EPA believes that some provisions and discussions in the 
    Final Framework Rule and preamble could cause confusion. Thus, EPA is 
    taking the opportunity here to clarify a few issues addressed in the 
    Final Framework Rule.
    1. Operation of National LEV Vehicles on In-Use Fuels
        In the Final Framework Rule EPA reiterated a set of three 
    principles originally presented in the October 10, 1995 NPRM. These 
    principles, agreed upon by representatives of the auto industry, some 
    segments of the oil industry, and the OTC States, stated:
        (1) Adoption of the National LEV program does not impose unique 
    gasoline requirements on any state. Gasoline specified for use by any 
    state will have the same effect on the National LEV program as on the 
    OTC LEV program.
        (2) Testing is needed to evaluate the effects of non-California 
    gasoline on emissions control systems.
        (3) If testing results show a significant effect, EPA will conduct 
    a multi-party process to resolve the issue without adversely affecting 
    SIP credits or actual emission reductions when compared to OTC LEV 
    using fuels available in the OTR or imposing obligations on 
    manufacturers different from the obligations they would have had under 
    OTC LEV.
        The Agency continues to hold to these principles, but at the 
    request of some members of the auto industry EPA will clarify some 
    related statements made in the Final Framework Rule. As noted in the 
    Final Framework Rule, EPA anticipates that auto manufacturers will take 
    advantage of the option to certify vehicles under the National LEV 
    program using California Phase II reformulated gasoline (62 FR 31219, 
    June 6, 1997). Consequently, vehicles will be designed by auto 
    manufacturers to achieve the applicable emission standards using fuel 
    meeting the California specifications. Under the National LEV Program, 
    vehicles in actual use will be using the range of fuels commercially 
    available across the country. In the preamble to the final regulations, 
    EPA stated that ``section 86.1705-97(g)(5) [renumbered as 86.1701(d) in 
    today's rule] requires auto manufacturers to design National LEV 
    vehicles to operate on fuels that are otherwise required under 
    applicable federal regulations.'' In this context, the use of the word 
    ``operate'' refers to the overall performance of the vehicle, such as 
    starting, acceleration, etc. It is not intended to convey that a 
    gasoline-powered vehicle using commercially available fuel outside 
    California would necessarily achieve the same emissions performance as 
    it would using the relatively cleaner fuel required in California. 
    Nonetheless, the emission reductions potentially realized by the 
    National LEV program remain significant relative to the alternative of 
    a fleet of Tier 1 vehicles operating on the same commercially-available 
    fuels.57 To clarify another provision, 40 CFR 86.1701(d) 
    does not require manufacturers to design methanol, ethanol, electric, 
    compressed natural gas, or propane vehicles to operate on gasoline or 
    any alternative fuel other than the type (methanol, ethanol, 
    electricity, etc.) of fuel for which it was designed.
    ---------------------------------------------------------------------------
    
        \57\ The auto and oil industries are currently conducting 
    studies designed to quantify the emissions performance of LEV-type 
    vehicles when operated on gasoline with varius levels of sulfur. The 
    data tabulation and associated analyses for these studies are not 
    yet completed.
    ---------------------------------------------------------------------------
    
    2. Clarification of Banking and Trading Provisions
        In the Final Framework Rule, EPA included a limitation on the 
    nature of the emissions credits recognized under the National LEV 
    program. (See 40 CFR 86.1710(c)(10).) In the preamble, EPA stated that, 
    as with other emission credits or allowances recognized under the Act, 
    any emissions credits generated under the National LEV program are not 
    the holder's property, but instead are a limited authorization to emit 
    the designated amount of emissions. Consequently, nothing in the 
    National LEV regulations or any other provision of law should be 
    construed to limit EPA's authority to terminate or limit this 
    authorization through a rulemaking. In their comments, manufacturers 
    expressed their concern that this provision might affect the status of 
    the National LEV averaging, banking and trading provisions as a Core 
    Stable Standard, which, if EPA made certain changes to those 
    provisions, would allow the manufacturers to opt out of the National 
    LEV program.
        The limitation at issue is a standard provision for EPA emissions 
    trading programs. EPA believes it is important to make it clear that 
    while emissions credits can be generated, banked, bought and sold 
    pursuant to regulatory authorization, they do not constitute property. 
    Rather, they are only a limited authorization to emit a designated 
    amount of emissions. In establishing a credit trading system, EPA is 
    providing an alternative means of compliance with statutory or 
    regulatory limits on emissions. In authorizing the generation and use 
    of emissions credits, EPA has in no way given up its regulatory 
    authority to limit emissions further by modifying either the underlying 
    regulatory
    
    [[Page 960]]
    
    emission limitations or the way they may be achieved through generation 
    or use of emissions credits. As a consequence, if EPA were to modify 
    the provisions relating to emissions credits under National LEV, the 
    Agency would not be subject to challenge on the grounds that its action 
    was a taking of private property protected under the Fifth Amendment to 
    the U.S. Constitution.
        However, the limits on the nature of emissions credits included in 
    the Final Framework Rule are not intended to affect the opt-out 
    provisions of the National LEV program. If EPA modified any of the 
    National LEV banking and trading provisions in a manner that triggered 
    an offramp based on a change to a Stable Standard, the manufacturers 
    would be able to opt out of National LEV. In stating the limited nature 
    of emissions credits, EPA only intended to preserve its regulatory 
    authority to make regulatory changes affecting such credits, in the 
    unlikely event that EPA decided such changes were appropriate. Section 
    86.1710(c)(10) does not nullify either the designation of the banking 
    and trading provisions as a Core Stable Standard or the manufacturers' 
    ability to opt out if EPA changes them over a manufacturer objection. 
    Nevertheless, to clarify further its intent, EPA is adding the 
    following language to the end of 40 CFR 86.1710(c)(10): ``If EPA were 
    to terminate or limit the authorization to emit associated with 
    emissions credits generated under the provisions of this section, this 
    paragraph (c)(10) would have no effect on manufacturers' ability to opt 
    out of the National LEV program pursuant to Sec. 86.1707.''
    3. Recordkeeping Requirements
        Under the final National LEV regulations, EPA may void certificates 
    ab initio only for a manufacturer's failure to retain records or 
    provide such information as specified upon request. EPA will enforce 
    most of the other National LEV requirements through conditioning the 
    certificate and identifying individual noncomplying vehicles in the 
    event of a violation.
        EPA has determined that the authority to void certificates ab 
    initio for major record-keeping and reporting violations is an 
    important enforcement mechanism for programs in which compliance must 
    be demonstrated using data held by manufacturers. For many flexible 
    compliance schemes, such as averaging, banking and trading approaches 
    or phase-ins of requirements, the absence of records and reports on how 
    the regulated entities complied could preclude EPA from enforcing the 
    underlying substantive requirements. For example, EPA could never prove 
    that a particular vehicle violates a fleet average or a phase-in by 
    testing that vehicle; enforcement of a fleet average or a phase-in 
    depends on accurate records for the entire fleet. Thus, in return for 
    giving regulated parties some flexibility in meeting the requirements, 
    EPA must have a mechanism to ensure that the manufacturers keep the 
    records and make the reports necessary to verify compliance.
        In their comments, the manufacturers expressed concerns about EPA's 
    authority to void ab initio certificates for recordkeeping or reporting 
    violations. As discussed above, EPA believes that this enforcement 
    mechanism is an important tool to ensure compliance with the provisions 
    of the National LEV program such as averaging, banking, and trading of 
    fleet average NMOG credits and debits. However, EPA does not intend to 
    use this authority for every recordkeeping or reporting violation which 
    might occur under the National LEV regulations. Most violations will 
    likely be minor, such as submitting late reports or not providing all 
    of the required information, and would be considered violations of 
    section 203(a)(1) of the Act, subjecting the manufacturer to applicable 
    civil penalties. EPA would only void a certificate ab initio for the 
    most egregious record-keeping and reporting violations, where a 
    manufacturer's records or reporting are so substantially incomplete 
    that EPA cannot determine compliance with the fleet average NMOG 
    standard or other substantive requirements. EPA regulations currently 
    provide for voiding certificates ab initio for record-keeping and 
    reporting violations for several motor vehicle requirements with some 
    compliance flexibility. (See e.g., Tier 1 (40 CFR 86.094-23), and 
    evaporative emissions (40 CFR 86.096-23)). Both precedent and practical 
    enforcement concerns support providing this strong penalty as a 
    critical means to ensure the enforceability of underlying substantive 
    requirements.
    
    IX. Supplemental Federal Test Procedures
    
    A. Background
    
        The Federal Test Procedure (FTP) is the vehicle test procedure 
    historically used by EPA and the California Air Resources Board (CARB) 
    to determine the compliance of light-duty vehicles and light-duty 
    trucks with the conventional or ``on-cycle'' exhaust emission 
    standards. Using the FTP, emissions performance is tested while the 
    vehicle is driven over a ``typical'' driving schedule (a pattern of 
    acceleration and deceleration over a given period of time), using a 
    dynamometer to simulate the vehicle-to-road interface. Pursuant to the 
    requirements of section 206(h) of the CAA, EPA has promulgated 
    revisions to the Federal Test Procedure to make the test procedure 
    better represent the manner in which vehicles are actually driven (61 
    FR 54852, October 22, 1996). These revisions added the Supplemental 
    Federal Test Procedure (SFTP) with accompanying emission standards. The 
    SFTP emission standards promulgated by EPA are appropriate for vehicles 
    meeting EPA's Tier 1 emission standards. EPA did not propose LEV-
    stringency standards as part of its FTP revisions. In addition, the 
    earlier National LEV final rulemaking (62 FR 31192, June 6, 1997) did 
    not include LEV-stringency standards for the SFTP test procedure.
        EPA and CARB coordinated closely their review of the FTP, their 
    research efforts, and the development of their respective off-cycle 
    policies. On April 23, 1997, CARB published a proposal detailing their 
    approach to addressing off-cycle emissions in the State of 
    California.\58\ Following a comment period that remained open through 
    May 6, 1997, CARB released a notice of public hearing accompanied by a 
    staff report regarding its proposed adoption of SFTP test procedures 
    and standards (``Staff Report'').\59\ The CARB proposal had four basic 
    elements to it: test procedures, emission standards for LEVs and ULEVs, 
    emission standards for Tier 1 vehicles and TLEVs, and a phase-in 
    schedule. CARB adopted SFTP requirements largely consistent with their 
    proposal at a public hearing on July 24, 1997, then subsequently 
    released a Notice of Public Availability of Modified Text for a 15 day 
    comment period on September 5, 1997 (``15-day Notice'').\60\
    ---------------------------------------------------------------------------
    
        \58\ Draft Regulatory Measure to Control Emissions During Non-
    Federal Test Procedure Driving Conditions From Passenger Cars, 
    Light-Duty Trucks and Medium-Duty Vehicles Under 8,500 Pounds Gross 
    Vehicle Weight Rating, Mail-Out #MSC 97-06, April 23, 1997. 
    Available in the public docket for review, and also at http://
    arbis.arb.ca.gov/msprog/macmail/macmail.htm.
        \59\ Notice of Public Hearing to Consider Adoption of New 
    Certification Tests and Standards to Control Emissions from 
    Aggressive Driving and Air-Conditioner Usage for Passenger Cars, 
    Light-Duty Trucks, and Medium-Duty Vehicles Under 8,501 Pounds Gross 
    Vehicles Weight Rating, Mail Out #97-13, May 27, 1997. Available in 
    the public docket for review, and also at http://arbis.arb.ca.gov/
    msprog/macmail/macmail.htm#msc9713.
        \60\ Notice of Public Availability of Modified Text: Public 
    Hearing to Consider Adoption of New Certification Tests and 
    Standards to Control Emissions from Aggressive Driving and Air- 
    Conditioner Usage for Passenger Cars, Light-Duty Trucks, and Medium-
    Duty Vehicles under 8,501 Pounds Gross Vehicle Weight Rating, Mail-
    Out # MSC 97-17, September 5, 1997. Available in the public docket 
    for review, and also at http:///www.arb.ca.gov/msprog/macmail/
    macmail.htm.
    
    ---------------------------------------------------------------------------
    
    [[Page 961]]
    
        EPA stated in the National LEV Final Framework Rule its intent to 
    harmonize the SFTP requirements of the National LEV program with 
    California, and proposed to do so in the SNPRM once California 
    completed the adoption of such requirements under its LEV program. As 
    CARB has completed the adoption of SFTP requirements into its LEV 
    program, today's rule harmonizes the CARB and National LEV SFTP 
    programs.\61\ The following sections address this harmonization, 
    including changes made as a result of CARB's public hearing on July 24, 
    1997 and as published in their 15-day Notice, as well as those changes 
    resulting from public comments received on EPA's SNPRM. A more detailed 
    discussion of the SFTP standards and test procedures can be found in 
    the SNPRM (62 FR 44782, August 22, 1997).
    ---------------------------------------------------------------------------
    
        \61\ Based on comments from AAMA/AIAM with which EPA agrees, a 
    practical result of making this change is that the list of Non-Core 
    Stable Standards in 40 CFR 86.1707(d) must be updated to reflect the 
    change in emphasis from the federal SFTP to the California SFTP. 
    Today's regulations thus incorporate the California SFTP as a Non-
    Core Stable Standard.
    ---------------------------------------------------------------------------
    
    B. Elements of the CARB Proposal and Applicability Under National LEV
    
    1. Test Procedure
        CARB adopted high speed, high acceleration, and air conditioner 
    supplemental test procedures that are in all respects identical to the 
    procedures adopted by EPA. In fact, CARB incorporated by reference the 
    federal regulations for SFTP test procedures. Therefore, as proposed in 
    the SNPRM, the SFTP test procedures for all vehicles covered by 
    National LEV are those currently contained in federal regulations (40 
    CFR 86.158, 86.159, 86.160, 86.161, 86.162, 86.163, and 86.164).
    2. Emission Standards
        California adopted two sets of emission standards, one applicable 
    to LEVs, ULEVs, and super ULEVs (SULEVs), and the other applicable to 
    Tier 1 vehicles and TLEVs. However, the only SULEVs in CARB's 
    regulations are in their Medium-Duty Vehicle category, a class of 
    vehicles not covered by the National LEV Program, and consequently not 
    covered in the following discussion of emission standards or in today's 
    regulations. In addition to the items discussed below, today's final 
    rule makes several changes to be consistent with changes announced at 
    CARB's hearing and published in their 15-day Notice. These include 
    revisions to the language regarding ``A/C-on Specific Calibrations'' 
    found in the regulations in paragraphs 86.1708(e)(3) and 86.1709(e)(3), 
    and revisions to the ``Lean-On-Cruise'' Calibration Strategies language 
    found in paragraphs 86.1708(e)(4) and 86.1709(e)(4).
    a. LEVs and ULEVs
        For each of the affected vehicle weight categories, CARB adopted a 
    set of SFTP certification standards that applies to LEVs and ULEVs (see 
    Table 1). These standards apply only to gasoline, diesel, and fuel-
    flexible vehicles while operating on gasoline or diesel fuel. These 
    standards apply at 4,000 miles, and in conjunction with the low-mileage 
    standards, CARB provides for no in-use vehicle compliance requirements 
    (recall testing) for SFTP standards. Today's rule adopts the standards 
    shown in Table 1 as the SFTP standards applicable to LEVs and ULEVs 
    covered under the National LEV Program. These standards apply to the 
    National LEV Program in the same manner as adopted by CARB, in that 
    they apply at 4,000 miles and there will be no in-use enforcement to 
    these SFTP standards for LEVs and ULEVs. For further information and 
    justification for this approach, see the SNPRM (62 FR 44783-44784, 
    August 22, 1997).
        A commenter pointed out that the proposed regulations contained 
    incorrect SFTP standards for light-duty trucks from 3751 to 5750 pounds 
    loaded vehicle weight (the preamble to the proposed regulations 
    contained the correct standards). This error has been corrected in 
    today's final rule.
    
                      Table 1--US06 and SC03 4,000 Mile Certification Standards for LEVs and ULEVs                  
    ----------------------------------------------------------------------------------------------------------------
                                                                               US06  (g/mi)               SC03  (g/ 
                                                                 ---------------------------------------     mi)    
           Vehicle type           Loaded vehicle weight  (lbs.)                                         ------------
                                                                    NMHC+NOX        CO        NMHC+NOX        CO    
    ----------------------------------------------------------------------------------------------------------------
    LDV.......................  All.............................         0.14          8.0         0.20          2.7
    LDT.......................  0-3,750.........................         0.14          8.0         0.20          2.7
                                3,751-5,750.....................         0.25         10.5         0.27          3.5
    ----------------------------------------------------------------------------------------------------------------
    
    b. Tier 1 Vehicles and TLEVs
        CARB's final SFTP standards for Tier 1 vehicles and TLEVs are 
    identical to those promulgated by EPA for Tier 1 vehicles. As under the 
    federal regulations, these standards apply at 50,000 and 100,000 miles, 
    and vehicles certifying to these standards face an in-use compliance 
    requirement. Additionally, CARB also maintains EPA's higher 
    NMHC+NOx standard for diesel vehicles, as well as EPA's 
    exemption of alternative fuel Tier 1 vehicles and TLEVs from compliance 
    with the SFTP standards. As proposed in the SNPRM, today's final rule 
    adopts CARB's treatment of Tier 1 vehicles and TLEVs.
    3. Implementation Schedule
        Today's final rule also adopts CARB's four year implementation 
    schedule for SFTP emission standards, which requires compliance of 100 
    percent of the fleet by MY2004. Beginning with a minimum of 25 percent 
    of the fleet in MY2001, the schedule then requires 50 and 85 percent in 
    MY2002 and MY2003, respectively. Although Tier 1 vehicles and TLEVs are 
    certified to standards of different stringency than LEVs and ULEVs, 
    CARB allows the number of vehicles from both groups to be combined for 
    the purpose of determining compliance with the phase-in schedule. 
    However, CARB ensures an adequate phase-in of LEVs and ULEVs complying 
    with the SFTP by requiring that the percentage of LEVs and ULEVs 
    meeting the SFTP requirements also meet the required phase-in schedule. 
    This means that meeting the phase-in percentage with the subset of the 
    fleet made up of LEVs and ULEVs will also meet the overall phase-in 
    requirement if a manufacturer has no Tier 1 vehicles or TLEVs. If a 
    manufacturer does have some Tier 1 or TLEV engine families, it would 
    have the choice of certifying some proportion of those vehicles to the
    
    [[Page 962]]
    
    SFTP standards or expending some effort phasing in additional LEV or 
    ULEV engine families in order to maintain compliance with the phase-in 
    requirements. Consistent with the SNPRM, today's rule adopts the same 
    SFTP implementation schedule finalized by CARB, including provisions 
    consistent with the methodology noted above.
        To provide some additional flexibility, CARB uses a concept of 
    equivalent phase-in schedules, which are allowed in place of the 
    required phase-in schedule. This approach allows manufacturers to use 
    an alternative phase-in schedule providing that the alternative 
    measures up to the required schedule according to a set methodology. 
    The equivalent phase-in methodology calculates credits by weighting the 
    required phase-in percentages in each model year of the phase-in 
    schedule by the number of model years prior to and including the last 
    model year of the scheduled phase-in, then summing these credits over 
    the phase-in period. These ``credits'' are calculated for the required 
    phase-in schedule. In the case of the CARB SFTP phase-in, the required 
    ``credits'' are: (25% * 4 years) + (50% * 3 years) + (85% * 2 years) + 
    (100% * 1 year) = 520. Any alternative phase-in that results in an 
    equal or larger cumulative total number of credits by the end of the 
    last model year of the scheduled phase-in is acceptable. This allows 
    manufacturers some additional flexibility while ensuring no loss in 
    overall emissions over the phase-in schedule. Additionally, using this 
    methodology, manufacturers can gain credits towards their phase-in 
    through early introductions of vehicles meeting the applicable 
    requirement even prior to the beginning of the required phase-in (e.g., 
    10 percent compliance five years before full phase-in gains 50 
    ``points'' towards the total required). Regardless of the number of 
    ``points'' earned by a given alternative schedule, phase-in of 100% 
    must be achieved in the required final year of the phase-in. CARB made 
    one change to this element of the SFTP in the 15-day Notice, adding 
    language that requires manufacturers who choose to use an alternative 
    phase-in schedule to submit the schedule they intend to use ``before or 
    during calendar year 2001 for passenger cars and light-duty trucks and 
    calendar year 2003 for medium-duty vehicles.'' Today's rule adopts an 
    alternative phase-in schedule methodology consistent with the 
    methodology adopted by CARB, including the changes contained in the 15-
    day Notice.
        As proposed in the SNPRM, this alternative phase-in schedule will 
    be enforced much like the current enforcement provisions regarding non-
    compliance with a phase-in schedule. Specifically, failure to attain 
    the required credits will be regarded as a failure to satisfy the 
    conditions on which the certificate was issued. Vehicles sold in 
    violation of that condition will not be covered by the certificate and 
    hence will be subject to the currently available penalties. Today's 
    regulations contain appropriate revisions to 40 CFR 86.096-30 to 
    implement this approach.
    4. Implementation Compliance
        To determine manufacturer compliance with the SFTP phase-in levels 
    under the National LEV program, EPA proposed to give the manufacturers 
    the option of combining their entire fleet of light-duty vehicles and 
    light light-duty trucks such that this combined fleet meets the 
    applicable phase-in requirements. EPA also proposed to have 
    manufacturers demonstrate compliance with the phase-in requirements 
    based on vehicles sold outside California, but requested comment on 
    having compliance determinations based on vehicles sold only in 
    California or in all states.
        As noted in the SNPRM, EPA supports allowing manufacturers to 
    combine light-duty vehicles and light-duty trucks into one fleet for 
    the purpose of the SFTP phase-in requirements. This approach is 
    consistent with CARB's implementation of the SFTP phase-in, and is the 
    approach contained in today's final rule. However, EPA noted in the 
    SNPRM some concerns with allowing manufacturers to show compliance with 
    National LEV SFTP requirements based on a manufacturer's California 
    fleet mix as opposed to its National LEV fleet mix. AAMA/AIAM commented 
    that manufacturers have already planned which products will be meeting 
    the early-term SFTP requirements in California, and that using national 
    sales volumes would cause changes in their phase-in plans without 
    adequate lead time, creating an undue burden. Based on this, as well as 
    on this commenter's definition of harmonization (``identical in every 
    aspect to the California requirements''), AAMA/AIAM expressed support 
    for the option of using California sales volumes to assess compliance 
    with the SFTP phase-in schedule.
        EPA has decided to adopt language in today's rule that addresses 
    the concerns heard from the auto companies by basing the SFTP phase-in 
    compliance on vehicle sales in California. EPA understands the 
    implications of requiring a separate phase-in for vehicles outside 
    California, and agrees that the burden of requiring such a phase-in is 
    unnecessary. However, EPA is adding language to the SFTP phase-in under 
    National LEV to assure that SFTP vehicles are not underrepresented in 
    states outside of California. Given that the phase-in will be 
    demonstrated using California sales, unique cases could potentially 
    arise whereby the California version of a vehicle is certified to the 
    SFTP but the version distributed federally is not. Without some 
    protective language in the regulations, there would be no obligation or 
    requirement for the version marketed in the 49 states outside 
    California to comply with the SFTP, and although the phase-in would be 
    met in California, certainly the potential exists for the rest of the 
    country to fall unacceptably short of the phase-in percentage. To 
    protect against this type of scenario, yet to allow auto manufacturers 
    the flexibility of only having to demonstrate compliance with the 
    phase-in in California, EPA is adding the additional requirement that, 
    for every engine family certified to SFTP standards in California, the 
    ``sibling'' of that vehicle certified under the National LEV program 
    outside California must also be certified to the SFTP standards. 
    Today's regulations define the relationship between California and 
    federal ``sibling'' vehicles as vehicles of the same make and model, 
    and with the same number of cylinders, the same cylinder configuration, 
    the same cylinder volume, the same transmission class, and the same 
    axle ratio. However, the ability to use California sales to demonstrate 
    phase-in compliance applies only to those years of the phase-in with a 
    less than 100 percent compliance requirement (MY2001-2003). When 
    California is scheduled to achieve 100 percent compliance with the SFTP 
    in MY2004, the National LEV fleet must also have attained 100 percent 
    compliance in that model year.
    
