95-24940. Clean Air Act Approval and Promulgation of New Source Review; Implementation Plan Addressing New Source Review in Nonattainment Areas; Louisiana; Approval and Promulgation of Air Quality Implementation Plans; Louisiana Administrative Code (...  

  • [Federal Register Volume 60, Number 194 (Friday, October 6, 1995)]
    [Proposed Rules]
    [Pages 52352-52357]
    From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
    [FR Doc No: 95-24940]
    
    
    
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    ENVIRONMENTAL PROTECTION AGENCY
    40 CFR Part 52
    
    [LA-14-1-5941; FRL-5310-1]
    
    
    Clean Air Act Approval and Promulgation of New Source Review; 
    Implementation Plan Addressing New Source Review in Nonattainment 
    Areas; Louisiana; Approval and Promulgation of Air Quality 
    Implementation Plans; Louisiana Administrative Code (LAC), Title 33, 
    Environmental Quality, Part III. Air, Chapter 5. Permit Procedures, 
    Section 504. Nonattainment New Source Review (NSR) Procedures
    
    AGENCY: Environmental Protection Agency (EPA).
    
    ACTION: Proposed rule.
    
    -----------------------------------------------------------------------
    
    SUMMARY: The EPA proposes approval of the State Implementation Plan 
    (SIP) revision, submitted by the State of Louisiana for the purpose of 
    meeting requirements of the Clean Air Act (Act or CAA), as amended in 
    1990, with regard to NSR in areas that have not attained the national 
    ambient air quality standards (NAAQS).
    
    DATES: Comments on this proposed action must be received in writing on 
    or before November 6, 1995.
    
    ADDRESSEES: Written copies on this action should be addressed to Ms. 
    Jole C. Luehrs, Chief, Air Permits Section, at the EPA Regional Office 
    listed below. Copies of the documents relevant to this proposed action 
    are available for public inspection during normal business hours at the 
    following locations. The interested persons wanting to examine these 
    documents should make an appointment with the appropriate office at 
    least 24 hours before the visiting day.
    U.S. Environmental Protection Agency, Region 6, Multimedia Planning and 
    Permitting Division (6PD), 1445 Ross Avenue, Suite 700, Dallas, Texas 
    75202-2733
    Louisiana Department of Environmental Quality, H. B. Garlock Building, 
    7290 Bluebonnet Boulevard, Baton Rouge, Louisiana 70810.
    
    FOR FURTHER INFORMATION CONTACT: Mr. Richard A. Barrett, Air Permits 
    Section (6PD-R), Multimedia Planning and Permitting Division, U.S. EPA 
    Region 6, 1445 Ross Avenue, Dallas, Texas 75202-2733, telephone (214) 
    665-7227, facsimile (214) 665-2164.
    
    SUPPLEMENTARY INFORMATION:
    
    I. Background
    
        The air quality planning requirements for nonattainment new source 
    review are set out in part D of Title I of the CAA, as amended in 1990. 
    The EPA has issued a ``General Preamble'' describing the EPA's 
    preliminary views on how the EPA intends to review SIPs and SIP 
    revisions submitted under part D; including those State submittals 
    containing nonattainment area NSR SIP requirements [see 57 FR 13498 
    (April 16, 1992) and 57 FR 18070 (April 28, 1992)]. Because the EPA is 
    describing its interpretations here only in broad terms, the reader 
    should refer to the General Preamble for a more detailed discussion of 
    the interpretations of part D advanced in this proposal and the 
    supporting rationale. The EPA is currently developing a proposed rule 
    to implement the changes under the 1990 Amendments in the NSR 
    provisions in parts C and D of Title I of the Act. The EPA anticipates 
    that the proposed rule will be published for public comment in 1995. If 
    the EPA has not taken final action on States' NSR submittals by that 
    time, the EPA will refer to the proposed rule as the most authoritative 
    guidance available regarding the approvability of the submittals. The 
    EPA expects to take final action to promulgate a final rule to 
    implement the parts C and D changes sometime during 1996. Upon 
    promulgation of those regulations, the EPA will review those NSR SIP 
    submittals, on which it has taken final action, to determine whether 
    additional SIP revisions are necessary.
        Prior to EPA approval of a State's NSR SIP submission, the State 
    may continue permitting only in accordance with the new statutory 
    requirements for permit applications completed after the relevant SIP 
    submittal date. This policy was explained in transition guidance 
    memoranda from John Seitz dated March 11, 1991, ``New Source Review 
    (NSR) Program Transitional Guidance'', and September 3, 1992, ``New 
    Source Review (NSR) Program Supplemental Transitional Guidance on 
    Applicability of New Part D NSR Permit Requirements''.
        As explained in the memorandum of March 11, 1991, the EPA does not 
    believe Congress intended to mandate the more stringent Title I NSR 
    requirements during the time provided for SIP development. States were 
    thus allowed to continue to permit consistent with requirements in 
    their current NSR SIPs during that period, or apply 40 CFR part 51, 
    Appendix S for newly designated areas that did not previously have NSR 
    SIP requirements.
        The September 3, 1992, memorandum also addressed the situation 
    where States did not submit the part D NSR SIP requirements or 
    revisions by the applicable statutory deadline. For permit applications 
    complete by the SIP submittal deadline, States may issue final permits 
    under the prior NSR rules, 
    
