97-11994. Designation of Areas for Air Quality Planning Purposes; Minnesota  

  • [Federal Register Volume 62, Number 92 (Tuesday, May 13, 1997)]
    [Rules and Regulations]
    [Pages 26230-26235]
    From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
    [FR Doc No: 97-11994]
    
    
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    ENVIRONMENTAL PROTECTION AGENCY
    
    40 CFR Part 81
    
    [MN41-01-7266a; FRL-5820-8]
    
    
    Designation of Areas for Air Quality Planning Purposes; Minnesota
    
    AGENCY: Environmental Protection Agency.
    
    ACTION: Direct final rule.
    
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    SUMMARY: In this action, the Environmental Protection Agency (EPA) is 
    approving the St. Paul Park Area redesignation request submitted by the 
    State of Minnesota on October 31, 1995. Minnesota requested that 
    portions of Dakota and Washington Counties (the areas surrounding the 
    Ashland Petroleum Company) be redesignated to attainment for the 
    National Ambient Air Quality Standard (NAAQS) for sulfur dioxide (SO2). 
    All future references to the areas surrounding the Ashland Petroleum 
    Company will be made using St. Paul Park. Subsequent to this approval, 
    Dakota and Washington Counties are each designated attainment in their 
    entirety.
    
    DATES: This ``Direct final''is effective July 14, 1997 unless EPA 
    receives adverse or critical comments by June 13, 1997. If the 
    effective date is delayed, timely notice will be published in the 
    Federal Register.
    
    ADDRESSES: Copies of the revision request are available for inspection 
    at the following address: Environmental Protection Agency, Region 5, 
    Air and Radiation Division, 77 West Jackson Boulevard, Chicago, 
    Illinois 60604. (It is recommended that you telephone Todd Nettesheim 
    at (312) 353-9153 before visiting the Region 5 Office.)
        Written comments should be addressed to: Carlton Nash, Chief, 
    Regulation Development Section, Air Programs Branch (AR-18J), United 
    States Environmental Protection Agency, 77 West Jackson Boulevard, 
    Chicago, Illinois 60604.
    
    FOR FURTHER INFORMATION CONTACT: Todd Nettesheim, Air Programs Branch, 
    Regulation Development Section (AR-18J), United States Environmental 
    Protection Agency, Region 5, 77 W. Jackson Boulevard, Chicago, Illinois 
    60604, (312) 353-9153.
    
    SUPPLEMENTARY INFORMATION:
    
    I. Background
    
        The NAAQS for SO2 consist of two standards: a primary standard for 
    the protection of public health and a secondary standard for the 
    protection of public welfare. The primary SO2 standard consists of a 
    24-hour maximum of 0.14 particles per million (ppm) and an annual 
    arithmetic mean ambient SO2 concentration of 0.030 ppm. The secondary 
    standard consists of a 3-hour maximum ambient SO2 concentration of 0.5 
    ppm. (40 CFR 50.2-50.5)
        Monitored violations of the primary SO2 NAAQS from 1975 through 
    1977 led the Minnesota Pollution Control Agency (MPCA) to recommend EPA 
    to designate Air Quality Control Region (AQCR) 131 as nonattainment for 
    the SO2 NAAQS. The AQCR 131 includes Anoka, Carver, Dakota, Hennepin, 
    Ramsey, Scott, and Washington Counties in the State of Minnesota. On 
    March 3, 1978, EPA published the designation of AQCR 131 as a primary 
    nonattainment area for SO2 based on these initial exceedences (43 FR 
    8962).
    
    [[Page 26231]]
    
    During 1980, the MPCA submitted an SO2 State Implementation Plan (SIP) 
    revision which the EPA approved in 1981. In 1983, the MPCA requested 
    redesignation to attainment for all of AQCR 131 except for an area 
    surrounding the emission sources in the Pine Bend Area of Dakota 
    County. The redesignation request was made this way because all of AQCR 
    131, except the Pine Bend Area, demonstrated monitored attainment of 
    the SO2 NAAQS for 2 years following EPA approval of the AQCR 131 SO2 
    SIP. EPA delayed action while they reassessed their nonattainment 
    policy.
        During 1986 and 1987, the MPCA submitted SO2 SIP revisions for the 
    St. Paul Park Area, the Pine Bend Area, and the rest of AQCR 131. From 
    1988 through early 1990, the MPCA and EPA focused on resolving issues 
    in the Pine Bend Area. EPA suspended actions on SO2 SIPs during 1990 
    pending the passage of the Clean Air Act (Act) Amendments of 1990.
        On December 22, 1992, Minnesota submitted an SO2 SIP revision for 
    the St. Paul Park Area. EPA required changes to the SIP before it could 
    be approved. Minnesota submitted the required changes on September 30, 
    1994. EPA approved the St. Paul Park SO2 SIP on January 18, 1995 (60 FR 
    3544).
    