    X. Administrative Requirements
    
    A. Administrative Designation
    
        Under Executive Order 12866 (58 FR 51735), the Agency must 
    determine whether the regulatory action is ``significant'' and 
    therefore subject to OMB review and the requirements of the Executive 
    Order. The Order defines a ``significant regulatory action'' as one 
    that is likely to result in a rule that may:
        (1) have an annual effect on the economy of $100 million or more or 
    adversely affect in a material way the
    
    [[Page 963]]
    
    economy, a sector of the economy, productivity, competition, jobs, the 
    environment, public health or safety, or State, local, or tribal 
    governments or communities;
        (2) create a serious inconsistency or otherwise interfere with an 
    action taken or planned by another agency;
        (3) materially alter the budgetary impact of entitlements, grants, 
    user fees, or loan programs or the rights and obligations of recipients 
    thereof; or
        (4) raise novel legal or policy issues arising out of legal 
    mandates, the President's priorities, or the principles set forth in 
    the Executive Order.
        Pursuant to the terms of Executive Order 12866, it has been 
    determined that this rule is not a ``significant regulatory action'' 
    because the regulations in this rule will not have annual impacts on 
    the economy that are likely to exceed $100 million. This rule, along 
    with the Final Framework Rule, sets forth the National LEV program 
    regulations. The Final Framework Rule was determined to be a 
    significant regulatory action. See 62 FR 31231 and the Regulatory 
    Impact Analysis. EPA has submitted this rule to OMB for review. Changes 
    made in response to OMB suggestions or recommendations will be 
    documented in the public record. EPA has updated the Regulatory Impact 
    Analysis (RIA) prepared for the Final Framework Rule. Changes reflect 
    the current program start dates, updated cost information, and other 
    changes to the emissions reduction modeling as discussed in Sec. IV.
    
    B. Regulatory Flexibility
    
        EPA has determined that it is not necessary to prepare a regulatory 
    flexibility analysis in connection with this rule. EPA has also 
    determined that this rule will not have a significant economic impact 
    on a substantial number of small entities. Only manufacturers of motor 
    vehicles, a group which does not contain a substantial number of small 
    entities, will have to comply with the requirements of this rule.
    
    C. Unfunded Mandates Reform Act
    
        Under sections 202 and 205 of the Unfunded Mandates Reform Act of 
    1995 (UMRA), EPA generally must prepare a written statement to 
    accompany any proposed or final rule that includes a federal mandate 
    that may result in expenditures by state, local, or tribal governments 
    in the aggregate, or by the private sector, of $100 million or more in 
    any one year.
        EPA has determined that the written statement requirements of 
    sections 202 and 205 of UMRA do not apply to today's rule, and thus do 
    not require EPA to conduct further analyses pursuant to those 
    requirements. National LEV is not a federal mandate because it does not 
    impose any enforceable duties and because it is a voluntary program. 
    Because National LEV would not impose a federal mandate on any party, 
    section 202 does not apply to this rule. Even if these unfunded 
    mandates provisions did apply to this rule, they are met by the 
    Regulatory Impact Analysis prepared pursuant to Executive Order 12866 
    and contained in the docket.
        Section 203 requires EPA to establish a plan for informing and 
    advising any small governments that may be significantly or uniquely 
    impacted by the rule. EPA has not prepared such a plan because small 
    governments would not be significantly or uniquely impacted by the 
    rule.
    
    D. Congressional Review of Agency Rulemaking
    
        Under section 801(a)(1)(A) of the Administrative Procedure Act 
    (APA) as amended by the Small Business Regulatory Enforcement Reform 
    Act of 1996, EPA has submitted a report containing this rule and other 
    required information to the U.S. Senate, the U.S. House of 
    Representatives, and the Comptroller General of the General Accounting 
    Office prior to publication of the rule in today's Federal Register. 
    Today's rule is not a ``major rule'' as defined in section 804(2) of 
    the APA, as amended.
    
    E. Reporting and Recordkeeping Requirements
    
        The Office of Management and Budget (OMB) has approved the 
    information collection requirements contained in this rule under the 
    provisions of the Paperwork Reduction Act, 44 U.S.C. 3501 et seq. and 
    has assigned OMB control number 2060-0345.
        The information collection would be conducted to support the 
    averaging, banking and trading provisions included in the National LEV 
    program. These averaging, banking and trading provisions would give 
    automobile manufacturers a measure of flexibility in meeting the fleet 
    average NMOG standards. EPA would use the reported data to calculate 
    credits and debits and otherwise ensure compliance with the applicable 
    production levels. When a manufacturer has opted into the voluntary 
    National LEV program, reporting would be mandatory as per the 
    regulations included in this rulemaking. This rulemaking would not 
    change the requirements regarding confidentiality claims for submitted 
    information, which are generally set out in 40 CFR part 2.
        The information collection burden associated with this rule 
    (testing, record keeping and reporting requirements) is estimated to 
    average 241.3 hours annually for a typical manufacturer. It is expected 
    that approximately 25 manufacturers will provide an annual report to 
    EPA. However, the hours spent annually on information collection 
    activities by a given manufacturer depends upon manufacturer-specific 
    variables, such as the number of engine families, production changes, 
    emissions defects, and so forth.
        Burden means the total time, effort, or financial resouces expended 
    by persons to generate, maintain, retain, or disclose or provide 
    information to or for a Federal agency. This estimate also includes the 
    time needed to: review instructions; develop, acquire, install, and 
    utilize technology and systems for the purposes of collecting, 
    validating, and verifying information, processing and maintaining 
    information, and disclosing and providing information; adjust the 
    existing ways to comply with any previously applicable instructions and 
    requirements; train personnel to be able to respond to a collection of 
    information; search data sources; complete and review the collection of 
    information; and transmit or otherwise disclose the information.
        An Agency may not conduct or sponsor, and a person is not required 
    to respond to a collection of information unless it displays a 
    currently valid OMB control number. The OMB control numbers for EPA's 
    regulations are listed in 40 CFR part 9 and 48 CFR chapter 15. EPA is 
    amending the table in 40 CFR Part 9 of currently approved ICR numbers 
    issued by OMB for various regulations to list the information 
    requirements contained in this rule.
        Send comments on the Agency's need for this information, the 
    accuracy of the provided burden estimates, and any suggested methods 
    for minimizing respondent burden, including through the use of 
    automated collection techniques to the Director, OPPE Regulatory 
    Information Division; U.S. Environmental Protection Agency (2137); 401 
    M St., S.W., Washington, D.C. 20460; and to the Office of Information 
    and Regulatory Affairs, Office of Management and Budget, 725 17th St., 
    N.W., Washington, D.C. 20503, marked ``Attention: Desk Officer for 
    EPA.'' Include the ICR number in any correspondence.
    
    F. Effective Date
    
        This rule is effective upon the date of publication. This expedited 
    effective
    
    [[Page 964]]
    
    date is necessary to provide effective final regulations to guide the 
    process for the OTC States and auto manufacturers to opt into the 
    National LEV program in time for the program to begin in model year 
    1999. Given their planning and production schedules, manufacturers have 
    informed EPA that the Agency must find National LEV in effect early in 
    the 1998 calendar year, at the latest, to allow them to comply with the 
    National LEV requirements for MY1999 vehicles. This requires that the 
    OTC States and the manufacturers complete the opt-in process as soon as 
    possible. While the timing for opt-ins is based on the signature date 
    of the rule, rather than its effective date, it would not be 
    appropriate for parties to have to make the decision to opt in to the 
    program before this rule becomes effective, and if the effective date 
    of these regulations were delayed until thirty days from publication, 
    depending upon the length of time between signature and publication, it 
    is possible that the deadline for OTC State opt-ins would occur before 
    the rule became effective. In addition, because National LEV is a 
    voluntary program, this rule, by itself, does not place a burden on any 
    party. Rather, it provides an opportunity for the OTC States and the 
    manufacturers to avail themselves of the benefits of the National LEV 
    program and voluntarily to become subject to its requirements. Finally, 
    in the SNPRM, EPA took comment on the timing for parties to opt into 
    National LEV, and none of the parties potentially affected by the rule 
    objected to this timing. Given the lack of burden on affected parties 
    and the need to make this rule effective upon publication, the Agency 
    finds good cause for expediting the effective date of the rule. EPA 
    believes that this is consistent with 5 U.S.C. 553(d) (1) and (3).
    
    XI. Judicial Review
    
        Under section 307(b)(1) of the Act, EPA hereby finds that these 
    regulations are of national applicability. Accordingly, judicial review 
    of this action is available only by filing of a petition for review in 
    the United States Court of Appeals for the District of Columbia Circuit 
    within 60 days of publication in the Federal Register. Under section 
    307(b)(2) of the Act, the requirements which are the subject of today's 
    rule may not be challenged later in judicial proceedings brought by EPA 
    to enforce these requirements. This rulemaking and any petitions for 
    review are subject to the provisions of section 307(d) of the Clean Air 
    Act.
    
    XII. Statutory Authority
    
        The promulgation of these regulations is authorized by sections 
    177, 202, 203, 204, 205, 206, 207, 208, 209 and 301 of the Clean Air 
    Act as amended by the Clean Air Act Amendments of 1990 (CAAA) (42 
    U.S.C. 7507, 7521, 7522, 7523, 7524, 7525, 7541, 7542, 7543, and 
    7601).
    
    List of Subjects
    
    40 CFR Part 9
    
        Environmental protection, Reporting and recordkeeping requirements.
    
    40 CFR Part 85
    
        Confidential business information, Imports, Labeling, Motor vehicle 
    pollution, Reporting and recordkeeping requirements, Research, 
    Warranties.
    
    40 CFR Part 86
    
        Administrative practice and procedure, Confidential Business 
    Information, Incorporation by reference, Labeling, Motor vehicle 
    pollution, Reporting and recordkeeping requirements.
    
        Dated: December 16, 1997.
    Carol M. Browner,
    Administrator.
    
        For the reasons set out in the preamble, chapter I, title 40 of the 
    Code of Federal Regulations is amended as follows:
    
    PART 9--[AMENDED]
    
        1. The authority citation for part 9 continues to read as follows:
    
        Authority: 7 U.S.C. 135 et seq., 136-136y; 15 U.S.C. 2001, 2003, 
    2005, 2006, 2601-2671; 21 U.S.C. 331j, 346a, 348; 31 U.S.C. 9701; 33 
    U.S.C. 1251 et seq., 1311, 1313d, 1314, 1318, 1321, 1326, 1330, 
    1342, 1344, 1345 (d) and (e), 1361; E.O. 11735, 38 FR 21243, 3 CFR, 
    1971-1975 Comp., p. 973; 42 U.S.C. 241, 242b, 243, 246, 300f, 300g, 
    300g-1, 300g-2, 300g-3, 300g-4, 300g-5, 300g-6, 300j-1, 300j-2, 
    300j-3, 300j-4, 300j-9, 1857 et seq., 6901-6992k, 7401-7671q, 7542, 
    9601-9657, 11023, 11048.
    
        2. The table in Sec. 9.1 is amended by adding the new entries in 
    numerical order under the indicated heading to read as follows:
    
    
    Sec. 9.1  OMB approvals under the Paperwork Reduction Act.
    
    * * * * *
    
    ------------------------------------------------------------------------
                                                                 OMB control
                          40 CFR citation                            No.    
    ------------------------------------------------------------------------
                      *        *        *        *        *                 
    Control of Air Pollution From New and In-Use Motor Vehicles             
     and New and In-Use Motor Vehicle Engines: Certification                
     and Test Procedures:                                                   
                      *        *        *        *        *                 
        86.1705................................................    2060-0345
        86.1707................................................    2060-0345
        86.1708................................................    2060-0345
        86.1709................................................    2060-0345
        86.1710................................................    2060-0345
        86.1712................................................    2060-0345
        86.1713................................................    2060-0345
        86.1714................................................    2060-0345
        86.1717................................................    2060-0345
        86.1721................................................    2060-0345
        86.1723................................................    2060-0345
        86.1724................................................    2060-0345
        86.1725................................................    2060-0345
        86.1726................................................    2060-0345
        86.1728................................................    2060-0345
        86.1734................................................    2060-0345
        86.1735................................................    2060-0345
        86.1770................................................    2060-0345
        86.1771................................................    2060-0345
        86.1776................................................    2060-0345
        86.1777................................................    2060-0345
        86.1778................................................    2060-0345
                      *        *        *        *        *                 
    ------------------------------------------------------------------------
    
    PART 85--CONTROL OF AIR POLLUTION FROM MOTOR VEHICLES AND MOTOR 
    VEHICLE ENGINES
    
        3. The authority citation for part 85 continues to read as follows:
    
        Authority: 42 U.S.C. 7521, 7522, 7524, 7525, 7541, 7542, and 
    7601(a).
    
    Subpart P--[Amended]
    
        4. Section 85.1515 is amended by revising paragraph (c) to read as 
    follows:
    
    
    Sec. 85.1515  Emission standards and test procedures applicable to 
    imported nonconforming motor vehicles and motor vehicle engines.
    
    * * * * *
        (c) Nonconforming motor vehicles or motor vehicle engines of 
    1994 OP model year and later conditionally imported pursuant to 
    Sec. 85.1505 or Sec. 85.1509 shall meet all of the emission 
    standards specified in 40 CFR part 86 for the model year in which 
    the motor vehicle or motor vehicle engine is modified. At the option 
    of the ICI, the nonconforming motor vehicle may comply with the 
    emissions standards in 40 CFR 86.1708-99 or 86.1709-99, as 
    applicable to a light-duty vehicle or light light-duty truck, in 
    lieu of the otherwise applicable emissions standards specified in 40 
    CFR part 86 for the model year in which the nonconforming motor 
    vehicle is modified. The provisions of 40 CFR 86.1710-99 do not 
    apply to imported nonconforming motor vehicles. The useful life 
    specified in 40 CFR part 86 for the model year in which the motor 
    vehicle or motor
    
    [[Page 965]]
    
    vehicle engine is modified is applicable where useful life is not 
    designated in this subpart.
    * * * * *
    
    PART 86--CONTROL OF AIR POLLUTION FROM NEW AND IN-USE MOTOR 
    VEHICLES AND NEW AND IN-USE MOTOR VEHICLE ENGINES: CERTIFICATION 
    AND TEST PROCEDURES
    
        5. The authority citation for part 86 continues to read as follows:
    
        Authority: 42 U.S.C. 7401-7671(q).
    
        6. Section 86.1 is amended by revising the entry for ASTM E29-90 in 
    the table in paragraph (b)(1) and by revising the entry to the table in 
    paragraph (b)(4), to read as follows:
    
    
    Sec. 86.1  Reference materials.
    
    * * * * *
        (b) * * *
        (1) * * *
    
    ------------------------------------------------------------------------
             Document number and name             40 CFR part 86 reference  
    ------------------------------------------------------------------------
                      *        *        *        *        *                 
    ASTM E29-90, Standard Practice for Using    86.609-84; 86.609-96; 86.609-
     Significant Digits in Test Data to          97; 86.609-98; 86.1009-84; 
     Determine Conformance with Specifications.  86.1009-96; 86.1442;       
                                                 86.1708-99; 86.1709-99;    
                                                 86.1710-99; 86.1728-99     
                      *        *        *        *        *                 
    ------------------------------------------------------------------------
    
        (4) *        *        *
    
    ------------------------------------------------------------------------
               Document no. and name              40 CFR part 86 reference  
    ------------------------------------------------------------------------
                      *        *        *        *        *                 
    California Regulatory Requirements          86.612-97; 86.1012-97;      
     Applicable to the National Low Emission     86.1702-99; 86.1708-99;    
     Vehicle Program, October, 1996.             86.1709-99; 86.1717-99;    
                                                 86.1735-99; 86.1771-99;    
                                                 86.1775-99; 86.1776-99;    
                                                 86.1777-99; Appendix XVI;  
                                                 Appendix XVII.             
                      *        *        *        *        *                 
    ------------------------------------------------------------------------
    
    Subpart A--[Amended]
    
        7. Section 86.096-30 is amended by reserving paragraph (a)(22) and 
    by adding paragraphs (a)(23) and (a)(24), to read as follows:
    
    
    Sec. 86.096-30  Certification.
    
    * * * * *
        (a) * * *
        (22) [Reserved]
        (23)(i) The Administrator will issue a National LEV certificate of 
    conformity for 1999 model year vehicles or engines certified to comply 
    with the California TLEV, LEV, or ULEV emission standards.
        (ii) This certificate of conformity shall be granted after the 
    Administrator has received and reviewed the California Executive Order 
    a manufacturer has received for the same vehicles or engines.
        (iii) Vehicles or engines receiving a certificate of conformity 
    under the provisions in this paragraph can only be sold in the states 
    included in the NTR, as defined in Sec. 86.1702, and those states where 
    the sale of California-certified vehicles is otherwise authorized.
        (24)(i) The Administrator will issue a National LEV certificate of 
    conformity for 2000 model year vehicles or engines certified to comply 
    with the California TLEV emission standards.
        (ii) This certificate of conformity shall be granted after the 
    Administrator has received and reviewed the California Executive Order 
    a manufacturer has received for the same vehicles or engines.
        (iii) Vehicles or engines receiving a certificate of conformity 
    under the provisions in this paragraph can only be sold in the states 
    included in the NTR, as defined in Sec. 86.1702, and those states where 
    the sale of California-certified vehicles is otherwise authorized.
    * * * * *
    
    
    Sec. 86.097-1  [Redesignated as Sec. 86.099-1]
    
        8. Section 86.097-1 is redesignated as Sec. 86.099-1 and revised to 
    read as follows:
    
    
    Sec. 86.099-1  General applicability.
    
        Section 86.099-1 includes text that specifies requirements that 
    differ from those specified in Sec. 86.094-1. Where a paragraph in 
    Sec. 86.094-1 is identical and applicable to Sec. 86.099-1, this may be 
    indicated by specifying the corresponding paragraph and the statement 
    ``[Reserved]. For guidance see Sec. 86.094-1.''.
        (a) through (b) [Reserved]. For guidance see Sec. 86.094-1.
        (c) National Low Emission Vehicle Program for light-duty vehicles 
    and light light-duty trucks. A manufacturer may elect to certify 1999 
    and later model year light-duty vehicles and light light-duty trucks to 
    the provisions of the National Low Emission Vehicle Program contained 
    in subpart R of this part. Subpart R of this part is applicable only to 
    those manufacturers that opt into the National Low Emission Vehicle 
    Program, under the provisions of that subpart, and that have not 
    exercised a valid opt-out from the National Low Emission Vehicle 
    Program, which opt-out has gone into effect under the provisions of 
    Sec. 86.1707. All provisions of this subpart are applicable to vehicles 
    certified pursuant to subpart R of this part, except as specifically 
    noted in subpart R of this part.
        (d) [Reserved]
        (e) through (f) [Reserved]. For guidance see Sec. 86.094-1.
    
    Subpart B--[Amended]
    
        9. Section 86.101 is amended by revising paragraph (c) to read as 
    follows:
    
    
    Sec. 86.101  General applicability.
    
    * * * * *
        (c) National Low Emission Vehicle Program for light-duty vehicles 
    and light light-duty trucks. A manufacturer may elect to certify 1999 
    and later model year light-duty vehicles and light light-duty trucks to 
    the provisions of the National Low Emission Vehicle Program contained 
    in subpart R of this part. Subpart R of this part is applicable only to 
    those manufacturers that opt into the National Low Emission Vehicle 
    Program, under the provisions of subpart R of this part, and that have 
    not exercised a valid opt-out from the National Low Emission Vehicle 
    Program, which opt-out has gone into effect under the provisions of 
    Sec. 86.1707. All provisions of this subpart are applicable to vehicles 
    certified pursuant to subpart R of this part, except as specifically 
    noted in subpart R of this part.
    
    Subpart R--[Amended]
    
        10. The table of contents to subpart R is revised to read as 
    follows:
    
    Subpart R--General Provisions for the Voluntary National Low 
    Emission Vehicle Program for Light-Duty Vehicles and Light-Duty 
    Trucks
    
    Sec.
    86.1701-99  General applicability.
    86.1702-99  Definitions.
    86.1703-99  Abbreviations.
    86.1704-99  Section numbering; construction.
    86.1705-99  General provisions; opt-in.
    86.1706-99  National LEV program in effect.
    86.1707-99  General provisions; opt-outs.
    86.1708-99  Exhaust emission standards for 1999 and later light-duty 
    vehicles.
    86.1709-99  Exhaust emission standards for 1999 and later light 
    light-duty trucks.
    86.1710-99  Fleet average non-methane organic gas exhaust emission 
    standards for light-duty vehicles and light light-duty trucks.
    86.1711-99  Limitations on sale of Tier 1 vehicles and TLEVs.
    86.1712-99  Maintenance of records; submittal of information.
    
    [[Page 967]]
    
    86.1713-99  Light-duty exhaust durability programs.
    86.1714-99  Small-volume manufacturers certification procedures.
    86.1715-99  [Reserved]
    86.1716-99  Prohibition of defeat devices.
    86.1717-99  Emission control diagnostic system for 1999 and later 
    light-duty vehicles and light-duty trucks.
    86.1718-99  through 86.1720-99  [Reserved]
    86.1721-99  Application for certification.
    86.1722-99  [Reserved]
    86.1723-99  Required data.
    86.1724-99  Test vehicles and engines.
    86.1725-99  Maintenance.
    86.1726-99  Mileage and service accumulation; emission measurements.
    86.1727-99  [Reserved]
    86.1728-99  Compliance with emission standards.
    86.1729-99  through 86.1733-99  [Reserved]
    86.1734-99  Alternative procedure for notification of additions and 
    changes.
    86.1735-99  Labeling.
    86.1736-99  through 86.1769-99  [Reserved]
    86.1770-99  All-Electric Range Test requirements.
    86.1771-99  Fuel specifications.
    86.1772-99  Road load power, test weight, and inertia weight class 
    determination.
    86.1773-99  Test sequence; general requirements.
    86.1774-99  Vehicle preconditioning.
    86.1775-99  Exhaust sample analysis.
    86.1776-99  Records required.
    86.1777-99  Calculations; exhaust emissions.
    86.1778-99  Calculations; particulate emissions.
    86.1779-99  General enforcement provisions.
    86.1780-99  Prohibited acts.
    
    
    Sec. 86.1701-97  [Redesignated as Sec. 86.1701-99 and Amended]
    
        11. Section 86.1701-97 is redesignated as Sec. 86.1701-99 and 
    amended by revising paragraphs (a) and (c) and by adding paragraph (d), 
    to read as follows:
    
    
    Sec. 86.1701-99  General applicability.
    
        (a) The provisions of this subpart may be adopted by vehicle 
    manufacturers pursuant to the provisions specified in Sec. 86.1705. The 
    provisions of this subpart are generally applicable to 1999 and later 
    model year light-duty vehicles and light light-duty trucks to be sold 
    in the Northeast Trading Region, and 2001 and later model year light-
    duty vehicles and light light-duty trucks to be sold in the United 
    States. In cases where a provision applies only to certain vehicles 
    based on model year, vehicle class, motor fuel, engine type, vehicle 
    emission category, intended sales destination, or other distinguishing 
    characteristics, such limited applicability is cited in the appropriate 
    section or paragraph. The provisions of this subpart shall be referred 
    to as the ``National Low Emission Vehicle Program'' or ``National LEV'' 
    or ``NLEV.''
    * * * * *
        (c) The requirements of this subpart apply to new vehicles 
    manufactured by covered manufacturers through model year 2003. In 
    addition, the requirements of this subpart apply to new vehicles 
    manufactured by covered manufacturers for model years prior to the 
    first model year for which a mandatory federal exhaust emissions 
    program for light-duty vehicles and light light-duty trucks is at least 
    as stringent as the National LEV program with respect to NMOG, 
    NOX, and CO exhaust emissions, as determined by the 
    Administrator, provided that such a program is promulgated no later 
    than December 15, 2000, and is effective no later than model year 2006.
        (d) Adoption of the National LEV program does not impose gasoline 
    or other in-use fuel requirements and is not intended to require any 
    new federal or state regulation of fuels. Vehicles under National LEV 
    will be able to operate on any fuels, including conventional gasoline, 
    that, in the absence of the National LEV program, could be sold under 
    federal or state law.
    