    [[Page 52353]]
    assuming certain conditions in the September 3 memorandum are met. 
    However, for applications completed after the SIP submittal deadline, 
    the EPA will consider the source to be in compliance with the Act where 
    the source obtains from the State a permit that is consistent with the 
    substantive new NSR part D provisions in the Act. The EPA believes this 
    guidance continues to apply to permitting pending final action on NSR 
    SIP submittals.
    
    II. Proposed Rulemaking Action
    
    A. Procedural Background
    
        The Act requires States to observe certain procedural requirements 
    in developing implementation plans and plan revisions for submission to 
    the EPA. Section 110(a)(2) of the Act, 42 U.S.C. 7410(a)(2), provides 
    that each implementation plan submitted by a State must be adopted 
    after reasonable notice and public hearing.1 Section 110(l) of the 
    Act similarly provides that each revision to an implementation plan 
    submitted by a State under the Act must be adopted by such State after 
    reasonable notice and public hearing.
    
        \1\  Section 172(c)(7) of the Act provides that plan provisions 
    for nonattainment areas shall meet the applicable provisions of 
    Section 110(a)(2).
    ---------------------------------------------------------------------------
    
        After adequate public notice, the State of Louisiana held a public 
    hearing, on December 30, 1992, to entertain public comment on the NSR 
    implementation plan, which replaced the emergency rules submitted to 
    the EPA on November 10, 1992. Following the public hearing, the plan 
    was adopted by the State on February 20, 1993, and submitted to the EPA 
    on March 3, 1993, as a proposed revision to the SIP. The State 
    submitted, to the EPA, revisions for the Louisiana SIP to implement the 
    NSR requirements of the CAA in nonattainment areas in Louisiana. 
    Louisiana made the SIP revision to LAC Title 33, Part III, Chapter 5. 
    Permit Procedures, by the addition of section 504. Nonattainment New 
    Source Review Procedures. The SIP revision was reviewed by the EPA to 
    determine administrative completeness shortly after its submittal. The 
    completeness review was based upon the criteria as set out at 40 CFR 
    part 51 Appendix V. The submittal was found to be complete on July 10, 
    1993; and a letter dated August 3, 1993, was forwarded to the Governor 
    indicating the completeness of the submittal and the next steps to be 
    taken in the review process. Prior to the EPA acting on these 
    revisions, the State submitted a notice of adoption and final rule on 
    Regulation LAC 33:III.Chapter 5, which included and amended section 
    504, on November 15, 1993, in order to meet the requirements mandated 
    by sections 173 and 182 of the Act. This proposed rule applies to, and 
    contains an evaluation of, section 504.
        In this action, the EPA proposes approval of the Louisiana 
    nonattainment NSR SIP rules identified in this notice, and invites 
    public comment on the action. Those sections submitted to the EPA not 
    included in the revisions specifically addressed in this proposal will 
    be the subject of a future rulemaking. In this rulemaking action on the 
    Louisiana nonattainment NSR SIP, the EPA is proposing to apply its 
    interpretations, taking into consideration the specific factual issues 
    presented. Thus, the EPA will consider any timely submitted comments 
    prior to the EPA's taking final action on this proposed rule.
    