    II. Evaluation Criteria
    
        Title I, section 107(d)(3)(D) of the Act, as amended in 1990, 
    authorizes the Governor of a State to request the redesignation of any 
    area within the State from nonattainment to attainment. The criteria 
    used to review redesignation requests are derived from the Act. An area 
    can be redesignated to attainment if all of the following conditions 
    are met:
        (1) EPA has determined that the NAAQS have been attained;
        (2) The applicable implementation plan has been fully approved by 
    EPA under section 110(k) of the Act;
        (3) EPA has determined that the improvement in air quality is due 
    to permanent and enforceable reductions;
        (4) The State has met all applicable requirements for the area 
    under section 110 and Part D of the Act; and
        (5) EPA has fully approved a maintenance plan, including a 
    contingency plan, for the area under section 175A of the Act.
    
    III. Summary of State Submittal
    
        The following paragraphs discuss how the State's redesignation 
    request for the St. Paul Park Area address the Act's requirements.
    
    A. Demonstrated Attainment of the NAAQS
    
        As explained in the April 21, 1983, memorandum ``Section 107 
    Designation Policy Summary'' from the Director of the Office of Air 
    Quality Planning and Standards (OAQPS), eight consecutive quarters of 
    data showing SO2 NAAQS attainment are required for redesignation. A 
    violation of the SO2 NAAQS occurs when more than one exceedence of the 
    SO2 NAAQS is recorded in any year (40 CFR 50.4). Minnesota's October 
    31, 1995, submittal includes ambient monitoring data showing that the 
    St. Paul Park Area has met the SO2 NAAQS from 1989 to 1994, which is 
    more than enough time of clean air to promulgate a redesignation to 
    attainment. Additionally, preliminary monitoring data for the period of 
    1995 to 1996 indicate that the SO2 NAAQS are still being met. The 
    highest monitored SO2 values during this time have been well below the 
    SO2 standards. The initial exceedences of the SO2 NAAQS in the St. Paul 
    Park Area occurred between 1976 and 1978; while, the only other 
    possible exceedences in this area occurred in 1987 and 1988. In both 
    1987 and 1988, the 75 percent sampling criteria for SO2 was not met at 
    the monitor located by the City Garage near Seventh Avenue and Fifth 
    Street. A monitor in the St. Paul Park Area was then established across 
    the street at 649 Fifth Street on February 28, 1989. There have been no 
    exceedences of the SO2 NAAQS at this monitor, and no additional SO2 
    exceedences have been recorded in the Aerometric Information and 
    Retrieval System database through June 1996.
        Dispersion modeling is also required to demonstrate attainment of 
    the SO2 NAAQS. A September 4, 1992, EPA policy memorandum titled 
    ``Procedures for Processing Requests to Redesignate Areas to 
    Attainment'' (the Calcagni memo) explains that additional dispersion 
    modeling is not required in support of an SO2 redesignation request if 
    an adequate modeled attainment demonstration was submitted and approved 
    as part of the fully implemented SIP, and no indication of an existing 
    air quality deficiency exists. This required modeling data was 
    submitted to EPA with SIP revisions on December 22, 1992. The modeled 
    demonstration evaluates the SO2 source's impact and provides the areas 
    of expected high concentration of SO2 based on current meteorological 
    conditions at the Ashland Petroleum Company. The modeling data 
    demonstrate modeled attainment of the SO2 NAAQS in the St. Paul Park 
    Area with all control measures in operation.
    
    B. Fully Approved SIP
    
        The SIP for the area must be fully approved under section 110(k) of 
    the Act and must satisfy all requirements that apply to the area. EPA's 
    guidance for implementing section 110 of the Act is discussed in the 
    General Preamble to Title I (57 FR 13498, April 16, 1992). The SO2 SIP 
    for the St. Paul Park Area met the requirements of section 110 of the 
    Act and was approved by EPA on January 18, 1995 (60 FR 3544).
    