    
    Sec. 86.1702-97  [Redesignated as Sec. 86.1702-99 and Amended]
    
        12. Section 86.1702-97 is redesignated as Sec. 86.1702-99 and 
    amended in paragraph (b) by revising the definitions for ``Averaging 
    sets,'' ``Core Stable Standards,'' ``Non-Core Stable Standards,'' 
    ``Northeast Trading Region,'' and ``Point of first sale'' and by adding 
    new definitions in alphabetical order for ``All States Trading 
    Region,'' ``Axle Ratio,'' ``Covered state,'' ``Existing ZEV Mandate,'' 
    ``Ozone Transport Commission States,'' ``Section 177 Program,'' and 
    ``ZEV Mandate,'' to read as follows:
    
    
    Sec. 86.1702-99  Definitions.
    
    * * * * *
        (b) * * *
    * * * * *
        All States Trading Region (ASTR) means the region comprised of all 
    states except the OTC States that have not opted into National LEV 
    pursuant to the opt-in provisions at Sec. 86.1705 or that have opted 
    out of National LEV and whose opt-outs have become effective, as 
    provided at Sec. 86.1707; California; and any state outside the OTR 
    with a Section 177 Program in effect that does not allow National LEV 
    as a compliance alternative.
    * * * * *
        Averaging sets are the categories of LDVs and LDTs for which the 
    manufacturer calculates a fleet average NMOG value. The four averaging 
    sets for fleet average NMOG value calculation purposes are:
        (1) Class A delivered to a point of first sale in the Northeast 
    Trading Region;
        (2) Class A delivered to a point of first sale in the All States 
    Trading Region;
        (3) Class B delivered to a point of first sale in the Northeast 
    Trading Region;
        (4) Class B delivered to a point of first sale in the All States 
    Trading Region.
    * * * * *
        Axle ratio means the number of times the input shaft to the 
    differential (or equivalent) turns for each turn of the drive wheels.
    * * * * *
        Core Stable Standards means the standards and other requirements 
    listed in Sec. 86.1707(d)(9)(i) (A) through (F).
    * * * * *
        Covered state means a state that meets the conditions specified 
    under Sec. 86.1705(d).
    * * * * *
        Existing ZEV Mandate means any state regulation or other law that 
    imposes (or purports to impose) obligations on auto manufacturers to 
    produce, deliver for sale, or sell a certain number or percentage of 
    ZEVs and that was adopted prior to December 16, 1997.
    * * * * *
        Non-Core Stable Standards means the standards and other 
    requirements listed in Sec. 86.1707(d)(9)(i) (G) through (L).
    * * * * *
        Northeast Trading Region (NTR) means the region comprised of the 
    states that meet the conditions specified under Sec. 86.1705(d).
    * * * * *
        Ozone Transport Commission States or OTC States means the States of 
    Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, 
    New Jersey, New York, Pennsylvania, Rhode Island, Vermont and Virginia, 
    and the District of Columbia.
    * * * * *
        Point of first sale is the location where the completed light-duty 
    vehicle or light-duty truck is purchased, also known as the final 
    product purchase location. The point of first sale may be a retail 
    customer, dealer, distributor, fleet operator, broker, secondary 
    manufacturer, or any other entity which comprises the point of first 
    sale. In cases where the end user purchases the completed vehicle 
    directly from the
    
    [[Page 967]]
    
    manufacturer, the end user is the point of first sale.
    * * * * *
        Section 177 Program means state regulations or other laws, except 
    ZEV Mandates, that apply to any of the following categories of motor 
    vehicles: passenger cars, light-duty trucks up through 6,000 pounds 
    GVWR, and medium-duty vehicles from 6,001 to 14,000 pounds GVWR if 
    designed to operate on gasoline, as these categories of motor vehicles 
    are defined in the California Code of Regulations, Title 13, Division 
    3, Chapter 1, Article 1, Section 1900.
    * * * * *
        ZEV Mandate means any state regulation or other law that imposes 
    (or purports to impose) obligations on auto manufacturers to produce, 
    deliver for sale, or sell a certain number or percentage of ZEVs.
    
    
    Sec. 86.1703-97  [Redesignated as Sec. 86.1703-99 and Amended]
    
        13. Section 86.1703-97 is redesignated as Sec. 86.1703-99 and 
    amended in paragraph (b) by adding ``ASTR'' and ``OTC'' as new 
    abbreviations in alphabetical order, to read as follows:
    
    
    Sec. 86.1703-99  Abbreviations.
    
    * * * * *
        (b) * * *
    * * * * *
        ASTR--All States Trading Region
    * * * * *
        OTC--Ozone Transport Commission
    * * * * *
    
    
    Sec. 86.1704-97  [Redesignated as Sec. 87.1704-99 and Amended]
    
        14. Section 86.1704-97 is redesignated as Sec. 86.1704-99.
    
    
    Sec. 86.1705-97  [Redesignated as Sec. 86.1705-99 and Amended]
    
        15. Section 86.1705-97 is redesignated as Sec. 86.1705-99 and 
    amended by revising the heading of the section, by revising paragraphs 
    (a) introductory text, (a)(2), (a)(3), and (b) through (g), to read as 
    follows:
    
    
    Sec. 86.1705-99  General provisions; opt-in.
    
        (a) Covered manufacturers. Covered manufacturers must comply with 
    the provisions in this subpart, and in addition, must comply with the 
    requirements of 40 CFR parts 85 and 86. A manufacturer shall be a 
    covered manufacturer if:
    * * * * *
        (2) Where a manufacturer has included a condition on opt-in 
    provided for in paragraph (c)(2) of this section, that condition has 
    been satisfied; and
        (3) The manufacturer has not opted out, pursuant to Sec. 86.1707, 
    or the manufacturer has opted out but that opt-out has not become 
    effective under Sec. 86.1707.
        (b) Covered manufacturers must comply with the standards and 
    requirements specified in this subpart beginning in model year 1999. A 
    manufacturer not listed in Sec. 86.1706(c) that opts into the program 
    after EPA issues a finding pursuant to Sec. 86.1706(b) that the program 
    is in effect must comply with the standards and requirements of this 
    subpart beginning in the model year named for the calendar year after 
    the calendar year in which EPA receives the manufacturer's opt-in. 
    Light-duty vehicles and light light-duty trucks sold by covered 
    manufacturers must comply with the provisions of this subpart.
        (c) Manufacturer opt-ins. (1) To opt into the National LEV program, 
    a motor vehicle manufacturer must submit a written opt-in notification 
    to the Administrator signed by a person or entity within the 
    corporation or business with authority to bind the corporation or 
    business to its election and holding the position of vice president for 
    environmental affairs or a position of comparable or greater authority. 
    The manufacturer shall send a copy of this notification to : Director, 
    Vehicles Programs and Compliance Division; U.S. Environmental 
    Protection Agency; 2565 Plymouth Road; Ann Arbor, Michigan, 48105. The 
    notification must unambiguously and unconditionally (apart from the 
    permissible conditions specified in paragraph (c)(2) of this section) 
    indicate the manufacturer's agreement to opt into the program and be 
    subject to the provisions in this subpart, and include the following 
    language:
    
        XX COMPANY, its subsidiaries, successors and assigns hereby opts 
    into the voluntary National LEV program, as set forth in 40 CFR part 
    86, subpart R, and agrees to be legally bound by all of the 
    standards, requirements and other provisions of the National LEV 
    program. XX COMPANY commits not to challenge EPA's authority to 
    establish or enforce the National LEV program, and commits not to 
    seek to certify any vehicle except in compliance with the 
    regulations in subpart R.
    
        (2) The opt-in notification may indicate that the manufacturer opts 
    into the program subject to either or both of the following conditions:
        (i) That the Administrator finds under Sec. 86.1706 that the 
    National LEV program is in effect, to be indicated with the following 
    language:
    
        This opt-in is subject to the condition that the Administrator 
    make a finding pursuant to 40 CFR 86.1706 that the National LEV 
    program is in effect.
    
        (ii) That certain states (limited to the OTC States) and/or motor 
    vehicle manufacturers opt into National LEV pursuant to Sec. 86.1705, 
    to be indicated with the following language (language in brackets 
    indicates that either or both formulations are acceptable):
    
        This opt-in is subject to the condition that [each of the states 
    of [list state names]/[and] each of the following manufacturers 
    [list manufacturer names]] opt into National LEV pursuant to 40 CFR 
    86.1705.
    
        (3) A manufacturer shall be considered to have opted in upon the 
    Administrator's receipt of the opt-in notification and satisfaction of 
    the conditions set forth in paragraph (c)(2) of this section, if 
    applicable.
        (d) Covered states. An OTC State shall be a covered state if:
        (1) The state has opted into National LEV pursuant to paragraph (e) 
    of this section;
        (2) Where a state has included a condition on opt-in provided for 
    in paragraph (e)(3)(viii) of this section, that condition has been 
    satisfied; and
        (3) The state has not opted out, pursuant to Sec. 86.1707, or the 
    state has opted out but that opt-out has not become effective under 
    Sec. 86.1707.
        (e) OTC State opt-ins. To opt into the National LEV program, a 
    state must submit an opt-in notification to the Administrator, with a 
    copy to Director, Vehicle Programs and Compliance Division; U.S. 
    Environmental Protection Agency; 2565 Plymouth Road; Ann Arbor, 
    Michigan, 48105. The notification must contain the following or 
    substantively identical language:
        (1)(i) An Executive Order signed by the governor of the state (or 
    the mayor of the District of Columbia) that unambiguously and 
    unconditionally (apart from the permissible conditions set forth in 
    this section) indicates the state's agreement to opt into the National 
    LEV program and includes the following language (language in brackets 
    indicates that either formulation is acceptable):
    
        This Executive Order [commits STATE to/opts STATE into] the 
    National Low Emission Vehicle (National LEV) program, in accordance 
    with the EPA National LEV program regulations at 40 CFR part 86, 
    subpart R.
        I hereby direct HEAD OF APPROPRIATE STATE AGENCY to forward to 
    EPA with my concurrence the [enclosed letter signed/enclosed letter 
    and proposed regulations signed and proposed] by the HEAD OF 
    APPROPRIATE STATE AGENCY, which [specifies/specify] the details of 
    STATE's commitment to the National LEV program.
        I hereby direct APPROPRIATE STATE AGENCY to follow the 
    procedures prescribed
    
    [[Page 968]]
    
    by the general statutes of STATE to take the necessary steps to 
    adopt regulations and submit a state implementation plan (SIP) 
    revision committing STATE to National LEV in accordance with the EPA 
    National LEV program regulations on SIP revisions at 40 CFR part 86, 
    subpart R, and with section 110 of the Clean Air Act and its 
    implementing regulations at 40 CFR parts 51 and 52.
    
        (ii) States with Existing ZEV Mandates may add language to the 
    Executive Order submitted pursuant to this paragraph (e)(1) confirming 
    that this opt-in will not affect the state's requirements pertaining to 
    ZEVs.
        (2)(i) If a state does not submit an Executive Order pursuant to 
    paragraph (e)(1) of this section, a letter signed by the governor of 
    the state (or the mayor of the District of Columbia) that unambiguously 
    and unconditionally (apart from the permissible conditions set forth in 
    this section) indicates the state's agreement to opt into the National 
    LEV program and includes the following language (language in brackets 
    indicates that either formulation is acceptable):
    
        This submittal is made in accordance with the EPA National Low 
    Emission Vehicle (National LEV) regulations at 40 CFR part 86, 
    subpart R to [commit STATE to/opt STATE into] the National LEV 
    program.
        [I am forwarding to EPA the [enclosed letter signed enclosed 
    letter and proposed regulations which were signed and proposed] by 
    HEAD OF APPROPRIATE STATE AGENCY at my direction, and which 
    [specifies/specify] the details of STATE's commitment to the 
    National LEV program. I am forwarding to EPA and concur with the 
    [enclosed letter signed/enclosed letter and proposed regulations 
    signed and proposed] by HEAD OF APPROPRIATE STATE AGENCY, which 
    [specifies/specify] the details of STATE's commitment to the 
    National LEV program.]
        I [hereby direct/have directed] APPROPRIATE STATE AGENCY to 
    follow the procedures prescribed by the general statutes of STATE to 
    take the necessary steps to adopt regulations and submit a state 
    implementation plan (SIP) revision committing STATE to National LEV 
    in accordance with the EPA National LEV regulations on SIP revisions 
    at 40 CFR part 86, subpart R, and with section 110 of the Clean Air 
    Act and its implementing regulations at 40 CFR parts 51 and 52.
    
        (ii) States with Existing ZEV Mandates may add language to the 
    letter submitted pursuant to this paragraph (e)(2) confirming that this 
    opt-in will not affect the state's requirements pertaining to ZEVs.
        (3) A letter signed by the head of the appropriate state agency 
    that would unconditionally (except as set forth in this section) 
    include the following:
        (i) States without a Section 177 Program, or with a Section 177 
    Program but not an Existing ZEV Mandate, shall include the following 
    language:
    
        National LEV is designed as a compliance alternative for OTC 
    State programs adopted pursuant to section 177 of the Clean Air Act 
    that apply to passenger cars, light-duty trucks up through 6,000 
    pounds GVWR, and/or medium-duty vehicles from 6,001 to 14,000 pounds 
    GVWR if designed to operate on gasoline, as these categories of 
    motor vehicles are defined in the California Code of Regulations, 
    Title 13, Division 3, Chapter 1, Article 1, Section 1900. For the 
    duration of STATE's participation in National LEV, [STATE will allow 
    manufacturers to / manufacturers may] comply with National LEV or 
    equally stringent mandatory federal standards in lieu of compliance 
    with any program adopted by STATE pursuant to the authority provided 
    in section 177 of the Clean Air Act applicable to the vehicle 
    classes specified above, including any ZEV mandates. STATE's 
    participation in National LEV extends until model year 2006, except 
    as provided in 40 CFR 86.1707. If, no later than December 15, 2000, 
    the US EPA does not adopt standards at least as stringent as the 
    National LEV standards provided in 40 CFR part 86 subpart R that 
    apply to new motor vehicles in model year 2004, 2005 or 2006, 
    STATE's participation in National LEV extends only until model year 
    2004, except as provided in 40 CFR 86.1707.
        For the duration of STATE's participation in National LEV, STATE 
    [intends to/will] forbear from adopting and implementing a ZEV 
    mandate effective before model year 2006.
    
        (ii) States with a Section 177 Program and an Existing ZEV Mandate, 
    shall include the following language:
    
        National LEV is designed as a compliance alternative for OTC 
    State programs adopted pursuant to section 177 of the Clean Air Act 
    that apply to passenger cars, light-duty trucks up through 6,000 
    pounds GVWR, and medium-duty vehicles from 6,001 to 14,000 pounds 
    GVWR if designed to operate on gasoline, as these categories of 
    motor vehicles are defined in the California Code of Regulations, 
    Title 13, Division 3, Chapter 1, Article 1, Section 1900. With the 
    exception of any requirements pertaining to ZEVs, for the duration 
    of STATE's participation in National LEV, [STATE will allow 
    manufacturers to / manufacturers may] comply with National LEV or 
    equally stringent mandatory federal standards in lieu of compliance 
    with any program adopted by STATE pursuant to the authority provided 
    in section 177 of the Clean Air Act applicable to the vehicle 
    classes specified above. STATE's participation in National LEV 
    extends until model year 2006, except as provided in 40 CFR 86.1707. 
    If, no later than December 15, 2000, the US EPA does not adopt 
    standards at least as stringent as the National LEV standards 
    provided in 40 CFR part 86 subpart R that apply to new motor 
    vehicles in model year 2004, 2005 or 2006, STATE's participation in 
    National LEV extends only until model year 2004, except as provided 
    in 40 CFR 86.1707. Any existing or future requirement pertaining to 
    ZEVs is not affected by STATE's acceptance of National LEV as a 
    compliance alternative for other state requirements.
    
        (iii) All states shall include the following language:
    
        Based on EPA's determination in the preamble to the final 
    National LEV rule [CITE], STATE believes that National LEV will 
    achieve reductions of VOC and NOX emissions that are 
    equivalent to or greater than the reductions that would be achieved 
    through OTC State adoption of California Low Emission Vehicle 
    programs in the Ozone Transport Region.
    
        (iv) All states shall include the following language:
    
        STATE intends National LEV to be STATE's new motor vehicle 
    emissions control program.
    
        (v) All states shall include the following language:
    
        STATE recognizes that motor vehicle manufacturers are committing 
    to National LEV with the expectation that, until model year 2006 
    (or, under the circumstances specified above, model year 2004), the 
    OTC States that commit to the National LEV program will allow 
    National LEV as a compliance alternative for state programs adopted 
    pursuant to the authority provided in section 177 of the Clean Air 
    Act, applying to the vehicle classes specified above (except any 
    requirements pertaining to ZEVs in states with Existing ZEV 
    Mandates). It is our intent to abide by this commitment. [However, 
    the provisions of this letter will not have the force of law until 
    STATE adopts them as state regulations. / Regulations providing for 
    STATE's opt-in to National LEV have been approved for proposed 
    rulemaking by APPROPRIATE STATE AGENCY on [INSERT DATE]. However, 
    they will not have the force and effect of law until they are 
    approved as final regulations.] Adoption of state regulations and 
    the contents of a final state implementation plan revision will be 
    determined through a state rulemaking process pursuant to the state 
    requirements at [CITE to STATE law] and federal law. Also, STATE 
    must comply with any subsequent STATE legislation that might affect 
    this commitment.
    
        (vi) All states shall include the following language:
    
        If the manufacturers exit the National LEV program pursuant to 
    the EPA National LEV regulations at 40 CFR 86.1707, STATE 
    [acknowledges / provides in its proposed rule] that the transition 
    from National LEV requirements to any STATE program adopted pursuant 
    to the authority provided in section 177 of the Clean Air Act 
    applying to the vehicle classes specified above, including any 
    requirements pertaining to ZEVs (except any requirements pertaining 
    to ZEVs in states with Existing ZEV Mandates), will proceed in 
    accordance with the EPA National LEV regulations at 40 CFR 86.1707.
    
        (vii) All states shall include the following language:
    
        STATE supports the legitimacy of the National LEV program and 
    EPA's authority to promulgate the National LEV regulations.
    
    [[Page 969]]
    
        (viii) Any state may include the following language:
        [This [commitment/opt-in] / As provided in the proposed 
    regulations, STATE's opt-in] is conditioned on all motor vehicle 
    manufacturers (listed in EPA regulations at 40 CFR 86.1706(c)) 
    opting into National LEV and on EPA finding that National LEV is in 
    effect pursuant to 40 CFR 86.1706.
    
        (4) In lieu of statements described in paragraphs (e)(3)(i), 
    (e)(3)(ii) and (e)(3)(vi) of this section, states may submit proposed 
    regulations containing the provisions required under paragraphs (g)(1), 
    (g)(2), (g)(3), and (g)(5) of this section.
        (f) A state shall be considered to have opted in upon the 
    Administrator's receipt of the opt-in notification and satisfaction of 
    the conditions set forth in paragraph (e)(3)(viii) of this section, if 
    applicable.
        (g) Each OTC State that opts into National LEV pursuant to 
    paragraph (e) of this section shall submit a state implementation plan 
    (SIP) revision within one year and seventy-five days of December 16, 
    1997 except for the District of Columbia, New Hampshire, Delaware, and 
    Virginia, for which the deadline is 18 months and seventy-five days 
    from December 16, 1997. The SIP revisions shall include the following 
    using identical or substantively identical language:
        (1) Covered states without any Section 177 Program, or with a 
    Section 177 Program but not an Existing ZEV Mandate, shall submit 
    regulations containing the following language:
    
        For the duration of STATE's participation in National LEV, 
    manufacturers may comply with National LEV or equally stringent 
    mandatory federal standards in lieu of compliance with any program, 
    including any mandates for sales of zero emission vehicles (ZEVs), 
    adopted by STATE pursuant to the authority provided in section 177 
    of the Clean Air Act applicable to passenger cars, light-duty trucks 
    up through 6,000 pounds GVWR, and/or medium-duty vehicles from 6,001 
    to 14,000 pounds GVWR if designed to operate on gasoline, as these 
    categories of motor vehicles are defined in the California Code of 
    Regulations, Title 13, Division 3, Chapter 1, Article 1, Section 
    1900.
        STATE's participation in National LEV extends until model year 
    2006, except as provided in 40 CFR 86.1707. If, no later than 
    December 15, 2000, the US EPA does not adopt standards at least as 
    stringent as the National LEV standards provided in 40 CFR part 86 
    subpart R that apply to new motor vehicles in model year 2004, 2005 
    or 2006, STATE's participation in National LEV extends only until 
    model year 2004, except as provided in 40 CFR 86.1707.
    
        (2) Covered states with a Section 177 Program and an Existing ZEV 
    Mandate shall submit regulations containing the following language:
    
        With the exception of any STATE requirements pertaining to zero 
    emission vehicles (ZEVs), for the duration of STATE's participation 
    in National LEV, manufacturers may comply with National LEV or 
    equally stringent mandatory federal standards in lieu of compliance 
    with any program adopted by STATE pursuant to the authority provided 
    in section 177 of the Clean Air Act applicable to passenger cars, 
    light-duty trucks up through 6,000 pounds GVWR, and/or medium-duty 
    vehicles from 6,001 to 14,000 pounds GVWR if designed to operate on 
    gasoline, as these categories of motor vehicles are defined in the 
    California Code of Regulations, Title 13, Division 3, Chapter 1, 
    Article 1, Section 1900.
        STATE's participation in National LEV extends until model year 
    2006, except as provided in 40 CFR 86.1707. If, no later than 
    December 15, 2000, the US EPA does not adopt standards at least as 
    stringent as the National LEV standards provided in 40 CFR part 86 
    subpart R that apply to new motor vehicles in model year 2004, 2005 
    or 2006, STATE's participation in National LEV extends only until 
    model year 2004, except as provided in 40 CFR 86.1707.
        Any existing or future STATE requirement pertaining to ZEVs is 
    not affected by STATE's acceptance of National LEV as a compliance 
    alternative for other state requirements.
    
        (3) All covered states shall submit regulations containing the 
    following language:
    
        If a covered manufacturer, as defined at 40 CFR 86.1702, opts 
    out of the National LEV program pursuant to the EPA National LEV 
    regulations at 40 CFR 86.1707, the transition from National LEV 
    requirements to any STATE section 177 program applicable to 
    passenger cars, light-duty trucks up through 6,000 pounds GVWR, and/ 
    or medium-duty vehicles from 6,001 to 14,000 pounds GVWR if designed 
    to operate on gasoline, as these categories of motor vehicles are 
    defined in the California Code of Regulations, Title 13, Division 3, 
    Chapter 1, Article 1, Section 1900, will proceed in accordance with 
    the EPA National LEV regulations at 40 CFR 86.1707.
    
        (4) All covered states shall accompany the regulatory language with 
    the following language:
    
        STATE commits to support National LEV as an acceptable 
    alternative to state Section 177 Programs for the duration of 
    STATE's participation in National LEV.
        STATE recognizes that its commitment to National LEV is 
    necessary to ensure that National LEV remain in effect.
        STATE is submitting this SIP revision in accordance with the 
    applicable Clean Air Act requirements at section 110 and EPA 
    regulations at 40 CFR Part 86 and 40 CFR Parts 51 and 52.
    
        (5) States without Existing ZEV Mandates shall accompany the 
    regulatory language with the following language:
    
        For the duration of STATE's participation in National LEV, STATE 
    [intends to / will] forbear from adopting and implementing a ZEV 
    mandate effective prior to model year 2006. Notwithstanding the 
    previous sentence, if, no later than December 15, 2000, the US EPA 
    does not adopt standards at least as stringent as the National LEV 
    standards provided in 40 CFR part 86 subpart R that apply to new 
    motor vehicles in model year 2004, 2005 or 2006, STATE [intends to / 
    will] forbear from adopting and implementing a ZEV mandate effective 
    prior to model year 2004.
    