    B. General Nonattainment NSR Requirements
    
        The statutory requirements for nonattainment NSR SIPs and 
    permitting are found at sections 172 and 173.
        The Act requires all States to have submitted, at a minimum, the 
    following nonattainment NSR provisions by November 15, 1992:
        1. Provisions to assure that calculation of emissions offsets, as 
    required by section 173(a)(1)(A), are based on the same emissions 
    baseline used in the demonstration of reasonable further progress. 
    Louisiana has established provisions to satisfy this section pursuant 
    to sections 504.F.4 and 504.F.5.
        2. Provisions to allow, according to section 173(c)(1), offsets to 
    be obtained in another nonattainment area if: the area in which the 
    offsets are obtained has an equal or higher nonattainment 
    classification; and emissions from the nonattainment area, in which the 
    offsets are obtained, contribute to a National Ambient Air Quality 
    Standards (NAAQS) violation, in the area in which the source would 
    construct. Louisiana has established provisions to satisfy this 
    section, pursuant to section 504.F.9.
        3. Provisions to assure, according to section 173(c)(1), that any 
    emissions offsets, obtained in conjunction with the issuance of a 
    permit to a new or modified source, must be in effect and enforceable 
    by the time the new or modified source is to commence operation. 
    Louisiana has established provisions to satisfy this section pursuant 
    to section 504.F.3.
        4. Provisions to assure that emissions increases, from new or 
    modified major stationary sources, are offset by real reductions in 
    actual emissions, as required by section 173(c)(1). Louisiana has 
    established provisions to satisfy this section pursuant to sections 
    504.D.3 and 504.F.7.
        5. Provisions, according to section 173(c)(2), to prevent emissions 
    reductions, otherwise required by the Act, from being credited for 
    purposes of satisfying the part D offset requirements. Louisiana has 
    established provisions to satisfy this section pursuant to sections 
    504.F.5. and 504.F.10.
        6. Provisions, according to section 173(a)(5), that, as a 
    prerequisite to issuing any part D permit, require an analysis of 
    alternative sites, sizes, production processes, and environmental 
    control techniques for proposed sources that demonstrates that the 
    benefits of the proposed source significantly outweigh the 
    environmental and social costs imposed as a result of its location, 
    construction, or modification. Louisiana has established provisions to 
    satisfy this section pursuant to section 504.D.6.
        7. Provisions, according to section 173(e), that allow any existing 
    or modified source, that tests rocket engines or motors, to use 
    alternative or innovative means to offset emissions increases from 
    firing and related cleaning, if four conditions are met: (a) the 
    proposed modification is for expansion of a facility already permitted 
    for such purposes; (b) the source has used all available offsets and 
    all reasonable means to obtain offsets and sufficient offsets are not 
    available; (c) the source has obtained a written finding by the 
    appropriate, sponsoring Federal agency that the testing is essential to 
    national security; and (d) the source will comply with an alternative 
    measure designed to offset any emissions increases not directly offset 
    by the source.
        In lieu of imposing any alternative offset measures, the permitting 
    authority may impose an emission offset amounting to no more than 1.5 
    times the average cost of stationary control measures adopted in that 
    area during the previous three years. Louisiana has established 
    provisions to satisfy this section pursuant to section 504.D.7.
        8. Provisions, according to section 173(a)(3), to assure that 
    owners or operators, of each proposed new or modified major stationary 
    source, demonstrate that all other major stationary sources, under the 
    same ownership in the State, are in compliance with the Act. Louisiana 
    has established provisions to satisfy this section pursuant to section 
    504.D.1.
        9. Provisions, according to section 173(a)(2), to assure that 
    permits for new and modified major stationary sources to construct and 
    operate may be issued 
    
    [[Page 52354]]
    if the proposed source is required to comply with the lowest achievable 
    emission rate. Louisiana has established provisions to satisfy this 
    requirement pursuant to section 504.D.2.
        10. Additionally, the State must assure that no interpollutant 
    trading is allowed as defined in 40 CFR part 51, Appendix S, section 
    IV, condition 3. Louisiana has established provisions to satisfy this 
    requirement pursuant to section 504.F.1.
        11. The public notice and participation requirements, previously 
    located in Section 504, have now been placed in LAC 33:III. Chapter 5. 
    Section 531, which will be acted on by the EPA in a future rulemaking 
    action. These requirements were located in the March 3, 1993, submittal 
    and were subsequently moved in the November 15, 1993, submittal to 
    Section 531. Public participation requirements have previously been 
    approved in the SIP.
    