    C. Permanent and Enforceable Reductions in Emissions
    
        The St. Paul Park Area attainment of the SO2 standards can be 
    attributed to the permanent and enforceable control measures 
    implemented at the Ashland Petroleum Company. SO2 emission limits and 
    operating restrictions are imposed on the Ashland Petroleum Company by 
    means of a non-expiring Administrative Order. This Order was submitted 
    to EPA in the 1992 SIP submittal and was approved on January 18, 1995, 
    which rendered the Order enforceable. The regulations are permanent and 
    any future revisions to the rules must be submitted to and approved by 
    EPA.
        The Calcagni memo says that States should estimate the percent 
    reductions from the year that determined the design value in SO2 
    emissions. The original SO2 violations that resulted in AQCR 131 (which 
    includes the St. Paul Park Area) being designated nonattainment 
    occurred between 1975 and 1977. However, it would be unrealistic to go 
    back approximately 20 years to compare SO2 reductions. In addition, 
    reliable data from the mid-1970's is not readily available. Therefore, 
    improvements in air quality were measured based on reductions in SO2 
    emissions since the June 30, 1987, SIP submittal for the St. Paul Park 
    Area.
        The June 30, 1987, SIP submittal included a permit for the Ashland 
    Petroleum Company, while the 1992 SIP submittal included the 
    Administrative Order. The following table illustrates the reductions 
    made as a result of the 1992 SIP submittal.
    
    [[Page 26232]]
    
    
    
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                                                                     Administrative order                           
              Type of equipment                 Permit limit                limit             Percent SO2 reduction 
    ----------------------------------------------------------------------------------------------------------------
    SRU/SCOT............................  500 lb/hr..............  15 lb/hr...............  97%.                    
    FCC.................................  800 lb/hr..............  793.65 lb/hr...........  Negligible.             
    All oil-fired sources...............  1.6 lb/MMBtu...........  0.9 lb/MMBtu...........  44%.                    
    All gas-fired sources...............  0.0234 lb/MMBtu........  Same...................  None.                   
    ----------------------------------------------------------------------------------------------------------------
    
        SO2 emissions from the Ashland Petroleum Company were modeled with 
    all these post-Administrative Order control measures in place. The 
    resulting data showed modeled attainment of the SO2 NAAQS. The 
    Administrative Order has been approved at the State and Federal level, 
    and is non-expiring. Consequently, the reductions in emissions in the 
    St. Paul Park Area are permanent and enforceable.
    