    
    Sec. 86.1706-97   [Redesignated as Sec. 86.1706-99]
    
        16. Section 86.1706-97 is redesignated as Sec. 86.1706-99 and is 
    revised to read as follows:
    
    
    Sec. 86.1706-99  National LEV program in effect.
    
        (a) No later than March 2, 1998, EPA shall issue a finding as to 
    whether National LEV is in effect. EPA shall base this finding on opt-
    in notifications from OTC States submitted pursuant to Sec. 86.1705(e) 
    and received by EPA January 30, 1998, and on opt-in notifications from 
    manufacturers submitted pursuant to Sec. 86.1705(c) and received by EPA 
    February 17, 1998.
        (b) EPA shall find that the National LEV program is in effect and 
    shall subsequently publish this determination if the following 
    conditions have been met:
        (1) All manufacturers listed in paragraph (c) of this section have 
    lawfully opted in pursuant to Sec. 86.1705(c) and any conditions placed 
    on the opt-ins allowed under Sec. 86.1705(c)(2) have been met (apart 
    from a condition that EPA find the National LEV program in effect);
        (2) Each OTC State that opts in has lawfully opted in pursuant to 
    Sec. 86.1705(e) and any conditions placed on opt-ins by OTC States that 
    are allowed under Sec. 86.1705(e)(3)(viii) have been met (apart from a 
    condition that EPA find the National LEV program in effect); and
        (3) No valid opt-out has become effective pursuant to Sec. 86.1707.
        (c) List of manufacturers of light-duty vehicles and light-duty 
    trucks:
    
    American Honda Motor Company, Inc.
    American Suzuki Motor Corporation
    BMW of North America, Inc.
    Chrysler Corporation
    Fiat Auto U.S.A., Inc.
    Ford Motor Company
    General Motors Corporation
    Hyundai Motor America
    Isuzu Motors America, Inc.
    Jaguar Motors Ltd.
    Kia Motors America, Inc.
    Land Rover North America, Inc.
    Mazda (North America) Inc.
    Mercedes-Benz of North America
    Mitsubishi Motor Sales of America, Inc.
    Nissan North America, Inc.
    
    [[Page 970]]
    
    Porsche Cars of North America, Inc.
    Rolls-Royce Motor Cars Inc.
    Saab Cars USA, Inc.
    Subaru of America, Inc.
    Toyota Motor Sales, U.S.A., Inc.
    Volkswagen of America, Inc.
    Volvo North America Corporation
    
        17. Section 86.1707-99 is added to subpart R to read as follows:
    
    
    Sec. 86.1707-99  General provisions; opt-outs.
    
        A covered manufacturer or covered state may opt out of the National 
    LEV program only according to the provisions of this section. Vehicles 
    certified under the National LEV program must continue to meet the 
    standards to which they were certified, regardless of whether the 
    manufacturer of those vehicles remains a covered manufacturer. A 
    manufacturer that has opted out remains responsible for any debits 
    outstanding on the effective date of opt-out, pursuant to 
    Sec. 86.1710(d)(3).
        (a) Procedures for opt-outs--manufacturers. To opt out of the 
    National LEV program, a covered manufacturer must notify the 
    Administrator as provided in Sec. 86.1705(c)(1), except that the 
    notification shall specify the condition and final action allowing opt-
    out, indicate the manufacturer's intent to opt out of the program and 
    no longer be subject to the provisions in this subpart, and specify an 
    effective date for the opt-out. The effective date shall be specified 
    in terms of the first model year for which the opt-out shall be 
    effective, but shall be no earlier than the applicable date indicated 
    in paragraphs (d) through (j) of this section. For an opt-out pursuant 
    to paragraph (d) of this section, the manufacturer shall specify the 
    revision triggering the opt-out and shall also provide evidence that 
    the triggering revision does not harmonize the standard or requirement 
    with a comparable California standard or requirement, if applicable, or 
    that the triggering revision has increased the stringency of the 
    revised standard or requirement, if applicable. The notification shall 
    include the following language:
    
        XX COMPANY, its subsidiaries, successors and assigns hereby opt 
    out of the voluntary National LEV program, as set forth in 40 CFR 
    part 86, subpart R.
    
        (b) Procedures for opt-outs--OTC states. To opt out of the National 
    LEV program, a covered state must notify the Administrator through a 
    written statement from the head of the appropriate state agency. A copy 
    of the notification shall be sent to the Director, Vehicle Programs and 
    Compliance Division; U.S. Environmental Protection Agency; 2565 
    Plymouth Road; Ann Arbor, Michigan, 48105. The notification shall 
    specify the final action allowing opt-out, indicate the state's intent 
    to opt out of the program and no longer be subject to the provisions in 
    this subpart, and specify an effective date for the opt-out. The 
    effective date shall be specified in terms of the first model year for 
    which the opt-out shall be effective, but shall be no earlier than the 
    applicable date indicated in paragraphs (d) through (k) of this 
    section. The notification shall include the following language:
    
        STATE hereby opts out of the voluntary National LEV program, as 
    set forth in 40 CFR part 86, subpart R.
    
        (c) Procedures for opt-outs--EPA notification. Upon receipt of an 
    opt-out notification under this section, EPA shall promptly notify the 
    covered states and covered manufacturers of the opt-out. Publication in 
    the Federal Register of notice of receipt of the opt-out notification 
    is sufficient but not necessary to meet EPA's obligation to notify 
    covered states and covered manufacturers.
        (d) Conditions allowing manufacturer opt-outs--change to Stable 
    Standards. A covered manufacturer may opt out if EPA promulgates a 
    final rule or takes other final agency action making a revision not 
    specified in paragraph (d)(9)(iii) of this section to a standard or 
    requirement listed in paragraph (d)(9)(i) of this section and the 
    covered manufacturer objects to the revision.
        (1) A covered manufacturer may opt out within 180 calendar days of 
    the EPA action allowing opt-out under this paragraph (d). A valid opt-
    out based on a revision to a Core Stable Standard shall be effective no 
    earlier than the model year named for the calendar year following the 
    calendar year in which EPA receives the manufacturer's opt-out 
    notification. A valid opt-out based on a revision to a Non-Core Stable 
    Standard may become effective no earlier than the first model year to 
    which that revision applies.
        (i) Only a covered manufacturer that objects to a revision may opt 
    out if EPA adopts that revision, except that if such a manufacturer 
    opts out, other manufacturers that did not object to the revision may 
    also opt out pursuant to paragraph (j) of this section. An objection 
    shall be sufficient for this purpose only if it was filed during the 
    public comment period on the proposed revision and the objection states 
    that the proposed revision is sufficiently significant to allow opt-out 
    under this paragraph (d).
        (ii) [Reserved]
        (2) Within sixty days of receipt of an opt-out notification under 
    this paragraph (d), EPA shall determine whether the opt-out is valid by 
    determining whether the alleged condition allowing opt-out has occurred 
    and whether the opt-out complies with the requirements under paragraphs 
    (a) and (d) of this section. An EPA determination regarding the 
    validity of an opt-out is not a rule, but is a nationally applicable 
    final agency action subject to judicial review pursuant to section 
    307(b) of the Clean Air Act (42 U.S.C. 7607(b)).
        (3) A manufacturer that has submitted an opt-out notification to 
    EPA under this paragraph (d) remains a covered manufacturer until the 
    opt-out has come into effect under paragraph (d)(1) of this section and 
    EPA or a reviewing court determines that the opt-out is valid.
        (4) In the event that a manufacturer petitions for judicial review 
    of an EPA determination that an opt-out is invalid, the manufacturer 
    remains a covered manufacturer until final judicial resolution of the 
    petition. Pending resolution of the petition, and starting with the 
    model year for which the opt-out would have come into effect under 
    paragraph (d)(1) of this section if EPA had determined the opt-out was 
    valid, the manufacturer may certify vehicles to any standards in this 
    part applicable to vehicles certified in that model year and sell such 
    vehicles without regard to the limitations contained in Sec. 86.1711. 
    However, if the opt-out is finally determined to be invalid, the 
    manufacturer will be liable for any failure to comply with 
    Secs. 86.1710 through 86.1712.
        (5) Upon the effective date of a manufacturer's opt-out under this 
    paragraph (d), that manufacturer shall be subject to all requirements 
    (except ZEV Mandates) that would apply to a manufacturer that had not 
    opted into the National LEV program, including all applicable standards 
    and other requirements promulgated under title II of the Clean Air Act 
    (42 U.S.C. 7521 et seq.) and any state standards and other requirements 
    (except ZEV Mandates) in effect pursuant to section 177 of the Clean 
    Air Act (42 U.S.C. 7507). For any state Section 177 Program that 
    allowed National LEV as a compliance alternative and was adopted at 
    least two years before the effective date of a manufacturer's opt-out, 
    a manufacturer waives its right under section 177 of the Clean Air Act 
    to two years of lead time to the extent that the effective date of its 
    opt-out provides for less than two years of lead time and to the extent 
    such a waiver is necessary. With respect to ZEV Mandates, the 
    manufacturer will
    
    [[Page 971]]
    
    not be deemed to have waived its two-year lead time under section 177 
    of the Clean Air Act. A manufacturer shall not be subject to any ZEV 
    Mandates (except Existing ZEV Mandates) in OTC States until the model 
    year (as defined in part 85, subpart X) that commences two years after 
    the date of EPA's receipt of the manufacturer's opt-out notice.
        (6) If a covered manufacturer opts out under this paragraph (d), 
    any covered state that is not a violating state under paragraph (e), 
    (f), (g) or (h) of this section may opt out within 90 calendar days of 
    the date of either an EPA finding that the opt-out is valid, or a 
    judicial ruling that a disputed opt-out is valid. The state's opt-out 
    notification shall specify an effective date for the state's opt-out no 
    earlier than two calendar years after the date of EPA's receipt of the 
    state's opt-out notification and shall provide that the opt out is not 
    effective for model years (as defined in part 85, subpart X) that 
    commence prior to this effective date.
        (7) In a state that opts out pursuant to paragraph (d)(6) of this 
    section, obligations under National LEV shall be unaffected for covered 
    manufacturers until the effective date of the state's opt-out. Upon the 
    effective date of the state's opt-out, in that state covered 
    manufacturers shall comply with any state standards and other 
    requirements in effect pursuant to section 177 of the Clean Air Act or, 
    if such state standards are not in effect, with all requirements that 
    would apply to a manufacturer that had not opted into the National LEV 
    program, including all applicable standards and other requirements 
    promulgated under title II of the Clean Air Act (42 U.S.C. 7521 et 
    seq.).
        (8) In a state that has not opted out, obligations under National 
    LEV shall be unaffected for covered manufacturers.
        (9)(i) The following are the emissions standards and requirements 
    that, if revised, may provide covered manufacturers the opportunity to 
    opt out pursuant to paragraph (d)(1) of this section:
        (A) The tailpipe emissions standards for NMOG, NOx, CO, 
    HCHO, and PM specified in Sec. 86.1708(b) and (c) and Sec. 86.1709(b) 
    and (c);
        (B) Fleet average NMOG standards and averaging, banking and trading 
    provisions specified in Sec. 86.1710;
        (C) Provisions regarding limitations on sale of Tier 1 vehicles and 
    TLEVs contained in Sec. 86.1711;
        (D) The compliance test procedure (Federal Test Procedure) as 
    specified in subparts A and B of this part, as used for determining 
    compliance with the exhaust emission standards specified in 
    Sec. 86.1708(b) and (c) and Sec. 86.1709(b) and (c);
        (E) The compliance test fuel, as specified in Sec. 86.1771;
        (F) The definition of low volume manufacturer specified in 
    Sec. 86.1702;
        (G) The on-board diagnostic system requirements specified in 
    Sec. 86.1717;
        (H) The light-duty vehicle refueling emissions standards and 
    provisions specified in Sec. 86.099-8(d), and the light-duty truck 
    refueling emissions standards and provisions specified in Sec. 86.001-
    9(d);
        (I) The cold temperature carbon monoxide standards and provisions 
    for light-duty vehicles specified in Sec. 86.099-8(k), and for light 
    light-duty trucks specified in Sec. 86.099-9(k);
        (J) The evaporative emissions standards and provisions for light-
    duty vehicles specified in Sec. 86.099-8(b), and the evaporative 
    emissions standards and provisions for light light-duty trucks 
    specified in Sec. 86.099-9(b);
        (K) The reactivity adjustment factors and procedures specified in 
    Sec. 86.1777(d);
        (L) The Supplemental Federal Test Procedure, standards and phase-in 
    schedules specified in Secs. 86.1708(e), 86.1709(e), 86.127(f) and (g), 
    86.129(e) and (f), 86.130(e), 86.131(f), 86.132(n) and (o), 86.158, 
    86.159, 86.160, 86.161, 86.162, 86.163, 86.164, and Appendix I to this 
    part, paragraphs (g) and (h).
        (ii) The standards and requirements listed in paragraphs 
    (d)(9)(i)(A) through (d)(9)(i)(F) of this section are the ``Core Stable 
    Standards''; the standards and requirements listed in paragraphs 
    (d)(9)(i)(G) through (d)(9)(i)(L) of this section are the ``Non-Core 
    Stable Standards.''
        (iii) The following types of revisions to the Stable Standards 
    listed in paragraph (d)(9)(i) of this section do not provide covered 
    manufacturers the right to opt out of the National LEV program:
        (A) Revisions to which covered manufacturers do not object;
        (B) Revisions to a Non-Core Stable Standard that do not increase 
    the overall stringency of the standard or requirement;
        (C) Revisions to a Non-Core Stable Standard that harmonize the 
    standard or requirement with the comparable California standard or 
    requirement for the same model year (even if the harmonization 
    increases the stringency of the standard or requirement), provided 
    that, if the relevant California factor is raised to 1.0 or higher, EPA 
    can only raise to 1.0 any of the reactivity adjustment factors 
    specified in 86.1777 applicable to gasoline meeting the specifications 
    of 86.1771(a)(1); and
        (D) Revisions to cold temperature carbon monoxide standards and 
    provisions for light-duty vehicles (as specified in Sec. 86.099-8(k)) 
    and for light light-duty trucks (as specified in Sec. 86.099-9(k)) that 
    are effective after model year 2000.
        (10) Promulgation by EPA of mandatory tailpipe standards and other 
    related requirements effective model year 2004 or later does not 
    provide an opportunity to opt out of the National LEV program.
        (e) Conditions allowing manufacturer opt-outs--state Section 177 
    Program that does not allow National LEV as a compliance alternative. A 
    covered manufacturer may opt out of National LEV if a covered state 
    takes final action such that it has in its regulations or state law a 
    state Section 177 Program and/or a ZEV Mandate (except in a state with 
    an Existing ZEV Mandate), that does not allow National LEV as a 
    compliance alternative for the duration of the state's commitment to 
    the National LEV program. The state's commitment to National LEV 
    extends until model year 2006. If, no later than December 15, 2000, EPA 
    has not adopted standards at least as stringent as the National LEV 
    standards provided in 40 CFR part 86, subpart R that apply to new motor 
    vehicles in model year 2004, 2005 or 2006, the state's commitment to 
    National LEV only extends until model year 2004. A manufacturer could 
    opt out based on this condition even if the state regulations or law 
    are contrary to an approved SIP revision committing the state to 
    National LEV pursuant to Sec. 86.1705(g). For purposes of this 
    paragraph (e), such a state shall be called the ``violating state.''
        (1) A covered manufacturer may opt out any time after the violating 
    state takes such final action, provided that the violating state has 
    not withdrawn or otherwise nullified the relevant final action prior to 
    EPA's receipt of the opt-out notification. An opt-out under this 
    paragraph (e) shall be effective no earlier than the model year named 
    for the calendar year following the calendar year in which EPA receives 
    the manufacturer's opt-out notification.
        (2) As of the model year named for the calendar year following the 
    calendar year of the violating state's final action, the violating 
    state shall no longer be included in the applicable trading region for 
    purposes of calculating covered manufacturers' compliance with the 
    fleet average NMOG standards under Sec. 86.1710, and Sec. 86.1711 shall 
    no longer apply to vehicles sold in the violating state. Beginning in 
    that model year and until the violating state's requirements become 
    effective pursuant
    
    [[Page 972]]
    
    to sections 110(l) and 177 of the Clean Air Act or until the date 
    specified in the following sentence, whichever is earlier, the National 
    LEV program allows covered manufacturers to certify and produce for 
    sale vehicles meeting the exhaust emission standards of Sec. 86.096-
    8(a)(1)(i) and subsequent model year provisions or Sec. 86.097-
    9(a)(1)(i) and subsequent model year provisions in the violating state. 
    If the violating state withdraws or otherwise nullifies the relevant 
    violating final action, vehicles sold in that state shall count towards 
    the covered manufacturers' fleet NMOG standards under Sec. 86.1710 and 
    be subject to Sec. 86.1711 as of the model year named for the second 
    calendar year following the calendar year in which the violating state 
    took the final action nullifying or withdrawing the final violating 
    action, or as of the model year named for the fourth calendar year 
    following the calendar year in which the violating state took the 
    violating final action, whichever is later. The two-year lead time 
    required by section 177 of the Clean Air Act for the state Section 177 
    Program or ZEV Mandate shall run from the date of the violating final 
    action. Notwithstanding an earlier effective date of a manufacturer's 
    opt-out under this paragraph (e), the manufacturer's opt-out is not 
    effective in the violating state until the two-year lead time for the 
    violating state's program has passed (which shall run from the date of 
    the violating final action). For model years for which vehicles sold in 
    the violating state do not count towards the National LEV NMOG average, 
    in calculating emissions reductions from new motor vehicles creditable 
    for state implementation plan requirements, the violating state's 
    emissions reductions shall be based on the emission standards of 
    Secs. 86.096--8(a)(1)(i), 86.097-9(a)(1)(i) and subsequent model year 
    provisions, and shall not be based on the National LEV standards, 
    provided that vehicles sold in the violating state are certified to 
    Tier 1 levels when sold in that state.
        (3) Upon the effective date of a manufacturer's opt-out under this 
    paragraph (e) in any covered state that is not a violating state under 
    this paragraph (e), that manufacturer shall be subject to all 
    requirements (except ZEV Mandates) that would apply to a manufacturer 
    that had not opted into the National LEV program, including all 
    applicable standards and other requirements promulgated under title II 
    of the Clean Air Act and any state standards and other requirements 
    (except ZEV Mandates) in effect pursuant to section 177 of the Clean 
    Air Act (42 U.S.C. 7507). For any state Section 177 Program that 
    allowed National LEV as a compliance alternative and was adopted by a 
    non-violating state at least two years before the effective date of a 
    manufacturer's opt-out, a manufacturer waives its right under section 
    177 of the Clean Air Act to two years of lead time to the extent that 
    the effective date of its opt-out provides for less than two years of 
    lead time and to the extent such a waiver is necessary. With respect to 
    ZEV Mandates, the manufacturer will not be deemed to have waived its 
    two-year lead time under section 177 of the Clean Air Act. A 
    manufacturer shall not be subject to any ZEV Mandates (except Existing 
    ZEV Mandates) in OTC States until the model year (as defined in part 
    85, subpart X) that commences two years after the date of EPA's receipt 
    of the manufacturer's opt-out notice.
        (4) If a covered manufacturer opts out under this paragraph (e), 
    any covered state that is not a violating state under paragraph (e), 
    (f), (g) or (h) of this section may opt out within 90 calendar days of 
    EPA's receipt of the manufacturer's opt-out notification. The state's 
    opt-out notification shall specify an effective date for the state's 
    opt-out no earlier than two calendar years after the date of EPA's 
    receipt of the state's opt-out notification and shall provide that the 
    opt-out is not effective for model years (as defined in part 85, 
    subpart X), that commence prior to this effective date.
        (5) In a non-violating state that opts out pursuant to paragraph 
    (e)(4) of this section, obligations under National LEV shall be 
    unaffected for covered manufacturers until the effective date of the 
    non-violating state's opt-out. Upon the effective date of the state's 
    opt-out, in that state covered manufacturers shall comply with any 
    state standards and other requirements in effect pursuant to section 
    177 of the Clean Air Act or, if such state standards are not in effect, 
    with all requirements that would apply to a manufacturer that had not 
    opted into the National LEV program, including all applicable standards 
    and other requirements promulgated under title II of the Clean Air Act 
    (42 U.S.C. 7521 et seq.).
        (6) In a non-violating state that has not opted out, obligations 
    under National LEV shall be unaffected for covered manufacturers.
        (f) Conditions allowing manufacturer opt-outs--failure to submit 
    SIP revision. A covered manufacturer may opt out of National LEV if a 
    covered state fails to submit a National LEV SIP revision on the date 
    specified in Sec. 86.1705(g). For purposes of this paragraph (f), such 
    a state shall be called the ``violating state.''
        (1) A covered manufacturer may opt out any time after the violating 
    state misses the deadline for its National LEV SIP revision, provided 
    that EPA has not received a National LEV SIP revision from the 
    violating state prior to EPA's receipt of the manufacturer's opt-out 
    notification. If a manufacturer opts out within 180 calendar days from 
    the deadline for the state to submit its National LEV SIP revision, the 
    opt-out must be conditioned on the state not submitting a National LEV 
    SIP revision within 180 calendar days from the deadline for such SIP 
    revision. If the state submits such a SIP revision within the 180-day 
    period, any manufacturer opt-outs under this paragraph (f) would be 
    invalidated and would not come into effect. An opt-out under this 
    paragraph (f) shall be effective no earlier than model year 2000 (or 
    model year 2001 if the violating state is the District of Columbia, New 
    Hampshire, Delaware, or Virginia) or the model year named for the 
    calendar year following the calendar year in which EPA receives the 
    opt-out notification, whichever is later.
        (2) For a manufacturer that opts out under this paragraph (f), as 
    of model year 2000 (or model year 2001 if the violating state is the 
    District of Columbia, New Hampshire, Delaware, or Virginia) or the 
    model year named for the calendar year following the calendar year in 
    which EPA receives the opt-out notification, whichever is later, the 
    violating state shall no longer be included in the applicable trading 
    region for purposes of calculating that manufacturer's compliance with 
    the fleet average NMOG standards under Sec. 86.1710 and the 
    manufacturer does not have to comply with Sec. 86.1711 for vehicles 
    sold in the violating state. Beginning in that model year and until the 
    manufacturer's opt-out becomes effective, the National LEV program 
    allows a manufacturer that has opted out under this paragraph (f) to 
    certify and produce for sale vehicles meeting the exhaust emission 
    standards of Sec. 86.096-8(a)(1)(i) and subsequent model year 
    provisions or Sec. 86.097-9(a)(1)(i) and subsequent model year 
    provisions in the violating state. For model years in which vehicles 
    sold in the violating state do not count towards the National LEV NMOG 
    average, in calculating emission reductions from new motor vehicles 
    creditable for state implementation plan requirements, the violating 
    state's emissions reductions shall be based on the emissions standards 
    of Secs. 86.096-8(a)(1)(i), 86.097-9(a)(1)(i), and subsequent model 
    year provisions, and shall not be based
    