    C. Ozone
    
        The general nonattainment NSR requirements are found in sections 
    172 and 173 of the Act and must be met by all nonattainment areas. 
    Requirements for ozone that supplement or supersede these requirements 
    are found in subpart 2 of part D. In addition, subpart 2 includes 
    section 182(f), which states that requirements, for major stationary 
    sources of volatile organic compounds (VOC), shall apply to major 
    stationary sources of oxides of nitrogen (NOX) unless the 
    Administrator makes certain determinations related to the benefits or 
    contribution of NOX control to air quality, ozone attainment, or 
    ozone air quality. States were required under section 182(a)(2)(C) to 
    adopt new NSR rules for ozone nonattainment areas by November 15, 1992.
    1. Marginal Ozone Nonattainment Areas
        For marginal ozone nonattainment areas, States must submit the 
    following NSR provisions:
        a. Definition of the term ``major stationary source'' that reflects 
    the section 302(j) 100 tons per year (tpy) VOC and, presumptively, the 
    100 tpy NOX threshold for determination of whether a source is 
    subject to part D NSR requirements as a major source.
        b. Provisions to ensure that new or modified major stationary 
    sources obtain offsets under section 182(a)(4) at a ratio of at least 
    1.1 to 1 in order to obtain an NSR permit.
    2. Moderate Ozone Nonattainment Areas
        For moderate ozone nonattainment areas, States must submit the 
    following NSR provisions:
        a. Definition of the term ``major stationary source'' that reflects 
    the section 302(j) 100 tpy VOC and, presumptively, the 100 tpy NOx 
    threshold for determination of whether a source is subject to part D 
    NSR requirements as a major source.
        b. Provisions to ensure that new or modified major stationary 
    sources obtain offsets under section 182(a)(4) at a ratio of at least 
    1.15 to 1 in order to obtain an NSR permit.
    3. Serious Ozone Nonattainment Areas
        For serious ozone nonattainment areas, States must submit the 
    following NSR provisions:
        a. Definition of the term ``major stationary source'' that reflects 
    the section 182(c) 50 tpy VOC and, presumptively, the 50 tpy NOX 
    threshold for determination of whether a source is subject to part D 
    requirements as a major source.
        b. Provisions to ensure that new or modified major stationary 
    sources obtain offsets under section 182(c)(10) at a ratio of at least 
    1.2 to 1 in order to obtain an NSR permit.
        c. Provisions to implement section 182(c)(6) of the Act such that 
    any proposed emissions increase is subject to the 25-ton de minimis 
    test over a five year period.
    4. Severe Ozone Nonattainment Areas
        For severe ozone nonattainment areas, States must submit the 
    following NSR provisions:
        a. Definition of the term ``major stationary source'' that reflects 
    the section 182(d) 25 tpy VOC and, presumptively, the 25 tpy NOX 
    threshold for determination of whether a source is subject to part D 
    requirements as a major source.
        b. Provisions to ensure that new or modified major stationary 
    sources obtain offsets at a ratio [under section 182(d)(2)] of at least 
    1.3 to 1 in order to obtain an NSR permit, unless the SIP requires all 
    existing major sources in the nonattainment area to use Best Available 
    Control Technology, in which case, the offset ratio is at least 1.2 to 
    1.
        c. Provisions to implement section 182(c)(6) of the Act such that 
    any proposed emissions increase is subject to the 25-ton de minimis 
    test over a five year period.
        Louisiana has established major source thresholds and offset ratios 
    for VOC and included provisions for NOX major stationary sources 
    as follows:
    
    ------------------------------------------------------------------------
           Area           Major source      Offset ratio                    
      classification       threshold           minimum       NOX provisions 
    ------------------------------------------------------------------------
    Marginal.........  100 tpy..........  1.10 to 1.......  See paragraph   
                                                             below.         
    Moderate.........  100 tpy..........  1.15 to 1.......  Identical to    
                                                             VOC.           
    Serious..........  50 tpy...........  1.20 to 1.......  Identical to    
                                                             VOC, see       
                                                             paragraph      
                                                             below.         
    Severe...........  25 tpy...........  1.30 to 1.......  Identical to    
                                                             VOC.           
    Extreme..........  Not applicable...  Not applicable..  Not applicable. 
    ------------------------------------------------------------------------
    