    D. Fully Approved Maintenance Plan
    
        Under section 107(d)(3)(E) and section 175A of the Act, the State 
    must submit a SIP revision to provide for a maintenance plan in order 
    for an area to be redesignated to attainment. Section 175A of the Act 
    sets forth the maintenance plan requirements for areas seeking 
    redesignation from nonattainment to attainment. The maintenance plan 
    must demonstrate continued attainment of the applicable NAAQS for at 
    least 10 years after the area is redesignated as well as contain such 
    additional measures, if any, as may be necessary to ensure maintenance. 
    Eight years after the redesignation date, the State is required to 
    revise its SIP to provide for maintenance of the standard in the 
    affected area for an additional ten-year period (section 175A(b) of the 
    Act).
        In addition, the maintenance plan should contain such contingency 
    measures as the Administrator deems necessary to ensure prompt 
    correction of any violation of the NAAQS (section 175A(d) of the Act). 
    The Act provides that, at a minimum, the contingency measures must 
    include a requirement that the State will implement all measures 
    contained in the nonattainment SIP prior to redesignation. Failure to 
    maintain the NAAQS and triggering of the contingency plan will not 
    necessitate a revision of the SIP unless required by the Administrator, 
    as stated in section 175A(d) of the Act.
        EPA redesignation policy stated in the September 4, 1992, 
    memorandum lists the five core provisions that a plan must contain in 
    order to ensure maintenance of the standards: (1) an attainment 
    inventory, (2) a maintenance demonstration, (3) a monitoring network, 
    (4) verification of continued attainment, and (5) a contingency plan. 
    The following paragraphs will discuss Minnesota's submittal with regard 
    to EPA's requirements to ensure maintenance of the standards.
    1. Attainment Inventory
        The State is required to develop an attainment inventory to 
    identify the level of emissions in the area at the time of 
    redesignation. However, the attainment inventory associated with this 
    redesignation will be the actual inventory at the time the St. Paul 
    Park Area attained the standard because Minnesota has made an adequate 
    demonstration that air quality has improved as a result of their 
    December 22, 1992, SIP submittal. Minnesota's air dispersion modeling 
    included in the 1992 SIP submittal contains the emission inventory of 
    SO2 sources in the St. Paul Park Area. The modeling methodology and 
    predicted SO2 concentrations based on the SO2 emissions inventory in 
    the 1992 SIP submittal are summarized in the following sections.
        The modeling results provided below demonstrate that Minnesota's 
    attainment inventory included in their 1992 SIP submittal is sufficient 
    to meet the SO2 standards in the future.
    2. Maintenance Demonstration
        The State is required to demonstrate maintenance of the NAAQS by 
    either showing that future emissions of a pollutant or its precursors 
    will not exceed the level of the attainment inventory, or by modeling 
    to show that the future mix of sources and emission rates will not 
    cause a violation of the NAAQS.
        In the 1992 St. Paul Park SIP submittal, a modeled attainment 
    demonstration was included to show that the reductions in emissions as 
    a result of this SIP would be sufficient to attain the applicable 
    NAAQS. The St. Paul Park Area's related maintenance demonstration is 
    based on the same modeling that was included in that 1992 SIP 
    submittal. A summary of the air quality model used by Minnesota in the 
    1992 SIP submittal and the resulting ambient SO2 concentrations 
    expected from the application of various control strategies are 
    contained below. Details of the modeled demonstration are contained in 
    the proposed action on the St. Paul Park SIP (59 FR 45653).
        Dispersion modeling for the 3-hour, 24-hour, and annual standards 
    was conducted according to modeling guidance in effect at the time. The 
    Industrial Source Complex Short-Term (ISCST) model was run using the 
    regulatory option switch. SO2 impacts were calculated over a 4 km by 4 
    km area with 100 meter resolution (i.e., 1,681 receptors). Other (non-
    St. Paul Park) larger Twin Cities SO2 sources were modeled explicitly 
    while other (non-St. Paul Park) smaller Twin Cities SO2 sources 
    including area sources were accounted for using a background SO2 
    concentration of 8 /m3 (0.003 ppm). This simple terrain SO2 
    modeling indicates maximum second-highest 3-hour and 24-hour SO2 
    concentrations of 1186.26 and 332.16 /m3 (0.45 and 0.127 ppm), 
    and maximum annual SO2 concentrations of 79.6 /m3 (0.030 ppm). 
    All three of these modeled maximum SO2 concentrations fall at or below 
    the SO2 NAAQS.
        Complex terrain dispersion modeling for 24-hour averaging time was 
    performed using the COMPLEX1 model in VALLEY mode modified for urban 
    conditions (i.e., stability E and urban wind profile coefficients). 
    This complex terrain SO2 modeling indicates maximum second-highest 24-
    hour SO2 concentrations of 195 g/m3 (0.074 ppm). Because the 
    COMPLEX1/VALLEY model 24-hour concentration was less than ISCST model 
    result, the simple terrain (ISCST model) results were used for 
    establishing the SO2 emission limits in the Ashland Petroleum Company 
    Administrative Order.
        In either the modeled approach or the attainment inventory 
    approach, the maintenance demonstration requires the State to project 
    emissions for the 10-year period following redesignation. This 
    requirement is used for the purpose of showing that emissions will not 
    increase over the attainment inventory. The St. Paul Park Area's 
    emissions inventory is contained in the air dispersion modeling for 
    Minnesota's 1992 SIP revision submittal. According to this inventory, 
    there is approximately a 10 percent growth margin for the 3-hour and 
    24-hour standards and approximately a 1 percent growth margin for the 
    annual standard.
    
    [[Page 26233]]
    