    [[Page 973]]
    
    on the National LEV standards, provided that vehicles sold in the 
    violating state are certified to Tier 1 levels when sold in that state. 
    National LEV obligations in the violating state remain unchanged for 
    those manufacturers that do not opt out based on this condition.
        (3) Upon the effective date of a manufacturer's opt-out under this 
    paragraph (f), in any covered state that is not a violating state under 
    this paragraph (f), that manufacturer shall be subject to all 
    requirements (except ZEV Mandates) that would apply to a manufacturer 
    that had not opted into the National LEV program, including all 
    applicable standards and other requirements promulgated under title II 
    of the Clean Air Act and any state standards and other requirements 
    (except ZEV Mandates) in effect pursuant to section 177 of the Clean 
    Air Act (42 U.S.C. 7507). For any state Section 177 Program that 
    allowed National LEV as a compliance alternative and was adopted by a 
    non-violating state at least two years before the effective date of a 
    manufacturer's opt-out, a manufacturer waives its right under section 
    177 of the Clean Air Act to two years of lead time to the extent that 
    the effective date of its opt-out provides for less than two years of 
    lead time and to the extent such a waiver is necessary. With respect to 
    ZEV Mandates, the manufacturer will not be deemed to have waived its 
    two-year lead time under section 177 of the Clean Air Act. A 
    manufacturer shall not be subject to any ZEV Mandates (except Existing 
    ZEV Mandates) in OTC States until the model year (as defined in part 
    85, subpart X) that commences two years after the date of EPA's receipt 
    of the manufacturer's opt-out notice.
        (4) If a covered manufacturer opts out under this paragraph (f), 
    any covered state that is not a violating state under paragraph (e), 
    (f), (g) or (h) of this section may opt out within 90 calendar days of 
    EPA's receipt of the manufacturer's opt-out notification. The state's 
    opt-out notification shall specify an effective date for the state's 
    opt-out no earlier than two calendar years after the date of EPA's 
    receipt of the state's opt-out notification and shall provide that the 
    opt-out is not effective for model years (as defined in part 85, 
    subpart X), that commence prior to this effective date.
        (5) In a non-violating state that opts out pursuant to paragraph 
    (f)(4) of this section, obligations under National LEV shall be 
    unaffected for covered manufacturers until the effective date of the 
    non-violating state's opt-out. Upon the effective date of the state's 
    opt-out, in that state covered manufacturers shall comply with any 
    state standards and other requirements in effect pursuant to section 
    177 of the Clean Air Act or, if such state standards are not in effect, 
    with all requirements that would apply to a manufacturer that had not 
    opted into the National LEV program, including all applicable standards 
    and other requirements promulgated under title II of the Clean Air Act 
    (42 U.S.C. 7521 et seq.).
        (6) In a non-violating state that has not opted out, obligations 
    under National LEV shall be unaffected for covered manufacturers.
        (g) Conditions allowing manufacturer opt-outs--inadequate National 
    LEV SIP submission. A covered manufacturer may opt out of National LEV 
    if EPA disapproves a covered state's National LEV SIP submission or 
    finds that it fails to meet the requirements for a National LEV SIP 
    revision set forth in Sec. 86.1705(g) or if EPA has not taken final 
    action regarding such a SIP submission and more than one year has 
    passed since such SIP submission was submitted to EPA. For purposes of 
    this paragraph (g), such a state shall be called the ``violating 
    state.''
        (1) A covered manufacturer may opt out any time after EPA has 
    disapproved a state's National LEV SIP submission or found that it does 
    not meet the requirements of Sec. 86.1705(g), provided that EPA has not 
    subsequently approved a revised National LEV SIP revision from that 
    state and found that the SIP revision meets the requirements of 
    Sec. 86.1705(g). A covered manufacturer may also opt out any time after 
    one year EPA's receipt of a state's National LEV SIP submission, 
    provided that EPA has not approved the revision or has not found that 
    the SIP revision meets the requirements of Sec. 86.1705(g). An opt-out 
    under this condition shall be effective no earlier than the model year 
    named for the calendar year following the calendar year in which the 
    EPA receives the manufacturer's opt-out notification.
        (2) For a manufacturer that opts out under this paragraph (g), as 
    of the model year named for the calendar year following the calendar 
    year in which EPA receives the opt-out notification, the violating 
    state shall no longer be included in the applicable trading region for 
    purposes of calculating that manufacturer's compliance with the fleet 
    average NMOG standards under Sec. 86.1710 and the manufacturer does not 
    have to comply with Sec. 86.1711 for vehicles sold in the violating 
    state. Beginning in that model year and until the manufacturer's opt-
    out becomes effective, the National LEV program allows a manufacturer 
    that has opted out under this paragraph (g) to certify and produce for 
    sale vehicles meeting the exhaust emission standards of Sec. 86.096-
    8(a)(1)(i) and subsequent model year provisions or Sec. 86.097-
    9(a)(1)(i) and subsequent model year provisions in the violating state. 
    For model years in which vehicles sold in the violating state do not 
    count towards the National LEV NMOG average, in calculating emission 
    reductions from new motor vehicles creditable for state implementation 
    plan requirements, the violating state's emissions reductions shall be 
    based on the emissions standards of Secs. 86.096-8(a)(1)(i), 86.097-
    9(a)(1)(i), and subsequent model year provisions, and shall not be 
    based on the National LEV standards, provided that vehicles sold in the 
    violating state are certified to Tier 1 levels when sold in that state. 
    National LEV obligations in the violating state remain unchanged for 
    those manufacturers that do not opt out based on this condition.
        (3) Upon the effective date of a manufacturer's opt-out under this 
    paragraph (g), in any covered state that is not a violating state under 
    this paragraph (g), that manufacturer shall be subject to all 
    requirements (except ZEV Mandates) that would apply to a manufacturer 
    that had not opted into the National LEV program, including all 
    applicable standards and other requirements promulgated under title II 
    of the Clean Air Act and any state standards and other requirements 
    (except ZEV Mandates) in effect pursuant to section 177 of the Clean 
    Air Act (42 U.S.C. 7507). For any state Section 177 Program that 
    allowed National LEV as a compliance alternative and was adopted by a 
    non-violating state at least two years before the effective date of a 
    manufacturer's opt-out, a manufacturer waives its right under section 
    177 of the Clean Air Act to two years of lead time to the extent that 
    the effective date of its opt-out provides for less than two years of 
    lead time and to the extent such a waiver is necessary. With respect to 
    ZEV Mandates, the manufacturer will not be deemed to have waived its 
    two-year lead time under section 177 of the Clean Air Act. A 
    manufacturer shall not be subject to any ZEV Mandates (except Existing 
    ZEV Mandates) in OTC States until the model year (as defined in part 
    85, subpart X) that commences two years after the date of EPA's receipt 
    of the manufacturer's opt-out notice.
        (4) If a covered manufacturer opts out under this paragraph (g), 
    any covered state that is not a violating state under paragraph (e), 
    (f), (g) or (h) of this section may opt out within 90 calendar
    
    [[Page 974]]
    
    days of EPA's receipt of the manufacturer's opt-out notification. The 
    state's opt-out notification shall specify an effective date for the 
    state's opt-out that is no earlier than two calendar years after the 
    date of EPA's receipt of the state's opt-out notification and shall 
    provide that the opt-out is not effective for model years (as defined 
    in part 85, subpart X that commence prior to this effective date.
        (5) In a non-violating state that opts out pursuant to paragraph 
    (g)(4) of this section, obligations under National LEV shall be 
    unaffected for covered manufacturers until the effective date of the 
    non-violating state's opt-out. Upon the effective date of the state's 
    opt-out, in that state covered manufacturers shall comply with any 
    state standards and other requirements in effect pursuant to section 
    177 of the Clean Air Act or, if such state standards are not in effect, 
    with all requirements that would apply to a manufacturer that had not 
    opted into the National LEV program, including all applicable standards 
    and other requirements promulgated under title II of the Clean Air Act 
    (42 U.S.C. 7521 et seq.).
        (6) In a non-violating state that has not opted out, obligations 
    under National LEV shall be unaffected for covered manufacturers.
        (h) Conditions allowing manufacturer opt-outs--adoption of a ZEV 
    Mandate. A covered manufacturer to which a ZEV Mandate might apply may 
    opt out of National LEV if a covered state without an Existing ZEV 
    Mandate takes final action such that it has in its regulations or state 
    law a ZEV Mandate that allows National LEV as a compliance alternative 
    that would be effective during the state's commitment to National LEV. 
    For purposes of this paragraph (h), such a state shall be called the 
    ``violating state.''
        (1) A covered manufacturer may opt out any time after the violating 
    state takes the final action, provided that the violating state has not 
    withdrawn or otherwise nullified the relevant final action prior to 
    EPA's receipt of the opt-out notification. An opt-out under this opt-
    out condition shall be effective no earlier than the model year named 
    for the calendar year following the calendar year in which EPA receives 
    the manufacturer's opt-out notification.
        (2) For a manufacturer that opts out under this paragraph (h), as 
    of the model year named for the calendar year following the calendar 
    year in which EPA receives the opt-out notification, the violating 
    state shall no longer be included in the applicable trading region for 
    purposes of calculating that manufacturer's compliance with the fleet 
    average NMOG standards under Sec. 86.1710 and the manufacturer does not 
    have to comply with Sec. 86.1711 for vehicles sold in the violating 
    state. Beginning in that model year and until the manufacturer's opt-
    out becomes effective, the National LEV program allows a manufacturer 
    that has opted out under this paragraph (h) to certify and produce for 
    sale vehicles meeting the exhaust emission standards of Sec. 86.096-
    8(a)(1)(i) and subsequent model year provisions or Sec. 86.097-
    9(a)(1)(i) and subsequent model year provisions in the violating state. 
    For model years in which vehicles sold in the violating state do not 
    count towards the National LEV NMOG average, in calculating emission 
    reductions from new motor vehicles creditable for state implementation 
    plan requirements, the violating state's emissions reductions shall be 
    based on the emissions standards of Secs. 86.096-8(a)(1)(i), 86.097-
    9(a)(1)(i), and subsequent model year provisions, and shall not be 
    based on the National LEV standards, provided that vehicles sold in the 
    violating state are certified to Tier 1 levels when sold in that state. 
    National LEV obligations in the violating state remain unchanged for 
    those manufacturers that do not opt out based on this condition.
        (3) Upon the effective date of a manufacturer's opt-out under this 
    paragraph (h), in any covered state that is not a violating state under 
    this paragraph (h), that manufacturer shall be subject to all 
    requirements (except ZEV Mandates) that would apply to a manufacturer 
    that had not opted into the National LEV program, including all 
    applicable standards and other requirements promulgated under title II 
    of the Clean Air Act and any state standards and other requirements 
    (except ZEV Mandates) in effect pursuant to section 177 of the Clean 
    Air Act (42 U.S.C. 7507). For any state Section 177 Program that 
    allowed National LEV as a compliance alternative and was adopted by a 
    non-violating state at least two years before the effective date of a 
    manufacturer's opt-out, a manufacturer waives its right under section 
    177 of the Clean Air Act to two years of lead time to the extent that 
    the effective date of its opt-out provides for less than two years of 
    lead time and to the extent such a waiver is necessary. With respect to 
    ZEV Mandates, the manufacturer will not be deemed to have waived its 
    two-year lead time under section 177 of the Clean Air Act. A 
    manufacturer shall not be subject to any ZEV Mandates (except Existing 
    ZEV Mandates) in OTC States until the model year (as defined in part 
    85, subpart X) that commences two years after the date of EPA's receipt 
    of the manufacturer's opt-out notice.
        (4) If a covered manufacturer opts out under this paragraph (h), 
    any covered state that is not a violating state under paragraph (e), 
    (f), (g) or (h) of this section may opt out within 90 calendar days of 
    EPA's receipt of the manufacturer's opt-out notification. The state's 
    opt-out notification shall specify an effective date for the state's 
    opt-out that is no earlier than two calendar years after the date of 
    EPA's receipt of the state's opt-out notification and shall provide 
    that the opt-out is not effective for model years (as defined in part 
    85, subpart X) that commence prior to this effective date.
        (5) In a non-violating state that opts out pursuant to paragraph 
    (h)(4) of this section, obligations under National LEV shall be 
    unaffected for covered manufacturers until the effective date of the 
    non-violating state's opt-out. Upon the effective date of the state's 
    opt-out, in that state covered manufacturers shall comply with any 
    state standards and other requirements in effect pursuant to section 
    177 of the Clean Air Act or, if such state standards are not in effect, 
    with all requirements that would apply to a manufacturer that had not 
    opted into the National LEV program, including all applicable standards 
    and other requirements promulgated under title II of the Clean Air Act 
    (42 U.S.C. 7521 et seq.).
        (6) In a non-violating state that has not opted out, obligations 
    under National LEV shall be unaffected for covered manufacturers.
        (i) Conditions allowing manufacturer opt-outs--EPA failure to 
    consider in-use fuel issues. A covered manufacturer may opt out of 
    National LEV if EPA does not meet its obligations related to fuel 
    sulfur effects, as those obligations are set forth in paragraph (i)(7) 
    of this section.
        (1) A manufacturer may request in writing that EPA consider taking 
    a specific action with regard to a fuel sulfur effect described in 
    paragraph (i)(7) of this section. The request must identify the alleged 
    fuel sulfur related problem, demonstrate that the problem exists and is 
    caused by in-use fuel sulfur levels, ask EPA to consider taking a 
    specific action, and demonstrate the emissions impact of the requested 
    change. Within 60 calendar days of EPA's receipt of the manufacturer's 
    request, EPA must consider the manufacturer's request and respond to it 
    in writing, stating the Agency's decision and explaining the basis for 
    the decision. The date of EPA's response is the date the response is 
    signed.
    
    [[Page 975]]
    
        (2) If EPA fails to respond to a manufacturer's request within the 
    time provided, the covered manufacturer that submitted the request may 
    opt out within 180 calendar days of the deadline for the EPA response. 
    (If such a manufacturer opts out, other manufacturers that did not 
    submit requests may also opt out pursuant to paragraph (j) of this 
    section.) An opt-out notification under this paragraph (i) is not valid 
    if received by EPA after EPA responds to the request, even if EPA 
    responds after the expiration of the 60-day EPA deadline. An opt-out 
    under this paragraph (i) shall be effective no earlier than the model 
    year named for the calendar year following the calendar year in which 
    EPA receives the manufacturer's opt-out notification.
        (3) Upon the effective date of a manufacturer's opt-out under this 
    paragraph (i), the manufacturer shall be subject to all requirements 
    (except ZEV Mandates) that would apply to a manufacturer that had not 
    opted into the National LEV program, including all applicable standards 
    and other requirements promulgated under title II of the Clean Air Act 
    (42 U.S.C. 7521 et seq.) and any state standards and other requirements 
    (except ZEV Mandates) in effect pursuant to section 177 of the Clean 
    Air Act (42 U.S.C. 7507). For any state Section 177 Program that 
    allowed National LEV as a compliance alternative and was adopted at 
    least two years before the effective date of a manufacturer's opt-out, 
    a manufacturer waives its right under section 177 of the Clean Air Act 
    to two years of lead time to the extent that the effective date of its 
    opt-out provides for less than two years of lead time and to the extent 
    such a waiver is necessary. With respect to ZEV Mandates, the 
    manufacturer will not be deemed to have waived its two-year lead time 
    under section 177 of the Clean Air Act. A manufacturer shall not be 
    subject to any ZEV Mandates (except Existing ZEV Mandates) in OTC 
    States until the model year (as defined in part 85, subpart X) that 
    commences two years after the date of EPA's receipt of the 
    manufacturer's opt-out notice.
        (4) If a covered manufacturer opts out under this paragraph (i), 
    any covered state that is not a violating state under paragraph (e), 
    (f), (g) or (h) of this section may opt out within 90 calendar days of 
    EPA's receipt of the manufacturer's opt-out notification. The state's 
    opt-out notification shall specify an effective date for the state's 
    opt-out that is no earlier than two calendar years after the date of 
    EPA's receipt of the state's opt-out notification and shall provide 
    that the opt out is not effective for model years (as defined in part 
    85, subpart X), that commence prior to this effective date.
        (5) In a state that opts out pursuant to paragraph (i)(4) of this 
    section, obligations under National LEV shall be unaffected for covered 
    manufacturers until the effective date of the state's opt-out. Upon the 
    effective date of the state's opt-out, in that state covered 
    manufacturers shall comply with any state standards and other 
    requirements in effect pursuant to section 177 of the Clean Air Act or, 
    if such state standards are not in effect, with all requirements that 
    would apply to a manufacturer that had not opted into the National LEV 
    program, including all applicable standards and other requirements 
    promulgated under title II of the Clean Air Act (42 U.S.C. 7521 et 
    seq.).
        (6) In a state that has not opted out, obligations under National 
    LEV shall be unaffected for covered manufacturers.
        (7) Following are the actions that a manufacturer may request EPA 
    to consider under paragraph (i)(1) of this section:
        (i) During the certification process and upon a manufacturer's 
    written request, EPA will consider allowing the use of an on-board 
    diagnostic system (as required by Sec. 86.1717), that functions 
    properly on low sulfur gasoline, but indicates sulfur-induced passes 
    when exposed to high sulfur gasoline.
        (ii) Upon a manufacturer's written request, if vehicles exhibit 
    illuminations of the emission control diagnostic system malfunction 
    indicator light (as defined in Sec. 86.094-17(c)) due to high sulfur 
    gasoline, EPA will consider allowing modifications to such vehicles on 
    a case-by-case basis so as to eliminate the sulfur-induced 
    illumination.
        (iii) Upon a manufacturer's written request, prior to in-use 
    testing, that presents information to EPA regarding pre-conditioning 
    procedures designed solely to remove the effects of high sulfur from 
    currently available gasoline, EPA will consider allowing such 
    procedures on a case-by-case basis.
        (j) Conditions allowing manufacturer opt-outs--OTC State or 
    manufacturer opts out. A covered manufacturer may opt out of National 
    LEV if a covered state or another covered manufacturer opts out of the 
    National LEV program pursuant to this section.
        (1) If a covered manufacturer's opt-out under this paragraph (j) is 
    based on a covered state's or covered manufacturer's opt-out under 
    paragraph (e), (f), (g), (h), (i), (j) or (k) of this section, the 
    manufacturer may opt out within 90 calendar days of EPA's receipt of 
    the underlying state's or manufacturer's opt-out notification. If a 
    manufacturer's opt-out under this paragraph (j) is based on a 
    manufacturer's opt-out under paragraph (d) of this section, the 
    manufacturer may only opt out within 90 calendar days of the date of 
    either an EPA finding or a judicial ruling that the opt-out under 
    paragraph (d) of this section is valid. An opt-out under this paragraph 
    (j) shall be effective no earlier than the model year named for the 
    calendar year following the calendar year in which the EPA receives the 
    manufacturer's opt-out notification.
        (2) Upon the effective date of a manufacturer's opt-out under this 
    paragraph (j), in any covered state that manufacturer shall be subject 
    to all requirements (except ZEV Mandates) that would apply to a 
    manufacturer that had not opted into National LEV, including all 
    applicable standards and other requirements promulgated under title II 
    of the Clean Air Act and any state standards and other requirements 
    (except ZEV Mandates) in effect pursuant to section 177 of the Clean 
    Air Act (42 U.S.C. 7507). For any state Section 177 Program that 
    allowed National LEV as a compliance alternative and was adopted at 
    least two years before the effective date of a manufacturer's opt-out, 
    a manufacturer waives its right under section 177 of the Clean Air Act 
    to two years of lead time to the extent that the effective date of its 
    opt-out provides for less than two years of lead time and to the extent 
    such a waiver is necessary. With respect to ZEV Mandates, the 
    manufacturer will not be deemed to have waived its two-year lead time 
    under section 177 of the Clean Air Act. A manufacturer shall not be 
    subject to any ZEV Mandates (except Existing ZEV Mandates) in OTC 
    States until the model year (as defined in part 85, subpart X) that 
    commences two years after the date of EPA's receipt of the 
    manufacturer's opt-out notice.
        (3) If a covered manufacturer opts out under this paragraph (j), 
    any covered state that is not a violating state under paragraph (e), 
    (f), (g) or (h) of this section may opt out within 90 calendar days of 
    EPA's receipt of the manufacturer's opt-out notification. The state's 
    opt-out notification shall specify an effective date for the state's 
    opt-out no earlier than two calendar years after the date of EPA's 
    receipt of the state's opt-out notification and shall provide that the 
    opt-out is not effective for model years (as defined in part 85, 
    subpart X), that commence prior to this effective date.
        (4) In a state that opts out pursuant to paragraph (j)(3) of this 
    section, obligations under National LEV shall be unaffected for covered 
    manufacturers
    
    [[Page 976]]
    
    until the effective date of the state's opt-out. Upon the effective 
    date of the state's opt-out, in that state covered manufacturers shall 
    comply with any state standards and other requirements in effect 
    pursuant to section 177 of the Clean Air Act or, if such state 
    standards are not in effect, with all requirements that would apply to 
    a manufacturer that had not opted into the National LEV program, 
    including all applicable standards and other requirements promulgated 
    under title II of the Clean Air Act (42 U.S.C. 7521 et seq.).
        (5) In a state that has not opted out, obligations under National 
    LEV remain unaffected for covered manufacturers.
        (k) Conditions allowing OTC State opt-outs--EPA finding of 
    inequivalency. Any covered state may opt out of National LEV if EPA 
    determines that National LEV would not produce (or is not producing) 
    emissions reductions at least equivalent to the OTC State Section 177 
    Programs.
        (1) At any time during National LEV, a covered state may request in 
    writing that EPA reevaluate its initial equivalency determination (of 
    December 16, 1997) that National LEV would produce emissions reductions 
    at least equivalent to the OTC State Section 177 Programs that would be 
    operative in the absence of National LEV. Within 180 calendar days of 
    receipt of the state's request, EPA must take final agency action to 
    determine whether the determination that National LEV will produce at 
    least equivalent emission reductions to OTC State Section 177 Program 
    is still valid. These EPA determinations are not rules, but are 
    nationally applicable final agency actions subject to judicial review 
    pursuant to section 307(b) of the Clean Air Act (42 U.S.C. 7607(b)). In 
    reevaluating its equivalency determination, EPA shall use the same 
    Mobile emission factor model and the same inputs and assumptions 
    (including vehicle miles traveled, MOBILE5a model inputs, inspection 
    and maintenance programs, reformulated gasoline, and permanent 
    migration effects) as used in the initial determination, with the 
    following exceptions:
        (i) In modeling the emission reductions from National LEV, EPA 
    shall use any revised federal new motor vehicle standard or other 
    requirement in place of the standard or other requirement as it existed 
    when EPA made its initial determination; and, to the extent that the 
    modeling reflects EPA's implementation of federal new motor vehicle 
    standards or other requirements, EPA shall take any changes in such 
    implementation into account.
        (ii) In modeling the emissions reductions that would be achieved 
    through the OTC State Section 177 Programs that would apply in the 
    absence of National LEV, EPA shall take into account all Section 177 
    Programs adopted by OTC States (including programs that allow National 
    LEV as a compliance alternative) that had been adopted subsequent to 
    EPA's initial equivalency determination. In accounting for the 
    emissions effect of OTC State Section 177 Programs, EPA shall continue 
    to assume that all OTC State Section 177 Programs have the same 
    substantive requirements used in EPA's initial equivalency 
    determination and shall not model any effects of state regulation of 
    medium-duty vehicles (as defined in the California Code of Regulations, 
    Title 13, Division 3, Chapter 1, Article 1, Section 1900).
        (2) A covered state may opt out of National LEV within 90 calendar 
    days of a final EPA determination pursuant to paragraph (k)(1) of this 
    section that National LEV would not produce (or is not producing) 
    emissions reductions at least equivalent to OTC State Section 177 
    Programs. The state's opt-out notification shall specify an effective 
    date for the state's opt-out that is no earlier than two calendar years 
    after the date of EPA's receipt of the state's opt-out notification and 
    shall provide that the opt-out is not effective for model years (as 
    defined in part 85, subpart X), that commence prior to this effective 
    date.
        (3) If a covered state opts out based on this condition, a covered 
    manufacturer may opt out of National LEV pursuant to paragraph (j) of 
    this section.
        (4) In a state that opts out pursuant to paragraph (k)(1) of this 
    section, obligations under National LEV shall be unaffected for covered 
    manufacturers until the effective date of that state's opt-out. Upon 
    the effective date of the state's opt-out, in that state covered 
    manufacturers shall comply with any state standards and other 
    requirements in effect pursuant to section 177 of the Clean Air Act or, 
    if such state standards and other requirements are not in effect, with 
    all requirements that would apply to a manufacturer that had not opted 
    into the National LEV program, including all applicable standards and 
    other requirements promulgated under title II of the Clean Air Act (42 
    U.S.C. 7521 et seq.).
    
    
    Sec. 86.1708-97  [Redesignated Sec. 86.1708-99 and Amended]
    
        18. Section 86.1708-97 is redesignated as Sec. 86.1708-99 and 
    amended by revising the section heading, by removing Table R97-7 and 
    redesignating Tables R97-1 through R97-6 as Tables R99-1 through R99-6, 
    by revising the references ``R97-1'', ``R97-2'', ``R97-3'', ``R97-4'', 
    ``R97-5'', and ``R97-6'', to read ``R99-1'', ``R99-2'', ``R99-3'', 
    ``R99-4'', ``R99-5'', and ``R99-6'', respectively, wherever they appear 
    in the section, by revising paragraphs (b)(1)(i), (b)(1)(iii)(B), and 
    (c), and by adding paragraph (e) to read as follows:
    
    
    Sec. 86.1708-99  Exhaust emission standards for 1999 and later light-
    duty vehicles.
    