        The EPA is currently evaluating a petition for exemption from 
    NOX requirements pursuant to section 182(f), received on October 
    28, 1994, from the State of Louisiana. The petition regarding the 
    NOX offset requirement for the marginal ozone nonattainment area 
    of Calcasieu Parish, Louisiana, will be the subject of future EPA 
    action. If this petition is approved, the EPA intends to publish final 
    approval of the NSR SIP. If the petition is not approved, the EPA will 
    readdress the NSR SIP to require NOX offsets in the marginal ozone 
    nonattainment areas of Louisiana.
        The EPA has proposed approval of a petition for exemption from 
    NOX requirements pursuant to section 182(f), received from the 
    State of Louisiana on November 17, 1994, for the serious ozone 
    nonattainment area of Baton Rouge, and has proposed its approval on 
    August 18, 1995 (see 60 FR 43100). If approved, NOX offsets will 
    not be required in that area.
        Louisiana has established all of the above requirements for all 
    other ozone nonattainment areas.
        Additionally, for nonclassifiable (transitional or incomplete data) 
    ozone nonattainment areas, State rules for the marginal area 
    classification apply. For further information on nonclassifiable areas 
    see, ``General Preamble'' 57 Federal Register 55624 (April 16, 1992), 
    and the ``NOX supplement to the General Preamble'' 57 FR 13523 
    (November 25, 1993). 
    
    [[Page 52355]]
    
        In addition, Louisiana's plan submittal reflects appropriate 
    modification provisions, including a de minimis level of 25 tons.
    
    D. Carbon Monoxide (CO)
    
        The general part D NSR permit requirements apply in CO 
    nonattainment areas, and are supplemented by the CO requirements in 
    subpart 3 of part D.
        1. All moderate CO nonattainment areas, with a design value of 12.7 
    parts per million or less, must submit proposed part D NSR programs no 
    later than November 15, 1993. Such programs must have the following 
    provisions:
        a. Definition of the term ``major stationary source'' that reflects 
    the section 302(j) 100 tpy CO threshold for determination of whether a 
    source is subject to part D requirements as a major source.
        b. Provisions to ensure that new or modified major stationary 
    sources obtain offsets under section 173(a)(1)(A) at a ratio of at 
    least 1 to 1 in order to obtain an NSR permit.
        2. All States, with moderate CO nonattainment areas with a design 
    value greater than 12.7 ppm, were required to submit proposed part D 
    NSR programs by November 15, 1992. Such programs must have the 
    following provisions:
        a. Definition of the term ``major stationary source'' that reflects 
    the 100 tpy CO threshold for determination of whether a source is 
    subject to part D requirements as a major source.
        b. Provisions to ensure that new or modified major stationary 
    sources obtain offsets at a ratio of at least 1 to 1 in order to obtain 
    an NSR permit.
        3. Pursuant to section 187(c)(1), 42 U.S.C. 7512a(c)(1), all States 
    with serious CO nonattainment areas, in which stationary sources 
    contribute significantly to CO levels (as determined under rules issued 
    by the Administrator; i.e., according to guidance issued in a May 13, 
    1991, memorandum ``Guidance for Determining Significant Stationary 
    Sources for Carbon Monoxide'' from William Laxton, Director, Technical 
    Support Division to Regional Air Division Directors) were required to 
    submit part D NSR programs by November 15, 1992. Such programs must 
    have the following provisions:
        a. Definition of the term ``major stationary source'' that reflects 
    the 50 tpy CO threshold for determination of whether a source is 
    subject to part D requirements as a major source.
        b. Provisions under section 173(a)(1)(A) to ensure that new or 
    modified major stationary sources obtain offsets at a ratio of at least 
    1 to 1 in order to obtain an NSR permit.
        4. All States with nonclassifiable CO nonattainment areas must 
    submit revised part D programs by November 15, 1993.
        Louisiana has established a major source threshold of 100 tpy, and 
    a minimum offset ratio of greater than 1.00 to 1 for moderate CO 
    nonattainment areas. Louisiana has established a major source threshold 
    of 50 tpy, and a minimum offset ratio of greater than 1.00 to 1 for 
    serious nonattainment areas.
        Louisiana has no areas designated as nonattainment for CO at this 
    time.
    