    3. Monitoring Network
        In accordance with 40 CFR Part 58, after an area has been 
    redesignated to attainment, the State must continue to operate an 
    appropriate air quality network to verify the attainment status of the 
    area. The current SO2 monitoring network in the St. Paul Park Area will 
    remain operating in accordance with this regulation.
    4. Verification of Continued Attainment
        Each State should ensure that it has the legal authority to 
    implement and enforce all measures necessary to attain and maintain the 
    NAAQS. Descriptions of the MPCA's authority to enforce the orders were 
    included in previous SIP submittal as letters from the Minnesota 
    Attorney General's office.
        Regardless of whether the maintenance demonstration is based on a 
    showing that future emission inventories will not exceed the attainment 
    inventory or on modeling, the State submittal should indicate how the 
    State will track the progress of the maintenance plan. This is 
    necessary because emission projections made for the maintenance 
    demonstration depend on assumptions of point and area source growth.
        Minnesota plans to use their permitting program to track the 
    progress of the maintenance plan. The permitting program will be able 
    to monitor the growth in the St. Paul Park Area by keeping track of new 
    permit applications, keeping track of requests for permit amendments, 
    and observing the annual emission inventories that all facilities with 
    permits must submit to the MPCA. In order to thoroughly monitor the 
    growth in the area with their permitting program, Minnesota has lowered 
    their potential to emit threshold for SO2 sources needing a permit to 
    50 tons per year (the Federal limit is 100 tons per year).
        The frequency of these monitoring activities will depend on the 
    timing of requests for new permits and permit amendments. Facilities 
    operating under permits must submit their emission inventories in the 
    spring of every year.
        Furthermore, future emissions are not predicted to increase for 
    several qualitative reasons. First, the Clean Fuel Fleets Project 
    initiated by Minnesota's refineries is producing diesel fuel with 0.05 
    percent sulfur instead of the standard 0.5 percent sulfur. This will 
    decrease SO2 emissions for companies using this cleaner fuel. Second, 
    Minnesota has a ``registration permit'' rule that encourages facilities 
    to reduce emissions, thereby avoiding the need for a Title V permit. 
    Third, Minnesota intends to require dispersion modeling of all major 
    (Part 70) SO2 sources with a potential to emit at least 100 tons per 
    year. The final reason relates to the possible overestimate of 
    predicted SO2 concentrations due to the use of conservative stack base 
    elevations for many of the smaller SO2 emissions sources (i.e., the 
    Mississippi River elevation which is the lowest point in the Twin 
    Cities area).
        The incentives to reduce SO2 emissions, Minnesota's permitting 
    program, requirements for dispersion modeling, and the overestimates of 
    predicted SO2 concentrations jointly illustrate that SO2 emissions are 
    not likely to increase in the St. Paul Park Area. These factors will 
    also provide for continued attainment of the SO2 NAAQS in the St. Paul 
    Park Area.
    5. Contingency Plan
        Section 175A of the Act requires that a maintenance plan include 
    contingency provisions, as necessary, to promptly correct any violation 
    of the NAAQS that occurs after redesignation of that area. These 
    contingency measures are distinguished from those generally required 
    for nonattainment areas under section 172(c)(9). For the purposes of 
    section 175A, a State is not required to have fully adopted contingency 
    measures that will take effect without further action by the State in 
    order for the maintenance plan to be approved. However, the contingency 
    plan is considered to be an enforceable part of the SIP and should 
    ensure that the contingency measures are adopted expediently once they 
    are triggered. The plan should clearly identify the measures to be 
    adopted, a schedule and procedure for adoption and implementation, and 
    a specific time limit for action by the State. As a necessary part of 
    the plan, the State should also identify specific indicators, or 
    triggers, which will be used to determine when the contingency measures 
    need to be implemented.
        The General Preamble for the Implementation of Title I of the Act 
    published in the Federal Register on April 16, 1992 (57 FR 13498), 
    states that SO2 SIPs present ``special considerations'' when referring 
    to contingency plans. As stated in the Preamble, the modeling of SO2 
    sources is considered reliable for predicting the amount of SO2 emitted 
    from sources in the nonattainment area. There is not such confidence 
    with other pollutants. Also, the Preamble states that control measures 
    for SO2 emissions are ``well understood and far less prone to 
    uncertainty.'' Therefore, it would be unlikely for an SO2 area to 
    implement emission controls but fail to attain the NAAQS. For the 
    reasons stated above, EPA concluded that contingency measures in SO2 
    SIPs where a comprehensive program exists in the State ``to identify 
    sources of violations of the SO2 NAAQS and to undertake an aggressive 
    follow-up for compliance and enforcement'' need not submit contingency 
    plans with their SO2 SIPs.
        MPCA does have comprehensive enforcement and compliance programs 
    that meet the above stated requirements.
        The attainment inventory, maintenance demonstration, monitoring 
    network, verification of continued attainment, and contingency plan 
    submitted for the St. Paul Park Area constitute sound maintenance plans 
    and satisfy EPA's requirements.
    