    * * * * *
        (b)(1) Standards. (i) Exhaust emissions from 1999 and later model 
    year light-duty vehicles classified as TLEVs, LEVs, and ULEVs shall not 
    exceed the standards in Tables R99-1 and R99-2 in rows designated with 
    the applicable vehicle emission category. These standards shall apply 
    equally to certification and in-use vehicles, except as provided in 
    paragraph (c) of this section. The tables follow:
    
       Table R99-1.--Intermediate Useful Life (50,000 mile) Standards (g/mi) for Light-Duty Vehicles Classified as  
                                                 TLEVs, LEVs, and ULEVs                                             
    ----------------------------------------------------------------------------------------------------------------
                      Vehicle emission category                       NMOG          CO          NOX          HCHO   
    ----------------------------------------------------------------------------------------------------------------
    TLEV........................................................        0.125          3.4          0.4        0.015
    LEV.........................................................        0.075          3.4          0.2        0.015
    ULEV........................................................        0.040          1.7          0.2        0.008
    ----------------------------------------------------------------------------------------------------------------
    
    
    [[Page 977]]
    
    
       Table R99-2.--Full Useful Life (100,000 mile) Standards (g/mi) for Light-Duty Vehicles Classified as TLEVs,  
                                                     LEVs, and ULEVs                                                
    ----------------------------------------------------------------------------------------------------------------
                                                                                                         PM (diesels
               Vehicle emission category                 NMOG          CO          NOX          HCHO        only)   
    ----------------------------------------------------------------------------------------------------------------
    TLEV...........................................        0.156          4.2          0.6        0.018         0.08
    LEV............................................        0.090          4.2          0.3        0.018         0.08
    ULEV...........................................        0.055          2.1          0.3        0.011         0.04
    ----------------------------------------------------------------------------------------------------------------
    
     * * * * *
        (iii) *  *  *
        (B) The applicable NMOG emission standards for flexible-fuel and 
    dual-fuel light-duty vehicles when certifying the vehicle for operation 
    on gasoline shall be the NMOG standards in Tables R99-3 and R99-4 in 
    the rows designated with the applicable vehicle emission category, as 
    follows:
    
     Table R99-3.--Intermediate Useful Life (50,000 mile) NMOG Standards (g/
      mi) for Flexible-Fuel and Dual-Fuel Light-Duty Vehicles Classified as 
                             TLEVs, LEVs, and ULEVs                         
    ------------------------------------------------------------------------
                      Vehicle emission category                      NMOG   
    ------------------------------------------------------------------------
    TLEV........................................................       0.25 
    LEV.........................................................       0.125
    ULEV........................................................       0.075
    ------------------------------------------------------------------------
    
    
     Table R99-4.--Full Useful Life (100,000 mile) NMOG Standards (g/mi) for
      Flexible-Fuel and Dual-Fuel Light-Duty Vehicles Classified as TLEVs,  
                                 LEVs, and ULEVs                            
    ------------------------------------------------------------------------
                      Vehicle emission category                      NMOG   
    ------------------------------------------------------------------------
    TLEV........................................................       0.31 
    LEV.........................................................       0.156
    ULEV........................................................       0.090
    ------------------------------------------------------------------------
    
    * * * * *
        (c) In-use emission standards. (1) 1999 model year light-duty 
    vehicles certified as LEVs and 1999 through 2002 model year light-duty 
    vehicles certified as ULEVs shall meet the applicable intermediate and 
    full useful life in-use standards in paragraph (c)(2) of this section, 
    according to the following provisions:
        (i) [Reserved]
        (ii) The applicable in-use emission standards for vehicle emission 
    categories and model years not shown in Tables R99-5 and R99-6 shall be 
    the intermediate and full useful life standards in paragraph (b) of 
    this section.
        (2) Light-duty vehicles, including flexible-fuel and dual-fuel 
    light-duty vehicles when operated on gasoline and on an available fuel 
    other than gasoline, shall meet all intermediate and full useful life 
    in-use standards for the applicable vehicle emission category and model 
    year in Tables R99-5 and R99-6, as follows:
    
          Table R99-5.--Intermediate Useful Life (50,000 mile) In-Use Standards (g/mi) for Light-Duty Vehicles      
    ----------------------------------------------------------------------------------------------------------------
         Vehicle emission category              Model year            NMOG          CO          NOX          HCHO   
    ----------------------------------------------------------------------------------------------------------------
    LEV................................  1999                           0.100          3.4          0.3        0.015
    ULEV...............................  1999-2000                      0.055          2.1          0.3        0.012
                                         2001-2002                      0.055          2.1          0.3        0.008
    ----------------------------------------------------------------------------------------------------------------
    
    
              Table R99-6.--Full Useful Life (100,000 mile) In-Use Standards (g/mi) for Light-Duty Vehicles         
    ----------------------------------------------------------------------------------------------------------------
         Vehicle emission category              Model year            NMOG          CO          NOX          HCHO   
    ----------------------------------------------------------------------------------------------------------------
    LEV................................  1999                           0.125          4.2          0.4        0.018
    ULEV...............................  1999-2002                      0.075          3.4          0.4        0.008
    ----------------------------------------------------------------------------------------------------------------
    
    * * * * *
        (e) SFTP Standards. Exhaust emissions from 2001 and later model 
    year light-duty vehicles shall meet the additional SFTP standards in 
    this paragraph (e) according to the implementation schedules in this 
    paragraph (e). The standards set forth in this paragraph (e) refer to 
    exhaust emissions emitted over the Supplemental Federal Test Procedure 
    (SFTP) as set forth in subpart B of this part and collected and 
    calculated in accordance with those procedures.
        (1) Tier 1 vehicles and TLEVs. The SFTP exhaust emission levels 
    from new 2001 and subsequent model year light-duty vehicles certified 
    to the exhaust emission standards in Sec. 86.099-8(a)(1)(i) and 
    subsequent model year provisions and light-duty vehicles certified as 
    TLEVs shall not exceed the standards in Table R99-7.1, according to the 
    implementation schedule in this paragraph (e)(1).
    
                  Table R99-7.1.--SFTP Exhaust Emission Standards (g/mi) for Tier 1 Vehicles and TLEVs              
    ----------------------------------------------------------------------------------------------------------------
                                                                                                 CO                 
                                                                   NMHC + NOX --------------------------------------
                 Useful life                     Fuel type         composite                              Composite 
                                                                                 A/C test    US06 test      option  
    ----------------------------------------------------------------------------------------------------------------
    Intermediate........................  Gasoline..............         0.65          3.0          9.0          3.4
    
    [[Page 978]]
    
                                                                                                                    
                                          Diesel................         1.48           NA          9.0          3.4
    Full................................  Gasoline..............         0.91          3.7         11.1          4.2
                                          Diesel................         2.07           NA         11.1          4.2
    ----------------------------------------------------------------------------------------------------------------
    
        (i) Phase-in requirements--2001 to 2003 model years. For the 
    purposes of this paragraph (e)(1)(i) only, each manufacturer's light-
    duty vehicle and light light-duty truck fleet shall be defined as the 
    total projected number of the following types of vehicles sold in 
    California: light-duty vehicles certified to the exhaust emission 
    standards in Sec. 86.099-8(a)(1)(i) and subsequent model year 
    provisions, and light light-duty trucks certified to the exhaust 
    emission standards in Sec. 86.099-9(a)(1)(i) and subsequent model year 
    provisions, and light-duty vehicles and light light-duty trucks 
    certified as TLEVs. As an option, a manufacturer may elect to have its 
    total light-duty vehicle and light light-duty truck fleet defined, for 
    the purposes of this paragraph (e)(1)(i) only, as the total projected 
    number of the manufacturer's light-duty vehicles and light light-duty 
    trucks, other than zero emission vehicles, certified and sold in 
    California.
        (A) Manufacturers of light-duty vehicles and light light-duty 
    trucks, except low volume manufacturers, shall certify a minimum 
    percentage of their light-duty vehicle and light light-duty truck fleet 
    according to the following phase-in schedule:
    
    ------------------------------------------------------------------------
                             Model year                           Percentage
    ------------------------------------------------------------------------
    2001.......................................................           25
    2002.......................................................           50
    2003.......................................................           85
    ------------------------------------------------------------------------
    
        (B) [Reserved]
        (ii) Phase-in requirements--2004 and later model years. For the 
    purposes of this paragraph (e)(1)(ii) only, each manufacturer's light-
    duty vehicle and light light-duty truck fleet shall be defined as the 
    total projected number of the following types of vehicles sold in the 
    United States: light-duty vehicles certified to the exhaust emission 
    standards in Sec. 86.099-8(a)(1)(i) and subsequent model year 
    provisions, and light light-duty trucks certified to the exhaust 
    emission standards in Sec. 86.099-9(a)(1)(i) and subsequent model year 
    provisions, and light-duty vehicles and light light-duty trucks 
    certified as TLEVs. As an option, a manufacturer may elect to have its 
    total light-duty vehicle and light light-duty truck fleet defined, for 
    the purposes of this paragraph (e)(1)(ii) only, as the total projected 
    number of the manufacturer's light-duty vehicles and light light-duty 
    trucks, other than zero emission vehicles, certified and sold in the 
    United States.
        (A) In 2004 and subsequent model years, manufacturers of light-duty 
    vehicles and light light-duty trucks, including low volume 
    manufacturers, shall certify 100 percent of their light-duty vehicle 
    and light light-duty truck fleet to the standards in this paragraph 
    (e)(l).
        (B) [Reserved]
        (iii) Phase-in requirements--vehicles sold outside California. 
    Light-duty vehicles and light light-duty trucks sold outside California 
    shall be certified to the applicable emission standards in this 
    paragraph (e) if a vehicle has been certifed to the emission standards 
    in this paragraph (e) for sale in California and is identical in the 
    following respects:
        (A) Vehicle manufacturer;
        (B) Vehicle make and model;
        (C) Cylinder block configuration (L-6, V-8, and so forth);
        (D) Displacement;
        (E) Combustion cycle;
        (F) Transmission class; and
        (G) Axle ratio.
        (2) LEVs and ULEVs. The SFTP standards in this paragraph (e)(2) 
    represent the maximum SFTP exhaust emissions at 4,000 miles +/-250 
    miles or at the mileage determined by the manufacturer for emission 
    data vehicles in accordance with Sec. 86.1726. The SFTP exhaust 
    emission levels from new 2001 and subsequent model year light-duty 
    vehicle LEVs and ULEVs shall not exceed the standards in the following 
    table, according to the implementation schedule in this paragraph 
    (e)(2)(i).
    
       Table R99-7.2.--SFTP Exhaust Emission Standards (g/mi) for LEVs and  
                                      ULEVs                                 
    ------------------------------------------------------------------------
                  US06 Test                            A/C Test             
    ------------------------------------------------------------------------
        NMHC + NOX             CO            NMHC + NOX             CO      
    ------------------------------------------------------------------------
    0.14.............           8.0               0.20               2.7    
    ------------------------------------------------------------------------
    
        (i) Phase-in requirements--2001 to 2003 model years. For the 
    purposes of this paragraph (e)(2)(i) only, each manufacturer's light-
    duty vehicle and light light-duty truck fleet shall be defined as the 
    total projected number of light-duty vehicles and light light-duty 
    trucks certified as LEVs and ULEVs sold in California.
        (A) Manufacturers of light-duty vehicles and light light-duty 
    trucks, except low volume manufacturers, shall certify to the standards 
    in this paragraph (e)(2) a minimum percentage of their light-duty 
    vehicle and light light-duty truck fleet according to the following 
    phase-in schedule:
    
    ------------------------------------------------------------------------
                             Model year                           Percentage
    ------------------------------------------------------------------------
    2001.......................................................           25
    2002.......................................................           50
    2003.......................................................           85
    ------------------------------------------------------------------------
    
        (B) Manufacturers may use an ``Alternative or Equivalent Phase-in 
    Schedule'' to comply with the phase-in requirements. An ``Alternative 
    Phase-in'' is one that achieves at least equivalent emission reductions 
    by the end of the last model year of the scheduled phase-in. Model-year 
    emission reductions shall be calculated by multiplying the percent of 
    vehicles (based on the manufacturer's projected California sales volume 
    of the applicable vehicle fleet) meeting the new requirements per model 
    year by the number of model years implemented prior to and including 
    the last model year of the scheduled phase-in. The ``cumulative total'' 
    is the summation of the model-year emission reductions (e.g., a four 
    model-year 25/50/85/100 percent phase-in schedule would be calculated 
    as: (25%* 4 years) + (50%* 3 years) + (85%* 2 years) + (100%* 1 year)
    
    [[Page 979]]
    
    = 520). Any alternative phase-in that results in an equal or larger 
    cumulative total than the required cumulative total by the end of the 
    last model year of the scheduled phase-in shall be considered 
    acceptable by the Administrator under the following conditions: All 
    vehicles subject to the phase-in shall comply with the respective 
    requirements in the last model year of the required phase-in schedule; 
    and if a manufacturer uses the optional phase-in percentage 
    determination in paragraph (e)(1)(i) of this section, the cumulative 
    total of model-year emission reductions as determined only for light-
    duty vehicles and light light-duty trucks certified to this paragraph 
    (e)(2) must also be equal to or larger than the required cumulative 
    total by end of the 2004 model year. Manufacturers shall be allowed to 
    include vehicles introduced before the first model year of the 
    scheduled phase-in (e.g., in the previous example, 10 percent 
    introduced one year before the scheduled phase-in begins would be 
    calculated as: (10%* 5 years) and added to the cumulative total).
        (ii) Phase-in requirements--2004 and later model years. For the 
    purposes of this paragraph (e)(2)(ii) only, each manufacturer's light-
    duty vehicle and light light-duty truck fleet shall be defined as the 
    total projected number of light-duty vehicles and light light-duty 
    trucks certified as LEVs and ULEVs sold in the United States.
        (A) In 2004 and subsequent model years, manufacturers of light-duty 
    vehicles and light light-duty trucks, including low volume 
    manufacturers, shall certify 100 percent of their light-duty vehicle 
    and light light-duty truck fleet to the standards in this paragraph 
    (e)(2).
        (iii) Phase-in requirements--vehicles sold outside California. 
    Light-duty vehicles and light light-duty trucks sold outside California 
    shall be certified to the applicable emission standards in this 
    paragraph (e) if a vehicle has been certifed to the emission standards 
    in this paragraph (e) for sale in California and is identical in the 
    following respects:
        (A) Vehicle manufacturer;
        (B) Vehicle make and model;
        (C) Cylinder block configuration (L-6, V-8, and so forth);
        (D) Displacement;
        (E) Combustion cycle;
        (F) Transmission class; and
        (G) Axle ratio.
        (3) A/C-on specific calibrations. A/C-on specific calibrations 
    (e.g. air to fuel ratio, spark timing, and exhaust gas recirculation), 
    may be used which differ from A/C-off calibrations for given engine 
    operating conditions (e.g., engine speed, manifold pressure, coolant 
    temperature, air charge temperature, and any other parameters). Such 
    calibrations must not unnecessarily reduce the NMHC+NOX 
    emission control effectiveness during A/C-on operation when the vehicle 
    is operated under conditions which may reasonably be expected to be 
    encountered during normal operation and use. If reductions in control 
    system NMHC+NOX effectiveness do occur as a result of such 
    calibrations, the manufacturer shall, in the Application for 
    Certification, specify the circumstances under which such reductions do 
    occur, and the reason for the use of such calibrations resulting in 
    such reductions in control system effectiveness. A/C-on specific 
    ``open-loop'' or ``commanded enrichment'' air-fuel enrichment 
    strategies (as defined below), which differ from A/C-off ``open-loop'' 
    or ``commanded enrichment'' air-fuel enrichment strategies, may not be 
    used, with the following exceptions: Cold-start and warm-up conditions, 
    or, subject to Administrator approval, conditions requiring the 
    protection of the vehicle, occupants, engine, or emission control 
    hardware. Other than these exceptions, such strategies which are 
    invoked based on manifold pressure, engine speed, throttle position, or 
    other engine parameters shall use the same engine parameter criteria 
    for the invoking of this air-fuel enrichment strategy and the same 
    degree of enrichment regardless of whether the A/C is on or off. 
    ``Open-loop'' or ``commanded'' air-fuel enrichment strategy is defined 
    as enrichment of the air to fuel ratio beyond stoichiometry for the 
    purposes of increasing engine power output and the protection of engine 
    or emissions control hardware. However, ``closed-loop biasing,'' 
    defined as small changes in the air-fuel ratio for the purposes of 
    optimizing vehicle emissions or driveability, shall not be considered 
    an ``open-loop'' or ``commanded'' air-fuel enrichment strategy. In 
    addition, ``transient'' air-fuel enrichment strategy (or ``tip-in'' and 
    ``tip-out'' enrichment), defined as the temporary use of an air-fuel 
    ratio rich of stoichiometry at the beginning or duration of rapid 
    throttle motion, shall not be considered an ``open-loop'' or 
    ``commanded'' air-fuel enrichment strategy.
        (4) ``Lean-on-cruise'' calibration strategies. (i) In the 
    Application for Certification, the manufacturer shall state whether any 
    ``lean-on-cruise'' strategies are incorporated into the vehicle design. 
    A ``lean-on-cruise'' air-fuel calibration strategy is defined as the 
    use of an air-fuel ratio significantly greater than stoichiometry, 
    during non-deceleration conditions at speeds above 40 mph. ``Lean-on-
    cruise'' air-fuel calibration strategies shall not be employed during 
    vehicle operation in normal driving conditions, including A/C usage, 
    unless at least one of the following conditions is met:
        (A) Such strategies are substantially employed during the FTP or 
    SFTP;
        (B) Such strategies are demonstrated not to significantly reduce 
    vehicle NMHC+NOX emission control effectiveness over the 
    operating conditions in which they are employed;
        (C) Such strategies are demonstrated to be necessary to protect the 
    vehicle occupants, engine, or emission control hardware.
        (ii) If the manufacturer proposes to use a ``lean-on-cruise'' 
    calibration strategy, the manufacturer shall specify the circumstances 
    under which such a calibration would be used, and the reason or reasons 
    for the proposed use of such a calibration.
        (iii) The provisions of this paragraph (e)(4) shall not apply to 
    vehicles powered by ``lean-burn'' engines or diesel-cycle engines. A 
    ``lean-burn'' engine is defined as an Otto-cycle engine designed to run 
    at an air-fuel ratio significantly greater than stoichiometry during 
    the large majority of its operation.
        (5) Applicability to alternative fuel vehicles. These SFTP 
    standards do not apply to vehicles certified on fuels other than 
    gasoline and diesel fuel, but the standards do apply to the gasoline 
    and diesel fuel operation of flexible-fuel vehicles and dual-fuel 
    vehicles.
        (6) Single-roll electric dynamometer requirement. For all vehicles 
    certified to the SFTP standards, a single-roll electric dynamometer or 
    a dynamometer which produces equivalent results, as set forth in 
    Sec. 86.108, must be used for all types of emission testing to 
    determine compliance with the associated emission standards.
    
    
    Sec. 86.1709  [Redesignated as Sec. 86.1709-99 and Amended]
    
        19. Section 86.1709-97 is redesignated as Sec. 86.1709-99 and 
    amended by revising the section heading, by removing Table R97-14 and 
    redesignating Tables R97-8 through R97-13 as Tables R99-8 through R99-
    13, by revising the references ``R97-8'', ``R97-9'', ``R97-10'', ``R97-
    11'', ``R97-12'', and ``R97-13'' to read ``R99-8'', ``R99-9'', ``R99-
    10'', ``R99-11'', ``R99-12'', and ``R99-13'', respectively, wherever 
    they appear in the section, by revising paragraphs (b)(1)(i), 
    (b)(1)(iii) (B), and (c), and by adding paragraph (e) to read as 
    follows:
    
    [[Page 980]]
    
    Sec. 86.1709-99  Exhaust emission standards for 1999 and later light 
    light-duty trucks.
    
    * * * * *
        (b)(1) Standards. (i) Exhaust emissions from 1999 and later model 
    year light light-duty trucks classified as TLEVs, LEVs, and ULEVs shall 
    not exceed the standards in Tables R99-8 and R99-9 in rows designated 
    with the applicable vehicle emission category and loaded vehicle 
    weight. These standards shall apply equally to certification and in-use 
    vehicles, except as provided in paragraph (c) of this section. The 
    tables follow:
    
     Table R99-8.--Intermediate Useful Life (50,000 mile) Standards (g/mi) for Light Light-Duty Trucks Classified as
                                                 TLEVs, LEVs, and ULEVs                                             
    ----------------------------------------------------------------------------------------------------------------
                                             Vehicle emission                                                       
            Loaded vehicle weight                category             NMOG          CO          NOX          HCHO   
    ----------------------------------------------------------------------------------------------------------------
    3751................................  TLEV..................        0.125          3.4          0.4        0.015
                                          LEV...................        0.075          3.4          0.2        0.015
                                          ULEV..................        0.040          1.7          0.2        0.008
    3751-5750...........................  TLEV..................        0.160          4.4          0.7        0.018
                                          LEV...................        0.100          4.4          0.4        0.018
                                          ULEV..................        0.050          2.2          0.4        0.009
    ----------------------------------------------------------------------------------------------------------------
    
    
     Table R99-9.--Full Useful Life (100,000 mile) Standards (g/mi) for Light Light-Duty Trucks Classified as TLEVs,
                                                     LEVs, and ULEVs                                                
    ----------------------------------------------------------------------------------------------------------------
                                                                                                               PM   
           Loaded vehicle weight           Vehicle emission       NMOG        CO        NOX        HCHO     (diesels
                                               category                                                      only)  
    ----------------------------------------------------------------------------------------------------------------
    0-3750............................  TLEV.................      0.156        4.2        0.6      0.018       0.08
                                        LEV..................      0.090        4.2        0.3      0.018       0.08
                                        ULEV.................      0.055        2.1        0.3      0.011       0.04
    3751-5750.........................  TLEV.................      0.200        5.5        0.9      0.023       0.10
                                        LEV..................      0.130        5.5        0.5      0.023       0.10
                                        ULEV.................      0.070        2.8        0.5      0.013       0.05
    ----------------------------------------------------------------------------------------------------------------
    
    * * * * *
        (iii) * * *
        (B) The applicable NMOG emission standards for flexible-fuel and 
    dual-fuel light light-duty trucks when certifying the vehicle for 
    operation on gasoline shall be the NMOG standards in Tables R99-10 and 
    R99-11 in the rows designated with the applicable vehicle emission 
    category and loaded vehicle weight, as follows:
    
    Table R99-10.--Intermediate Useful Life (50,000 mile) NMOG Standards (g/
     mi) for Flexible-Fuel and Dual-Fuel Light Light-Duty Trucks Classified 
                            as TLEVs, LEVs, and ULEVs                       
    ------------------------------------------------------------------------
      Loaded                                                                
      vehicle                 Vehicle emission category                NMOG 
      weight                                                                
    ------------------------------------------------------------------------
    0-3750....  TLEV................................................   0.25 
                LEV.................................................   0.125
                ULEV................................................   0.075
    3751-5750.  TLEV................................................   0.32 
                LEV.................................................   0.160
                ULEV................................................   0.100
    ------------------------------------------------------------------------
    
    
    Table R99-11.--Full Useful Life (100,000 mile) NMOG Standards (g/mi) for
    Flexible-Fuel and Dual-Fuel Light Light-Duty Trucks Classified as TLEVs,
                                 LEVs, and ULEVs                            
    ------------------------------------------------------------------------
      Loaded                                                                
      vehicle                 Vehicle emission category                NMOG 
      weight                                                                
    ------------------------------------------------------------------------
    0-3750....  TLEV................................................   0.31 
                LEV.................................................   0.156
                ULEV................................................   0.090
    3751-5750.  TLEV................................................   0.40 
                LEV.................................................   0.200
                ULEV................................................   0.130
    ------------------------------------------------------------------------
    
    * * * * *
        (c) In-use emission standards. (1) 1999 model year light light-duty 
    trucks certified as LEVs and 1999 through 2001 model year light light-
    duty trucks certified as ULEVs shall meet the applicable intermediate 
    and full useful life in-use standards in paragraph (c)(2) of this 
    section, according to the following provisions:
        (i) [Reserved]
        (ii) The applicable in-use emission standards for vehicle emission 
    categories and model years not shown in Tables R99-12 and R99-13 shall 
    be the intermediate and full useful life standards in paragraph (b) of 
    this section.
        (2) Light light-duty trucks, including flexible-fuel and dual-fuel 
    light light-duty trucks when operated on gasoline and on an available 
    fuel other than gasoline, shall meet all intermediate and full useful 
    life in-use standards for the applicable vehicle emission category, 
    loaded vehicle weight, and model year in Tables R99-12 and R99-13, as 
    follows:
    
        Table R99-12.--Intermediate Useful Life (50,000 mile) In-Use Standards (g/mi) for Light Light-Duty Trucks   
    ----------------------------------------------------------------------------------------------------------------
      Loaded                                                                                                        
      vehicle           Vehicle emission category         Model year     NMOG         CO          NOX        HCH0   
      weight                                                                                                        
    ----------------------------------------------------------------------------------------------------------------
    0-3750....  LEV.....................................        1999       0.100         3.4         0.3       0.015
                ULEV....................................   1999-2002       0.055         2.1         0.3       0.008
    3751-5750.  LEV.....................................        1999       0.130         4.4         0.5       0.018
    
    [[Page 981]]
    
                                                                                                                    
                ULEV....................................   1999-2002       0.070         2.8         0.5       0.009
    ----------------------------------------------------------------------------------------------------------------
    
    
           Table R99-13.--Full Useful Life (100,000 mile) In-Use Standards (g/mi) for Light Light-Duty Trucks       
    ----------------------------------------------------------------------------------------------------------------
      Loaded                                                                                                        
      vehicle           Vehicle emission category         Model year     NMOG         CO          NOX        HCHO   
      weight                                                                                                        
    ----------------------------------------------------------------------------------------------------------------
    0-3750....  LEV.....................................        1999       0.125         4.2         0.4       0.018
                ULEV....................................   1999-2002       0.075         3.4         0.4       0.011
    3751-5750.  LEV.....................................        1999       0.160         5.5         0.7       0.023
                ULEV....................................   1999-2002       0.100         4.4         0.7       0.013
    ----------------------------------------------------------------------------------------------------------------
    
    * * * * *
        (e) SFTP Standards. Exhaust emissions from 2001 and later model 
    year light light-duty trucks shall meet the additional SFTP standards 
    in this paragraph (e) according to the implementation schedules in this 
    paragraph (e). The standards set forth in this paragraph (e) refer to 
    exhaust emissions emitted over the Supplemental Federal Test Procedure 
    (SFTP) as set forth in subpart B of this part and collected and 
    calculated in accordance with those procedures.
        (1) Tier 1 vehicles and TLEVs. The SFTP exhaust emission levels 
    from new 2001 and subsequent model year light light-duty trucks 
    certified to the exhaust emission standards in Sec. 86.099-9(a)(1)(i) 
    and subsequent model year provisions and light light-duty trucks 
    certified as TLEVs shall not exceed the standards in Table R99-14.1, 
    according to the implementation schedule in this paragraph (e)(1).
    