    E. Particulate Matter Less Than 10 Micrometers In Diameter (PM-10)
    
        Pursuant to section 189(a)(2) 42 U.S.C. 7513a(a)(2), all States, 
    with a PM-10 nonattainment area classified as moderate, were required 
    to submit an NSR permit program SIP revision by June 30, 1992, or 18 
    months after the designation of such an area.
    1. Moderate Areas
        PM-10 NSR programs must have the following provisions:
        a. Definition of the term ``major stationary source'' that reflects 
    thresholds in section 302(j) of 100 tpy for PM-10 and, presumptively, 
    100 tpy for each PM-10 precursor for determination of whether a source 
    is subject to part D requirements as a major source.
        b. Provisions under section 173(a)(1)(A) to ensure that new or 
    modified major stationary sources obtain emission offsets at an offset 
    ratio of at least 1 to 1.
        c. Under section 189(e), requirements applicable to major sources 
    of PM-10 are also applicable to major sources of PM-10 precursors, 
    except where the Administrator determines that such sources do not 
    contribute significantly to PM-10 levels which exceed the standards in 
    the area. The EPA generally considers sulfur dioxide, nitrogen oxides, 
    or volatile organic compounds to be PM-10 precursors for NSR purposes 
    in certain areas. Further guidance on making such determinations has 
    been issued at 57 Federal Register 13541 (April 16, 1992) and 57 
    Federal Register 18070 (April 28, 1992).
        d. Provisions to ensure that the significance threshold for a 
    modification to be major, and therefore subject to the section 173 
    permit requirements, is 15 tpy for PM-10 and, presumptively, 15 tpy for 
    each PM-10 precursor.
    2. Serious Areas
        PM-10 NSR programs must have the following provisions:
        a. Definition of the term ``major stationary source'' that reflects 
    the section 189(b)(3) thresholds of 70 tpy for PM-10 and 70 tpy for 
    each PM-10 precursor (in certain cases) for determination of whether a 
    source is subject to part D requirements as a major source.
        b. Provisions under section 173(a)(1)(A) to ensure that new or 
    modified major stationary sources obtain an offset ratio of at least 1 
    to 1.
        c. Under section 189(e), requirements applicable to major sources 
    of PM-10 are also applicable to major sources of PM-10 precursors, 
    except where the Administrator determines that such sources do not 
    contribute significantly to PM-10 levels which exceed the standards in 
    the area.
        d. Provisions to ensure that the significance threshold for a 
    modification to be major, and therefore subject to the section 173 
    permit requirements, is 15 tpy for PM-10 and, presumptively 15 tpy for 
    each PM-10 precursor.
        Louisiana has established major source thresholds, offset ratios, 
    modification significance levels, and PM-10 precursor provisions as 
    follows:
    
    ----------------------------------------------------------------------------------------------------------------
                                Major source                                                                        
     Area classification         threshold         Offset ratio minimum    Significance level   Precursor provisions
    ----------------------------------------------------------------------------------------------------------------
    Moderate.............  100 tpy..............  Greater than 1 to 1..  15 tpy...............  See paragraph below.
    Serious..............  50 tpy...............  Greater than 1 to 1..  15 tpy...............  See paragraph below.
    ----------------------------------------------------------------------------------------------------------------
    
        Since Louisiana has no areas designated as nonattainment for PM-10 
    at this time, the EPA is proposing to approve the PM-10 NSR provisions 
    for the limited purpose of strengthening the SIP and not for satisfying 
    the part D NSR requirements for PM-10. If an area is designated 
    nonattainment for PM-10, then the State would be required to submit 
    provisions for PM-10 precursors unless it has sought and obtained a 
    determination by the EPA under section 189(e). 
    
    [[Page 52356]]
    
    
    F. Sulfur Dioxide (SO2)
    
        States with SO2 nonattainment areas were required to submit 
    NSR implementation plans by May 15, 1992. States with areas that are 
    designated or redesignated as nonattainment after the Amendments have 
    18 months to submit such plans. NSR implementation plans must contain 
    the following provisions with regard to SO2:
        1. Definition of the term ``major stationary source'' that reflects 
    the section 302(j) 100 tpy SO2 threshold for determination of 
    whether a source is subject to part D requirements as a major source.
        2. Provisions under section 173(a)(1)(A) to ensure that new or 
    modified major stationary sources obtain SO2 offsets at a ratio of 
    at least 1 to 1 in order to obtain an NSR permit.
        3. Provisions to ensure that the significance threshold for a 
    modification to be major, and therefore subject to the section 173 
    permit requirements, is 40 tpy of SO2.
        Louisiana has established a major source threshold of 100 tpy, a 
    minimum offset ratio of greater than 1 to 1, and a modification 
    significance level of 40 tpy.
        Louisiana has no areas designated as nonattainment for SO2 at 
    this time.
    
    G. Lead
    
        Generally, the date, by which a plan must be submitted for an area, 
    is triggered by the area's nonattainment designation. For areas 
    designated nonattainment for the primary lead NAAQS in effect at 
    enactment of the 1990 Amendments; under section 171(b), States must 
    submit SIPs which meet the applicable requirements of part D within 18 
    months of the date of enactment of the 1990 Amendments. States with 
    lead nonattainment areas are required to submit NSR implementation 
    plans which must contain the following provisions:
        1. Definition of the term ``major stationary source'' that reflects 
    the section 302(j) 100 tpy lead threshold for determination of whether 
    a source is subject to part D requirements as a major source.
        2. Provisions under section 173(a)(1)(A) to ensure that new or 
    modified major stationary sources of lead obtain lead offsets at a 
    ratio of at least 1 to 1 in order to obtain an NSR permit.
        3. Provisions to ensure that the significance threshold for a 
    modification to be major, and therefore subject to the section 173 
    permit requirements, is 0.6 tpy of lead.
        Louisiana has established a major source threshold of 100 tpy, a 
    minimum offset ratio of greater than 1 to 1, and a modification 
    significance level of 0.6 tpy.
        Louisiana has no areas designated as nonattainment for Lead at this 
    time.
    
    III. Implications of this Action
    
        The EPA is proposing approval of the plan revisions submitted on 
    March 3, 1993, as amended on November 15, 1993, regarding NSR, subject 
    to EPA approval of the NOX exemption request for the Calcasieu 
    Parish ozone nonattainment area. The State of Louisiana has submitted a 
    complete plan to implement the NSR provisions of part D. Assuming 
    approval of the NOX exemption request, each of the program 
    elements mentioned above were properly addressed, with the exception of 
    PM-10 precursor requirements. Since Louisiana has no areas designated 
    as nonattainment for PM-10 at this time, the EPA is proposing to 
    approve the PM-10 NSR provisions for the limited purpose of 
    strengthening the SIP and not for satisfying the part D NSR 
    requirements for PM-10. If an area is designated nonattainment for PM-
    10, then the State would be required to submit provisions for PM-10 
    precursors unless it has sought and obtained a determination by the EPA 
    under section 189(e).
        Those sections submitted to the EPA, not included in the revisions 
    specifically addressed in this proposal, will be the subject of a 
    future rulemaking. If the EPA does not approve the NOX exemption 
    request for Calcasieu Parish, there will not be final approval of the 
    NSR SIP until rule changes requiring NOX offsets in marginal areas 
    are submitted by the State.
        Louisiana LAC 33:III.Chapter 5.section 504 is approvable under the 
    requirements for nonattainment area permitting regulations as outlined 
    in 40 CFR part 51 and in part D. These revisions incorporate 
    requirements of the CAA for the construction and operation of new and 
    modified major stationary sources of air pollutants. However, the EPA 
    is currently in the process of revising its regulations, in accordance 
    with the CAA, and expects to propose an amended 40 CFR 51.165 within 
    the near future. These revisions to 40 CFR 51.165 will reflect the new 
    nonattainment NSR provisions added by the CAA in part D, subparts 1 and 
    2. Once the EPA promulgates final nonattainment NSR rules pursuant to 
    the CAA, the State of Louisiana will have to review LAC 33:III.Chapter 
    5.section 504 against the requirements found in the final promulgated 
    regulations and submit any additionally required revisions to the EPA 
    for approval.
    
    IV. Request for Public Comments
    
        The EPA is requesting comments on all aspects of the requested SIP 
    revision and the EPA's proposed rulemaking action. Comments received by 
    date indicated above will be considered in the development of the EPA's 
    final rule.
    