                  Table R99-14.1.--SFTP Exhaust Emission Standards (g/mi) for Tier 1 Vehicles and TLEVs             
    ----------------------------------------------------------------------------------------------------------------
                                                                                                 CO                 
                                                                   NMHC + NOX --------------------------------------
             Useful life               Fuel type      LVW (lbs)    composite                              Composite 
                                                                                 A/C test    US06 test      option  
    ----------------------------------------------------------------------------------------------------------------
    Intermediate.................  Gasoline........       0-3750         0.65          3.0          9.0          3.4
                                     ..............    3751-5750         1.02          3.9         11.6          4.4
                                   Diesel..........       0-3750         1.48           NA          9.0          3.4
                                     ..............    3751-5750           NA           NA           NA           NA
    Full.........................  Gasoline........       0-3750         0.91          3.7         11.1          4.2
                                     ..............    3751-5750         1.37          4.9         14.6          5.5
                                   Diesel..........       0-3750         2.07           NA         11.1          4.2
                                     ..............    3751-5750           NA           NA           NA           NA
    ----------------------------------------------------------------------------------------------------------------
    
        (i) Phase-in requirements--2001 to 2003 model years. For the 
    purposes of paragraph (e)(1)(i) of this section only, each 
    manufacturer's light-duty vehicle and light light-duty truck fleet 
    shall be defined as the total projected number of the following types 
    of vehicles sold in Calfornia: light-duty vehicles certified to the 
    exhaust emission standards in Sec. 86.099-8(a)(1)(i) and subsequent 
    model year provisions, and light light-duty trucks certified to the 
    exhaust emission standards in Sec. 86.099-9(a)(1)(i) and subsequent 
    model year provisions, and light-duty vehicles and light light-duty 
    trucks certified as TLEVs. As an option, a manufacturer may elect to 
    have its total light-duty vehicle and light light-duty truck fleet 
    defined, for the purposes of this paragraph (e)(1)(i) only, as the 
    total projected number of the manufacturer's light-duty vehicles and 
    light light-duty trucks, other than zero emission vehicles, certified 
    and sold in California.
        (A) Manufacturers of light-duty vehicles and light light-duty 
    trucks, except low volume manufacturers, shall certify a minimum 
    percentage of their light-duty vehicle and light light-duty truck fleet 
    according to the following phase-in schedule:
    
    ------------------------------------------------------------------------
                           Model year                           Percentage  
    ------------------------------------------------------------------------
    2001....................................................              25
    2002....................................................              50
    2003....................................................              85
    ------------------------------------------------------------------------
    
        (B) [Reserved]
        (ii) Phase-in requirements--2004 and later model years. For the 
    purposes of paragraph (e)(1)(ii) of this section only, each 
    manufacturer's light-duty vehicle and light light-duty truck fleet 
    shall be defined as the total projected number of the following types 
    of vehicles sold in the United States: light-duty vehicles certified to 
    the exhaust emission standards in Sec. 86.099-8(a)(1)(i) and subsequent 
    model year provisions, light light-duty trucks certified to the exhaust 
    emission standards in Sec. 86.099-9(a)(1)(i) and subsequent model year 
    provisions, and light-duty vehicles and light light-duty trucks 
    certified as TLEVs. As an option, a manufacturer may elect to have its 
    total light-duty vehicle and light light-duty truck fleet defined, for 
    the purposes of this paragraph (e)(1)(ii) only, as the total projected 
    number of the manufacturer's light-duty vehicles and light light-duty 
    trucks, other than zero emission vehicles, certified and sold in the 
    United States.
        (A) In 2004 and subsequent model years, manufacturers of light-duty 
    vehicles and light light-duty trucks, including low volume 
    manufacturers, shall certify 100 percent of their light-duty vehicle 
    and light light-duty truck
    
    [[Page 982]]
    
    fleet to the standards in this paragraph (e)(1).
        (B) [Reserved]
        (iii) Phase-in requirements--vehicles sold outside California. 
    Light-duty vehicles and light light-duty trucks sold outside California 
    shall be certified to the applicable emission standards in this 
    paragraph (e) if a vehicle has been certifed to the emission standards 
    in this paragraph (e) for sale in California and is identical in the 
    following respects:
        (A) Vehicle manufacturer;
        (B) Vehicle make and model;
        (C) Cylinder block configuration (L-6, V-8, and so forth);
        (D) Displacement;
        (E) Combustion cycle;
        (F) Transmission class; and
        (G) Axle ratio.
        (2) LEVs and ULEVs. The SFTP standards in this paragraph (e)(2) 
    represent the maximum SFTP exhaust emissions at 4,000 miles +/-250 
    miles or at the mileage determined by the manufacturer for emission 
    data vehicles in accordance with Sec. 86.1726. The SFTP exhaust 
    emission levels from new 2001 and subsequent model year light light-
    duty truck LEVs and ULEVs shall not exceed the standards in the 
    following table, according to the implementation schedule in this 
    paragraph (e)(2).
    
       Table R99-14.2--SFTP Exhaust Emission Standards (g/mi) for LEVs and  
                                      ULEVs                                 
    ------------------------------------------------------------------------
                     US06 test                            A/C test          
    ------------------------------------------------------------------------
                 NMHC + NOX                CO         NMHC + NOX         CO 
    ------------------------------------------------------------------------
    0.25...............................   10.5  0.27.................    3.5
    ------------------------------------------------------------------------
    
        (i) Phase-in requirements--2001 to 2003 model years. For the 
    purposes of this paragraph (e)(2)(i) only, each manufacturer's light-
    duty vehicle and light light-duty truck fleet shall be defined as the 
    total projected number of light-duty vehicles and light light-duty 
    trucks certified as LEVs and ULEVs sold in California.
        (A) Manufacturers of light-duty vehicles and light light-duty 
    trucks, except low volume manufacturers, shall certify to the standards 
    in this paragraph (e)(2) a minimum percentage of their light-duty 
    vehicle and light light-duty truck fleet according to the following 
    phase-in schedule:
    
    ------------------------------------------------------------------------
                             Model year                           Percentage
    ------------------------------------------------------------------------
    2001.......................................................           25
    2002.......................................................           50
    2003.......................................................           85
    ------------------------------------------------------------------------
    
        (B) Manufacturers may use an ``Alternative or Equivalent Phase-in 
    Schedule'' to comply with the phase-in requirements. An ``Alternative 
    Phase-in'' is one that achieves at least equivalent emission reductions 
    by the end of the last model year of the scheduled phase-in. Model-year 
    emission reductions shall be calculated by multiplying the percent of 
    vehicles (based on the manufacturer's projected California sales volume 
    of the applicable vehicle fleet) meeting the new requirements per model 
    year by the number of model years implemented prior to and including 
    the last model year of the scheduled phase-in. The ``cumulative total'' 
    is the summation of the model-year emission reductions (e.g., a four 
    model-year 25/50/85/100 percent phase-in schedule would be calculated 
    as: (25%*4 years)+(50%*3 years)+(85%*2 years)+(100%*1 year) = 520). Any 
    alternative phase-in that results in an equal or larger cumulative 
    total than the required cumulative total by the end of the last model 
    year of the scheduled phase-in shall be considered acceptable by the 
    Administrator under the following conditions: All vehicles subject to 
    the phase-in shall comply with the respective requirements in the last 
    model year of the required phase-in schedule; and if a manufacturer 
    uses the optional phase-in percentage determination in paragraph 
    (e)(1)(i) of this section, the cumulative total of model-year emission 
    reductions as determined only for light-duty vehicles and light light-
    duty trucks certified to this paragraph (e)(2) must also be equal to or 
    larger than the required cumulative total by the end of the 2004 model 
    year. Manufacturers shall be allowed to include vehicles introduced 
    before the first model year of the scheduled phase-in (e.g., in the 
    previous example, 10 percent introduced one year before the scheduled 
    phase-in begins would be calculated as: (10%*5 years) and added to the 
    cumulative total).
        (ii) Phase-in requirements--2004 and later model years. For the 
    purposes of this paragraph (e)(2)(ii) only, each manufacturer's light-
    duty vehicle and light light-duty truck fleet shall be defined as the 
    total projected number of light-duty vehicles and light light-duty 
    trucks certified as LEVs and ULEVs sold in the United States.
        (A) In 2004 and subsequent model years, manufacturers of light-duty 
    vehicles and light light-duty trucks, including low volume 
    manufacturers, shall certify 100 percent of their light-duty vehicle 
    and light light-duty truck fleet to the standards in this paragraph 
    (e)(2).
        (B) [Reserved]
        (iii) Phase-in requirements--vehicles sold outside California. 
    Light-duty vehicles and light light-duty trucks sold outside California 
    shall be certified to the applicable emission standards in this 
    paragraph (e) if a vehicle has been certifed to the emission standards 
    in this paragraph (e) for sale in California and is identical in the 
    following respects:
        (A) Vehicle manufacturer;
        (B) Vehicle make and model;
        (C) Cylinder block configuration (L-6, V-8, and so forth);
        (D) Displacement;
        (E) Combustion cycle;
        (F) Transmission class; and
        (G) Axle ratio.
        (3) A/C-on specific calibrations. A/C-on specific calibrations 
    (e.g., air to fuel ratio, spark timing, and exhaust gas recirculation), 
    may be used which differ from A/C-off calibrations for given engine 
    operating conditions (e.g., engine speed, manifold pressure, coolant 
    temperature, air charge temperature, and any other parameters). Such 
    calibrations must not unnecessarily reduce the NMHC+NOX 
    emission control effectiveness during A/C-on operation when the vehicle 
    is operated under conditions which may reasonably be expected to be 
    encountered during normal operation and use. If reductions in control 
    system NMHC+NOX effectiveness do occur as a result of such 
    calibrations, the manufacturer shall, in the Application for 
    Certification, specify the circumstances under which such reductions do 
    occur, and the reason for the use of such calibrations resulting in 
    such reductions in control system effectiveness. A/C-on specific 
    ``open-loop'' or ``commanded enrichment'' air-fuel enrichment 
    strategies (as defined below), which differ from A/C-off ``open-loop'' 
    or ``commanded enrichment'' air-fuel enrichment strategies, may not be 
    used, with the following exceptions: Cold-start and warm-up conditions, 
    or, subject to Administrator approval, conditions requiring the 
    protection of the vehicle, occupants, engine, or emission control 
    hardware. Other than these exceptions, such strategies which are 
    invoked based on manifold pressure, engine speed, throttle position, or 
    other engine parameters shall use the same engine parameter criteria 
    for the invoking of this air-fuel enrichment strategy and the same 
    degree of enrichment regardless of whether the A/C is on or off. 
    ``Open-loop'' or ``commanded'' air-fuel enrichment strategy is defined 
    as enrichment of the air to fuel ratio beyond stoichiometry for the 
    purposes of increasing engine power output and the protection of engine 
    or emissions
    
    [[Page 983]]
    
    control hardware. However, ``closed-loop biasing,'' defined as small 
    changes in the air-fuel ratio for the purposes of optimizing vehicle 
    emissions or driveability, shall not be considered an ``open-loop'' or 
    ``commanded'' air-fuel enrichment strategy. In addition, ``transient'' 
    air-fuel enrichment strategy (or ``tip-in'' and ``tip-out'' 
    enrichment), defined as the temporary use of an air-fuel ratio rich of 
    stoichiometry at the beginning or duration of rapid throttle motion, 
    shall not be considered an ``open-loop'' or ``commanded'' air-fuel 
    enrichment strategy.
        (4) ``Lean-on-cruise'' calibration strategies. (i) In the 
    Application for Certification, the manufacturer shall state whether any 
    ``lean-on-cruise'' strategies are incorporated into the vehicle design. 
    A ``lean-on-cruise'' air-fuel calibration strategy is defined as the 
    use of an air-fuel ratio significantly greater than stoichiometry, 
    during non-deceleration conditions at speeds above 40 mph. ``Lean-on-
    cruise'' air-fuel calibration strategies shall not be employed during 
    vehicle operation in normal driving conditions, including A/C usage, 
    unless at least one of the following conditions is met:
        (A) Such strategies are substantially employed during the FTP or 
    SFTP;
        (B) Such strategies are demonstrated not to significantly reduce 
    vehicle NMHC+NOx emission control effectiveness over the 
    operating conditions in which they are employed;
        (C) Such strategies are demonstrated to be necessary to protect the 
    vehicle occupants, engine, or emission control hardware.
        (ii) If the manufacturer proposes to use a ``lean-on-cruise'' 
    calibration strategy, the manufacturer shall specify the circumstances 
    under which such a calibration would be used, and the reason or reasons 
    for the proposed use of such a calibration.
        (iii) The provisions of this paragraph (e)(4) shall not apply to 
    vehicles powered by ``lean-burn'' engines or diesel-cycle engines. A 
    ``lean-burn'' engine is defined as an Otto-cycle engine designed to run 
    at an air-fuel ratio significantly greater than stoichiometry during 
    the large majority of its operation.
        (5) Applicability to alternative fuel vehicles. These SFTP 
    standards do not apply to vehicles certified on fuels other than 
    gasoline and diesel fuel, but the standards do apply to the gasoline 
    and diesel fuel operation of flexible-fuel vehicles and dual-fuel 
    vehicles.
        (6) Single-roll electric dynamometer requirement. For all vehicles 
    certified to the SFTP standards, a single-roll electric dynamometer or 
    a dynamometer which produces equivalent results, as set forth in 
    Sec. 86.108, must be used for all types of emission testing to 
    determine compliance with the associated emission standards.
    
    
    Sec. 86.1710-97  [Redesignated as Sec. 86.1710-99 and Amended]
    
        20. Section 86.1710-97 is redesignated as Sec. 86.1710-99 and 
    amended by redesignating Tables R97-15 and R97-16 as Tables R99-15 and 
    R99-16, by revising the references ``R97-15'' and ``R97-16'' to read 
    ``R99-15'' and ``R99-16'', respectively, wherever they appear in the 
    section, by adding introductory text to paragraph (a), by revising 
    paragraphs (a)(1), (a)(3)(i), (a)(3)(iii) (A) and (B), (a)(4)(i), 
    (a)(4)(iii) (A) and (B), (a)(5)(ii), (b)(4), (c) (1) and (2), (c)(6) 
    through (c)(8), (d), (e)(2), and (e)(4)(ii), and by adding paragraph 
    (c)(9), to read as follows:
    
    
    Sec. 86.1710-99  Fleet average non-methane organic gas exhaust emission 
    standards for light-duty vehicles and light light-duty trucks.
    
        (a) Fleet average NMOG standards and compliance. (1) Each 
    manufacturer shall certify light-duty vehicles or light light-duty 
    trucks to meet the exhaust emission standards in this subpart for 
    TLEVs, LEVs, ULEVs, or ZEVs, or the exhaust emission standards of 
    Sec. 86.096-8(a)(1)(i) and subsequent model year provisions or 
    Sec. 86.097-9(a)(1)(i) and subsequent model year provisions, such that, 
    using the applicable intermediate useful life standards, the 
    manufacturer's fleet average NMOG values for light-duty vehicles and 
    light light-duty trucks sold in the applicable region according to the 
    specifications of Tables R99-15 and R99-16 are less than or equal to 
    the standards in Tables R99-15 and R99-16 in the rows designated with 
    the applicable vehicle type, loaded vehicle weight, and model year, as 
    follows:
    
    Table R99-15--Fleet Average Non-Methane Organic Gas Standards (g/mi) for
      Light-Duty Vehicles and Light Light-Duty Trucks Sold in the Northeast 
                                 Trading Region                             
    ------------------------------------------------------------------------
                                                                      Fleet 
             Vehicle type           Loaded vehicle    Model year     average
                                        weight                        NMOG  
    ------------------------------------------------------------------------
    Light light-duty vehicles.....  All...........  1999..........     0.148
                                                    2000..........     0.095
    and                                                                     
    Light light-duty trucks.......  0-3750........                          
    Light light-duty trucks.......  3751-5750.....  1999..........     0.190
                                                    2000..........     0.124
    ------------------------------------------------------------------------
    
    
    Table R99-16--Fleet Average Non-Methane Organic Gas Standards (g/mi) For
     Light-Duty Vehicles and Light Light-Duty Trucks Sold in the All States 
                                 Trading Region                             
    ------------------------------------------------------------------------
                                                                      Fleet 
             Vehicle type           Loaded vehicle    Model year     average
                                        weight                        NMOG  
    ------------------------------------------------------------------------
    Light-duty vehicles...........  All...........  2001 and later     0.075
    and                                                                     
    Light light-duty trucks.......  0-3750........                          
    Light light-duty trucks.......  3751-5750.....  2001 and later     0.100
    ------------------------------------------------------------------------
    
    
    [[Page 984]]
    
    * * * * *
        (3)(i) Each manufacturer's applicable fleet average NMOG value for 
    all light light-duty trucks from 0-3750 lbs. loaded vehicle weight and 
    light-duty vehicles sold in the applicable region according to Tables 
    R99-15 and R99-16 shall be calculated in units of g/mi NMOG according 
    to the following equation, where the term ``Sold'' means sold in the 
    applicable region according to Tables R99-15 and R99-16, and the term 
    ``Vehicles'' means light light-duty trucks from 0-3750 lbs loaded 
    vehicle weight and light-duty vehicles: (((No. of Vehicles Certified to 
    the Federal Tier 1 Exhaust Emission Standards and Sold) x (0.25))+((No. 
    of TLEVs Sold excluding HEVs) x  (0.125)) +((No. of LEVs Sold excluding 
    HEVs) x (0.75))+((No. of ULEVs Sold excluding HEVs) x (0.040))+(HEV 
    contribution factor))/(Total No. of Vehicles Sold, including ZEVs and 
    HEVs).
        (A) For model years 1997 through 2000, ``Vehicles'' in the 
    preceding equation shall include California-certified vehicles, 
    including vehicles certified to California Tier 1 standards.
        (B) For model years 2001 and later, ``vehicles'' in the preceding 
    equation shall not include California-certified vehicles unless they 
    are also certified under the National LEV program.
    * * * * *
        (iii)(A) For any model year in which a manufacturer certifies its 
    entire fleet of light-duty vehicles and light light-duty trucks from 0-
    3750 lbs LVW to intermediate useful life NMOG emission standards 
    specified in Secs. 86.1708 and 86.1709 that are less than or equal to 
    the applicable fleet average NMOG standard specified in Tables R99-15 
    and R99-16, the manufacturer may elect not to calculate a fleet average 
    NMOG value for such vehicles for that model year.
        (B) The fleet average NMOG value for a manufacturer electing under 
    paragraph (a)(3)(iii)(A) of this section not to calculate a fleet 
    average NMOG value shall be deemed to be the applicable fleet average 
    NMOG standard specified in Table R99-15 or R99-16 for the applicable 
    model year.
    * * * * *
        (4)(i) Each manufacturer's applicable fleet average NMOG value for 
    all light light-duty trucks from 3751-5750 lbs loaded vehicle weight 
    sold in the applicable region according to Tables R99-15 and R99-16 
    shall be calculated in units of g/mi NMOG according to the following 
    equation, where the term ``Sold'' means sold in the applicable region 
    according to Tables R97-15 and R97-16, and the term ``Vehicles'' means 
    light light-duty trucks from 3751-5750 lbs loaded vehicle weight: 
    (((No. of Vehicles Certified to the Federal Tier 1 Exhaust Emission 
    Standards and Sold) x (0.32))+((No. of TLEVs Sold excluding 
    HEVs) x (0.160))+((No. of LEVs Sold excluding HEVs) x (0.100))+(No. of 
    ULEVs Sold excluding HEVs) x (0.050))+(HEV Contribution factor))/(Total 
    No. of Vehicles Sold, including ZEVs and HEVs).
        (A) For model years 1997 through 2000, ``Vehicles'' in the 
    preceding equation shall include California-certified vehicles, 
    including vehicles certified to California Tier 1 standards.
        (B) For model years 2001 and later, ``Vehicles'' in the preceding 
    equation shall not include California-certified vehicles unless they 
    are also certified under the National LEV program.
    * * * * *
        (iii)(A) For any model year in which a manufacturer certifies its 
    entire fleet of light light-duty trucks from 3751-5750 lbs LVW to 
    intermediate useful life NMOG emission standards specified in 
    Sec. 86.1709 that are less than or equal to the applicable fleet 
    average NMOG requirements specified in Tables R99-15 and R99-16, the 
    manufacturer may elect not to calculate a fleet average NMOG value for 
    such vehicles for that model year.
        (B) The fleet average NMOG value for a manufacturer electing under 
    paragraph (a)(4)(iii)(A) of this section not to calculate a fleet 
    average NMOG value shall be deemed to be the applicable fleet average 
    NMOG standard specified in Table R99-15 or R99-16 for the applicable 
    model year.
    * * * * *
        (5) * * *
        (ii) Adequate information includes the number of vehicles 
    purchased, vehicle makes and models, and the associated engine 
    families. A copy of the letter should be sent to: Director, Vehicle 
    Programs and Compliance Division, U.S. Environmental Protection Agency, 
    2565 Plymouth Road, Ann Arbor, Michigan, 48105.
    * * * * *
        (b) * * *
        (4) For each applicable region and model year, a manufacturer's 
    available credits or level of debits shall be the sum of credits or 
    debits derived from the respective class A and class B averaging sets 
    for that region and model year. Paragraph (d)(2)(ii)(C) of this section 
    contains a special provision for manufacturers that end model year 2000 
    with a debit balance in the NTR.
        (c) * * *
        (1) Only credits generated in the NTR may be used to offset NMOG 
    debits incurred in the NTR. Manufacturers may use in the ASTR credits 
    generated in the NTR.
        (2) Only after credits are earned may they be used, traded, or 
    carried over to another model year. Before trading or carrying over 
    credits to the next model year, a manufacturer must apply available 
    credits to offset any of its debits from the same region, where the 
    deadline to offset such debits has not yet passed.
    * * * * *
        (6) Prior to model year 2001, low volume manufacturers may earn 
    credits in the NTR to transfer to other motor vehicle manufacturers for 
    use in the NTR or the ASTR, or to bank for their own use in the ASTR. 
    Such credits will be calculated as set forth in paragraphs (a) and (b) 
    of this section, except that the applicable fleet average NMOG standard 
    shall be 0.25 g/mi NMOG for the averaging set for light light-duty 
    trucks from 0-3750 lbs LVW and light-duty vehicles or 0.32 g/mi NMOG 
    for the averaging set for light light-duty trucks from 3751-5750 lbs 
    LVW. Credits shall be discounted in accordance with the provisions in 
    paragraph (c)(4) of this section.
        (7) Prior to model year 2001, manufacturers may earn credits in the 
    ASTR states that are not in the NTR and may bank those credits for use 
    in the ASTR. Such credits will be calculated as set forth in paragraphs 
    (a) and (b) of this section, except that the applicable fleet average 
    NMOG standard shall be 0.25 g/mi NMOG for the averaging set for light 
    light-duty trucks from 0-3750 lbs LVW and light-duty vehicles or 0.32 
    g/mi NMOG for the averaging set for light light-duty trucks from 3751-
    5750 lbs LVW, and ``sold'' shall mean sold in the ASTR states that are 
    not in the NTR.
        (i) Emission credits earned in the ASTR states outside the NTR 
    prior to model year 2001 shall be treated as generated in model year 
    2001.
        (ii) In the 2001 model year, a one-time discount rate of 10 percent 
    shall be applied to all credits earned under the provisions of this 
    paragraph (c)(7).
        (iii) These credits shall be discounted in accordance with the 
    provisions in paragraph (c)(4) of this section.
        (8) Manufacturers may earn and bank credits in the NTR for model 
    years 1997 and 1998. In states without a Section 177 Program effective 
    in model year 1997 or 1998, such credits will be calculated as set 
    forth in paragraphs (a) and (b) of this section, except that the 
    applicable fleet average NMOG standard shall be 0.200 g/mi NMOG for the 
    averaging set for light light-duty trucks from 0-3750 lbs LVW and 
    light-duty
    