    V. Executive Order (EO) 12866
    
        This action has been classified as a Table 3 action for signature 
    by the Regional Administrator under the procedures published in the 
    Federal Register on January 19, 1989 (54 FR 2214-2225), as revised by a 
    July 10, 1995, memorandum from Mary Nichols, Assistant Administrator 
    for Air and Radiation. The Office of Management and Budget has exempted 
    this regulatory action from EO 12866 review.
    
    VI. Regulatory Flexibility
    
        Under the Regulatory Flexibility Act, 5 U.S.C. 600 et seq., the EPA 
    must prepare a regulatory flexibility analysis assessing the impact of 
    any proposed or final rule on small entities (5 U.S.C. 603 and 604). 
    Alternatively, the EPA may certify that the rule will not have a 
    significant impact on a substantial number of small entities. Small 
    entities include small businesses, small not-for-profit enterprises, 
    and government entities with jurisdiction over populations of less than 
    50,000.
        SIP approvals, under section 110 and subchapter I, part D, of the 
    CAA, do not create any new requirements, but simply approve 
    requirements that the State is already imposing. Therefore, because the 
    Federal SIP-approval does not impose any new requirements, I certify 
    that it does not have a significant impact on any small entities 
    affected. Moreover, due to the nature of the Federal-State relationship 
    under the CAA, preparation of a regulatory flexibility analysis would 
    constitute Federal inquiry into the economic reasonableness of State 
    action. The CAA forbids the EPA to base its actions concerning SIPs on 
    such grounds (Union Electric Co. v. U.S. E.P.A., 427 U.S. 246, 256-66 
    (1976); 42 U.S.C. 7410(a)(2)).
        Under section 307(b)(1) of the CAA, petitions for judicial review 
    of this action must be filed in the United States Court of Appeals, for 
    the appropriate circuit, by December 5, 1995. Filing a petition for 
    reconsideration by the Administrator of this final rule does not affect 
    the finality of this rule for the purposes of judicial review, nor does 
    it extend the time within which a petition for judicial review may be 
    filed, and 
    
    [[Page 52357]]
    shall not postpone the effectiveness of such rule or action. This 
    action may not be challenged later in proceedings to enforce its 
    requirements. See section 307(b)(2).
    
    VII. Unfunded Mandates
    
        Under section 202 of the Unfunded Mandates Reform Act of 1995 
    (``Unfunded Mandates Act''), signed into law on March 22, 1995, the EPA 
    must prepare a budgetary impact statement to accompany any proposed or 
    final rule that includes a Federal mandate that may result in estimated 
    costs to State, local, or tribal governments in the aggregate; or to 
    the private sector, of $100 million or more. Under section 205, the EPA 
    must select the most cost-effective and least burdensome alternative 
    that achieves the objectives of the rule and is consistent with 
    statutory requirements. Section 203 requires the EPA to establish a 
    plan for informing and advising any small governments that may be 
    significantly or uniquely impacted by the rule.
        The EPA has determined that this proposed action does not include a 
    Federal mandate that may result in estimated costs of $100 million or 
    more to either State, local, or tribal governments in the aggregate, or 
    to the private sector. This Federal action approves pre-existing 
    requirements under State or local law, and imposes no new Federal 
    requirements. Accordingly, no additional costs to State, local, or 
    tribal governments, or to the private sector, result from this action.
    
    List of Subjects in 40 CFR Part 52
    
        Environmental protection, Air pollution control, Carbon monoxide, 
    Hydrocarbons, Incorporation by reference, Intergovernmental relations, 
    Lead, New source review, Nitrogen dioxide, Ozone, Particulate matter, 
    Reporting and recordkeeping requirements, Sulfur dioxide, Volatile 
    organic compounds.
    
        Authority: 42 U.S.C. 7401-7671q.
    
        Dated: September 29, 1995.
    Samuel Coleman,
    Acting Regional Administrator (6RA).
    [FR Doc. 95-24940 Filed 10-5-95; 8:45 am]
    BILLING CODE 6560-50-P
    
    

Document Information

Published:
10/06/1995
Department:
Environmental Protection Agency
Entry Type:
Proposed Rule
Action:
Proposed rule.
Document Number:
95-24940
Dates:
Comments on this proposed action must be received in writing on or before November 6, 1995.
Pages:
52352-52357 (6 pages)
Docket Numbers:
LA-14-1-5941, FRL-5310-1
PDF File:
95-24940.pdf
CFR: (1)
40 CFR 52