    [[Page 985]]
    
    vehicles or 0.256 g/mi NMOG for the averaging set for light light-duty 
    trucks from 3751-5750 lbs LVW. In states that opt into National LEV and 
    have a Section 177 Program effective in model year 1997 or 1998, such 
    credits will equal the unused credits earned in those states.
        (i) Emissions credits earned in the NTR prior to the 1999 model 
    year shall be treated as generated in the 1999 model year.
        (ii) In the 1999 model year, a one-time discount rate of 10 percent 
    shall be applied to all credits earned under the provisions of this 
    paragraph (c)(8).
        (iii) These credits shall be discounted in accordance with the 
    provisions in paragraph (c)(4) of this section.
        (9) There are no property rights associated with credits generated 
    under the provisions of this section. Credits are a limited 
    authorization to emit the designated amount of emissions. Nothing in 
    the regulations or any other provision of law should be construed to 
    limit EPA's authority to terminate or limit this authorization through 
    a rulemaking. If EPA were to terminate or limit the authorization to 
    emit associated with emissions credits generated under the provisions 
    of this section, this paragraph (c)(9) would have no effect on 
    manufacturers' ability to opt out of the National LEV program pursuant 
    to Sec. 86.1707.
        (d) Fleet average NMOG debits. (1) Manufacturers shall offset any 
    debits for a given model year by the fleet average NMOG reporting 
    deadline for the model year following the model year in which the 
    debits were generated. Manufacturers may offset debits by generating 
    credits or acquiring credits generated by another manufacturer. Only 
    credits generated in the NTR may be used to offset NMOG debits 
    generated in the NTR.
        (2) The provisions of this paragraph (d)(2) apply only when a 
    manufacturer has a debit balance in the NTR at the end of model year 
    2000. Manufacturers shall offset any debits incurred in the NTR for 
    model year 2000 by the fleet average NMOG reporting deadline for model 
    year 2001.
        (i) A manufacturer may offset debits generated in the NTR in model 
    year 2000 either by generating credits in the NTR in model year 2001 or 
    by applying NTR credits acquired under the provisions of this section.
        (ii) If a manufacturer has a debit balance in the NTR at the end of 
    model year 2000, then such manufacturer shall be required to calculate 
    fleet average NMOG values for both the NTR and the ASTR for model year 
    2001.
        (A) The NTR values shall be calculated according to paragraphs (a) 
    and (b) of this section, with the fleet average NMOG standards equal to 
    the standards for model year 2001 in the ASTR.
        (B) If such a manufacturer has a credit balance in the NTR for 
    model year 2001, before trading or carrying over credits to the next 
    model year, the manufacturer must apply available NTR credits to offset 
    its debits in the NTR.
        (C) Notwithstanding paragraph (b)(4) of this section, for the ASTR 
    and model year 2001, such a manufacturer's available credits or level 
    of debits shall be the sum of credits or debits derived from the 
    respective class A and class B averaging sets for the ASTR and model 
    year 2001, minus any credits used pursuant to paragraph (d)(2)(ii)(B).
        (iii) To transfer a credit as an NTR credit earned in model year 
    2001, a manufacturer must have credits generated in the NTR based on 
    separate fleet average NMOG values calculated for the NTR in model year 
    2001. In addition, the number of model year 2001 NTR credits available 
    for a manufacturer to transfer cannot exceed the manufacturer's 
    available number of model year 2001 ASTR credits. Any transferred model 
    year 2001 NTR credits shall be deducted from the manufacturer's 
    available model year 2001 ASTR credits.
        (3)(i) Failure to meet the requirements of paragraphs (a) through 
    (d) of this section within the required timeframe for offsetting debits 
    will be considered to be a failure to satisfy the conditions upon which 
    the certificate(s) was issued and the individual noncomplying vehicles 
    not covered by the certificate shall be determined according to this 
    section.
        (ii) If debits are not offset within the specified time period, the 
    number of vehicles not meeting the fleet average NMOG standards and not 
    covered by the certificate shall be calculated by dividing the total 
    amount of debits for the model year by the fleet average NMOG standard 
    applicable for the model year and averaging set in which the debits 
    were first incurred. If both averaging sets are in debit, any 
    applicable credits will first be allocated between the averaging sets 
    according to the manufacturer's expressed preferences. Then, the number 
    of vehicles not covered by the certificate shall be calculated using 
    the revised debit values.
        (iii) EPA will determine the vehicles for which the condition on 
    the certificate was not satisfied by designating vehicles in those 
    engine families with the highest certification NMOG emission values 
    first and continuing until a number of vehicles equal to the calculated 
    number of noncomplying vehicles as determined above is reached. If this 
    calculation determines that only a portion of vehicles in an engine 
    family contribute to the debit situation, then EPA will designate 
    actual vehicles in that engine family as not covered by the 
    certificate, starting with the last vehicle produced and counting 
    backwards.
        (4) If a manufacturer opts out of the National LEV program pursuant 
    to Sec. 86.1707, the manufacturer continues to be responsible for 
    offsetting any debits outstanding on the effective date of the opt-out 
    within the required time period. Any failure to offset the debits will 
    be considered to be a violation of paragraph (d)(1) of this section and 
    may subject the manufacturer to an enforcement action for sale of 
    vehicles not covered by a certificate, pursuant to paragraph (d)(2) of 
    this section.
        (5) For purposes of calculating tolling of the statute of 
    limitations, a violation of the requirements of paragraph (d)(1) of 
    this section, a failure to satisfy the conditions upon which a 
    certificate(s) was issued and hence a sale of vehicles not covered by 
    the certificate, all occur upon the expiration of the deadline for 
    offsetting debits specified in paragraph (d)(1) of this section.
    * * * * *
        (e) * * *
        (2) A manufacturer may not sell credits that are not available for 
    sale pursuant to the provisions in paragraphs (c)(2) or (d)(2) of this 
    section.
    * * * * *
        (4) * * *
        (ii) Failure to offset the debits within the required time period 
    will be considered a failure to satisfy the conditions upon which the 
    certificate(s) was issued and will be addressed pursuant to paragraph 
    (d)(3) of this section.
    * * * * *
    
    
    Sec. 86.1711-97   [Redesignated as Sec. 86.1711-99 and Amended]
    
        21. Section 86.1711-97 is redesignated as Sec. 86.1711-99 and 
    amended by removing and reserving paragraph (b).
    
    
    Sec. 86.1712-97  [Redesignated as Sec. 86.1712 and Amended]
    
        22. Section 86.1712-97 is redesignated as Sec. 86.1712-99 and 
    amended by revising paragraphs (a)(2)(iii), (b)(1), and (b)(3)(vi), to 
    read as follows:
    
    [[Page 986]]
    
    Sec. 86.1712-99  Maintenance of records; submittal of information.
    
        (a) * * *
        (2) * * *
        (iii) EPA engine family, or if applicable for model year 1999 or 
    2000, the California engine family;
    * * * * *
        (b) * * *
        (1) Each covered manufacturer shall submit an annual report. Except 
    as provided in paragraph (b)(2) of this section, the annual report 
    shall contain, for each averaging set, the fleet average NMOG value 
    achieved, all values required to calculate the NMOG value, the number 
    of credits generated or debits incurred, and all the values required to 
    calculate the credits or debits. For each applicable region (NTR and 
    ASTR), the annual report shall contain the resulting balance of credits 
    or debits.
    * * * * *
        (3) * * *
        (vi) Region (NTR or ASTR) to which the credits belong.
    * * * * *
    
    
    Sec. 86.1713-97   [Redesignated as Sec. 86.1713-99]
    
        23. Section 86.1713-97 is redesignated as Sec. 86.1713-99.
    
    
    Sec. 86.1714-97   [Redesignated as Sec. 86.1714-99]
    
        24. Section 86.1714-97 is redesignated as Sec. 86.1714-99.
    
    
    Sec. 86.1716-97   [Redesignated as Sec. 86.1716-99 and Amended]
    
        25. Section 86.1716-97 is redesignated as Sec. 86.1716-99 and 
    amended by removing and reserving paragraph (b).
    
    
    Sec. 86.1717-97   [Redesignated as Sec. 86.1717-99 and Amended]
    
        26. Section 86.1717-97 is redesignated as Sec. 1717-99 and amended 
    by revising the section heading, to read as follows:
    
    
    Sec. 86.1717-99  Emission control diagnostic system for 1999 and later 
    light-duty vehicles and light-duty trucks.
    
    * * * * *
    
    
    Sec. 86.1721-97   [Redesignated as Sec. 86.1721-99]
    
        27. Section 86.1721-97 is redesignated as Sec. 86.1721-99.
    
    
    Sec. 86.1723-97   [Redesignated as Sec. 86.1723-99]
    
        28. Section 86.1723-97 is redesignated as Sec. 86.1723-99 and is 
    revised to read as follows:
    
    
    Sec. 86.1723-99  Required data.
    
        The provisions of Sec. 86.096-23 and subsequent model year 
    provisions apply to this subpart, with the following exceptions and 
    additions:
        (a) The provisions of Sec. 86.096-23(c)(1) and subsequent model 
    year provisions apply to this subpart, with the following addition:
        (1) For all TLEVs, LEVs, and ULEVs certifying on a fuel other than 
    conventional gasoline, manufacturers shall multiply the NMOG exhaust 
    certification level for each emission-data vehicle by the appropriate 
    reactivity adjustment factor listed in Sec. 86.1777(d)(2)(i) or 
    established by the Administrator pursuant to Appendix XVII of this part 
    to demonstrate compliance with the applicable NMOG emission standard. 
    For all TLEVs, LEVs, and ULEVs certifying on natural gas, manufacturers 
    shall multiply the NMOG exhaust certification level for each emission-
    data vehicle by the appropriate reactivity adjustment factor listed in 
    Sec. 86.1777(d)(2)(i) or established by the Administrator pursuant to 
    Appendix XVII of this part and add that value to the product of the 
    methane exhaust certification level for each emission-data vehicle and 
    the appropriate methane reactivity adjustment factor listed in 
    Sec. 86.1777(d)(2)(ii) or established by the Administrator pursuant to 
    Appendix XVII of this part to demonstrate compliance with the 
    applicable NMOG emission standard. Manufacturers requesting to certify 
    to existing standards utilizing an adjustment factor unique to its 
    vehicle/fuel system must follow the data requirements described in 
    Appendix XVII of this part. A separate formaldehyde exhaust 
    certification level shall also be provided for demonstrating compliance 
    with emission standards for formaldehyde.
        (2) [Reserved]
        (b) The provisions of Sec. 86.096-23(l) introductory text and 
    subsequent model year provisions do not apply to this subpart. The 
    following shall instead apply to this subpart:
        (1) Additionally, manufacturers certifying vehicles shall submit 
    for each model year 2001 through 2004 light-duty vehicle and light 
    light-duty truck engine family, the information listed in Sec. 86.096-
    23(l)(1) and (2). If applicable, manufacturers shall also submit 
    ``Alternative or Equivalent Phase-in Schedules'' before or during 
    calendar year 2001 for light-duty vehicles and light light-duty trucks.
        (2) [Reserved]
        (c) In addition to the provisions of Sec. 86.096-23 and subsequent 
    model year provisions, the following requirements shall apply to this 
    subpart:
        (1) For each engine family certified to TLEV, LEV, or ULEV 
    standards, manufacturers shall submit with the certification 
    application, an engineering evaluation demonstrating that a 
    discontinuity in emissions of non-methane organic gases, carbon 
    monoxide, oxides of nitrogen and formaldehyde measured on the Federal 
    Test Procedure (subpart B of this part) does not occur in the 
    temperature range of 20 to 86 deg F. For diesel vehicles, the 
    engineering evaluation shall also include particulate emissions.
        (2) [Reserved]
    
    
    Sec. 86.1724   [Redesignated as Sec. 86.1724-99 and Amended]
    
        29. Section 86.1724-97 is redesignated as Sec. 86.1724-99 and 
    amended by revising paragraph (b) introductory text and adding 
    paragraph (b)(2), to read as follows:
    
    
    Sec. 86.1724-99  Test vehicles and engines.
    
    * * * * *
        (b) The provisions of Sec. 86.096-24(b) and subsequent model year 
    provisions apply to this subpart with the following additions:
    * * * * *
        (2) For vehicles certified to the SFTP exhaust emission standards, 
    if air conditioning is projected to be available on any vehicles within 
    the engine family, the selection of engine codes will be limited 
    selections which have air conditioning available and would require that 
    any vehicle selected under this section has air conditioning installed 
    and operational.
    
    
    Sec. 86.1725-97   [Redesignated as Sec. 86.1725-99 and Amended]
    
        30. Section 86.1725-97 is redesignated as Sec. 86.1725-99 and 
    amended by adding paragraph (d), to read as follows:
    
    
    Sec. 86.1725-99  Maintenance.
    
    * * * * *
        (d) When air conditioning SFTP exhaust emission tests are required, 
    the manufacturer must document that the vehicle's air conditioning 
    system is operating properly and that system parameters are within 
    operating design specifications prior to testing. Required air 
    conditioning system maintenance is performed as unscheduled maintenance 
    that does not require the Administrator's approval.
    
    
    Sec. 86.1726-97   [Redesignated as Sec. 86.1726-99 and Amended]
    
        31. Section 86.1726-97 is redesignated as Sec. 86.1726-99 and
    
    [[Page 987]]
    
    amended by revising paragraph (c)(1), to read as follows:
    
    
    Sec. 86.1726-99  Mileage and service accumulation; emission 
    measurements.
    
    * * * * *
        (c) * * *
        (1) For vehicles certified to the SFTP exhaust emission standards, 
    complete exhaust emission tests will include both the FTP and the SFTP 
    tests. The Administrator will accept the manufacturer's determination 
    of the mileage at which the engine-system combination is stabilized for 
    emission data testing if (prior to testing) a manufacturer determines 
    that the interval chosen yields emissions performance that is stable 
    and representative of design intent. Sufficient mileage should be 
    accumulated to reduce the possible effects of any emissions variability 
    that is the result of insufficient vehicle operation. Of primary 
    importance in making this determination is the behavior of the 
    catalyst, EGR valve, trap oxidizer or any other part of the ECS which 
    may have non-linear aging characteristics. In the alternative, the 
    manufacturer may elect to accumulate 4,000 mile +/-250 miles on each 
    test vehicle within an engine family without making a determination.
    * * * * *
    
    
    Sec. 86.1728-97   [Redesignated as Sec. 86.1728-99]
    
        32. Section 86.1728-97 is redesignated as Sec. 86.1728-99.
    
    
    Sec. 86.1734-97   [Redesignated as Sec. 86.1734-99]
    
        33. Section 86.1734-97 is redesignated as Sec. 86.1734-99.
    
    
    Sec. 86.1735-97   [Redesignated as Sec. 86.1735-99]
    
        34. Section 86.1735-97 is redesignated as Sec. 86.1735-99.
    
    
    Sec. 86.1770-97   [Redesignated as Sec. 86.1770-99 and Amended]
    
        35. Section 86.1770-97 is redesignated as Sec. 86.1770-99 and 
    amended by revising paragraph (a)(2), to read as follows:
    
    
    Sec. 86.1770-99  All-Electric Range Test requirements.
    
    * * * * *
        (a) * * *
        (2) Driving schedule.
        (i) Determination of All-Electric Range--Highway. At the end of the 
    cold soak period, the vehicle shall be placed, either driven or pushed, 
    onto a dynamometer and operated through an Urban Dynamometer Driving 
    Schedule, found in 40 CFR part 86, Appendix I, until the vehicle is no 
    longer able to maintain within 5 miles per hour of the speed 
    requirements or within 2 seconds of the time requirements of the 
    driving schedule. For hybrid electric vehicles, this determination 
    shall be performed without the use of the auxiliary power unit.
        (ii) Determination of All-Electric Range--Urban. At the end of the 
    cold soak period, the vehicle shall be placed, either driven or pushed, 
    onto a dynamometer and operated through a Highway Fuel Economy Driving 
    Schedule, found in 40 CFR part 600, Appendix I, until the vehicle is no 
    longer able to maintain within 5 miles per hour of the speed 
    requirements or within 2 seconds of the time requirements of the 
    driving schedule. For hybrid electric vehicles, this determination 
    shall be performed without the use of the auxiliary power unit.
    * * * * *
    
    
    Sec. 86.1771-97   [Redesignated as Sec. 86.1771-99]
    
        36. Section 86.1771-97 is redesignated as Sec. 86.1771-99.
    
    
    Sec. 86.1772-97   [Redesignated as Sec. 86.1772-99 and Amended]
    
        37. Section 86.1772-97 is redesignated as Sec. 86.1772-99 and 
    amended by revising the section heading, to read as follows:
    
    
    Sec. 86.1772-99   Road load power, test weight, and inertia weight 
    class determination.
    
    * * * * *
    
    
    Sec. 86.1773-97   [Redesignated as Sec. 86.1773-99 and Amended]
    
        38. Section 86.1773-97 is redesignated as Sec. 86.1773-99 and 
    amended by adding paragraph (d), to read as follows:
    
    
    Sec. 86.1773-99  Test sequence; general requirements.
    
    * * * * *
        (d) A manufacturer has the option of simulating air conditioning 
    operation during testing at other ambient test conditions provided it 
    can demonstrate that the vehicle tailpipe exhaust emissions are 
    representative of the emissions that would result from the SC03 cycle 
    test procedure and the ambient conditions of paragraph 86.161-00. The 
    Administrator has approved two optional air conditioning test 
    simulation procedures, AC1 and AC2, for the 2001 to 2003 model years 
    only. If a manufacturer desires to conduct an alternative SC03 test 
    simulation other than AC1 and AC2, or the AC1 and AC2 simulations for 
    the 2004 and subsequent model years, the simulation test procedure must 
    be approved in advance by the Administrator.
    
    
    Secs. 86.1774-97 through 86.1780-97   [Redesignated as Secs. 86.1774-99 
    through 86.1780-99]
    
        39. Section 86.1774-97 is redesignated as Sec. 86.1774-99.
        40. Section 86.1775-97 is redesignated as Sec. 86.1775-99.
        41. Section 86.1776-97 is redesignated as Sec. 86.1776-99.
        42. Section 86.1777-97 is redesignated as Sec. 86.1777-99.
        43. Section 86.1778-97 is redesignated as Sec. 86.1778-99.
        44. Section 86.1779-97 is redesignated as Sec. 86.1779-99.
        45. Section 86.1780-97 is redesignated as Sec. 86.1780-99.
    
    
    Appendix XVIII to part 86   [Amended]
    
        46. Appendix XVIII to part 86 is amended by redesignating the 
    second of the two paragraphs currently designated as (b)(3) as 
    paragraph (b)(4).
    
    [FR Doc. 97-33314 Filed 12-31-97; 8:45 am]
    BILLING CODE 6560-50-P
    
    
    

Document Information

Effective Date:
1/7/1998
Published:
01/07/1998
Department:
Environmental Protection Agency
Entry Type:
Rule
Action:
Final rule.
Document Number:
97-33314
Dates:
This regulation is effective January 7, 1998. The information collection requirements contained in this rule has been approved by the Office of Management and Budget (OMB) and has an assigned OMB control number of 2060-0345.
Pages:
926-987 (62 pages)
Docket Numbers:
AMS-FRL-5938-8
RINs:
2060-AF75: Voluntary Standards for Light-Duty Vehicles (National 49 State Low-Emission Vehicles Program)
RIN Links:
https://www.federalregister.gov/regulations/2060-AF75/voluntary-standards-for-light-duty-vehicles-national-49-state-low-emission-vehicles-program-
PDF File:
97-33314.pdf
Supporting Documents:
» Legacy Index for Docket A-95-26
» Control of Air Pollution From New Motor Vehicles and New Motor Vehicle Engines: Finding of National Low Emission Vehicle (LEV) Program in Effect
» Control of Air Pollution From New Motor Vehicles and New Motor Vehicle Engines: State Commitments to National Low Emission Vehicle Program [A-95-26-VIII-A-2]
» Control of Emissions of Air Pollution From Highway Heavy-Duty Engines
» Control of Air Pollution From New Motor Vehicles and New Motor Vehicle Engines; Voluntary Standards for Light-Duty Vehicles; Extension of Comment Period
» Control of Air Pollution From New Motor Vehicles and New Motor Vehicle Engines: Voluntary Standards for Light-Duty Vehicles; Correction
» Control of Air Pollution From New Motor Vehicles and New Motor Vehicle Engines: Voluntary Standards for Light-Duty Vehicles
» Control of Air Pollution From New Motor Vehicles and New Motor Vehicle Engines: Voluntary Standards for Light-Duty Vehicles [A-95-26-IV-I-1]
» Control of Air Pollution From New Motor Vehicles and New Motor Vehicle Engines: Voluntary Standards for Light-Duty Vehicles; Extension of Public Comment Period
» Control of Air Pollution From New Motor Vehicles and New Motor Vehicle Engines: Voluntary Standards for Light-Duty Vehicles [A-95-26-III-A-1]
CFR: (62)
13 CFR 86.1708(b)
13 CFR 86.1777(d)
13 CFR 86.1705(g)
13 CFR 86.1702
13 CFR 86.1717
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