    E. Part D and Other Section 110 Requirements
    
        EPA approved the SO2 SIP revision for the St. Paul Park Area on 
    January 18, 1995, after having concluded that the plan satisfied the 
    requirements of Part D and section 110 of the Act. Once the SO2 
    nonattainment area is redesignated to attainment, the Part D new source 
    review program requirements will not apply. However, the sources in the 
    area will now be required to comply with the prevention of significant 
    deterioration (PSD) program. Minnesota has been delegated the Federal 
    PSD program as published in the Code of Federal Regulations at 40 CFR 
    52.1234 (1994).
    1. Section 176 Conformity Requirements
        Section 176 of the Act requires States to revise their SIPs to 
    establish criteria and procedures to ensure that individual Federal 
    actions will conform to the overall air quality planning goals in the 
    applicable State SIP. Section 176 further provides that the State's 
    conformity revisions must be consistent with the Federal conformity 
    regulations promulgated by EPA under the Act. The requirement used by 
    Federal agencies to determine conformity is defined in 40 CFR part 93 
    subpart B (``general conformity'').
        EPA believes it is reasonable to interpret the conformity 
    requirements as not being applicable requirements for purposes of 
    evaluating redesignation requests under section 107(d) of the Act. The 
    rationale for this is based on a combination of two factors. First, the 
    requirement to submit SIP revisions to comply with the conformity 
    provisions of the Act continues to apply to areas after redesignation 
    to attainment, since such areas would be subject to a section 175A 
    maintenance plan. Second, EPA's Federal conformity rules require the 
    performance of conformity analyses in
    
    [[Page 26234]]
    
    the absence of federally approved State rules. Therefore, because areas 
    are subject to the conformity requirements regardless of whether they 
    are redesignated to attainment, and must implement conformity under 
    Federal rules if State rules are not yet approved, EPA believes it is 
    reasonable to view these requirements as not being applicable 
    requirements for purposes of evaluation of a redesignation request. 
    Consequently, the SO2 redesignation requests for the St. Paul Park Area 
    may be approved notwithstanding the lack of fully approved general 
    conformity rules. Refer to EPA's action in the Tampa, Florida, ozone 
    redesignation finalized on December 7, 1995 (60 FR 627428).
    
    IV. Final Rulemaking Action
    
        EPA is approving the St. Paul Park Area redesignation request from 
    the State of Minnesota submitted on October 31, 1995. Therefore, EPA is 
    redesignating the St. Paul Park Area in Washington and Dakota Counties 
    to attainment. Consequently, Washington and Dakota Counties in their 
    entireties will be designated as attainment for the SO2 NAAQS. EPA has 
    completed an analysis of this SIP revision request based on a review of 
    the materials presented, and has determined that they met the 
    requirements of the Act.
        EPA is publishing this action without prior proposal because the 
    EPA views this as a noncontroversial issue and anticipates no adverse 
    comments. However, in a separate document in this Federal Register 
    publication, EPA is proposing to approve the redesignation request 
    should adverse or critical comments be filed. This action will be 
    effective July 14, 1997 unless, by June 12, 1997, adverse or critical 
    comments are received.
        If EPA receives such comments, the actions affecting the St. Paul 
    Park Area will be withdrawn before the effective date by publishing a 
    subsequent document. All public comments received will be addressed in 
    a subsequent final rule based on applicable parts of this action 
    serving as a proposed rule. EPA will not institute a second comment 
    period on this action. Any parties interested in commenting on this 
    action should do so at this time. If no such comments are received, the 
    public is advised that this action will be effective July 14, 1997.
        Nothing in this action should be construed as permitting or 
    allowing or establishing a precedent for any future request for 
    revision to any SIP. Each request for revision to the SIP shall be 
    considered separately in light of specific technical, economic, and 
    environmental factors and in relation to relevant statutory and 
    regulatory requirements.
    
    V. Administrative Requirements
    
    A. Executive Order 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 D. Nichols, Assistant Administrator 
    for Air and Radiation. The Office of Management and Budget has exempted 
    this regulatory action from Executive Order 12866 review.
    
    B. Regulatory Flexibility Act
    
        Under the Regulatory Flexibility Act, 5 U.S.C. 600 et seq., 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, 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 Act 
    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, the Administrator 
    certifies 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 Act, preparation of a flexibility analysis would 
    constitute Federal inquiry into the economic reasonableness of state 
    action. The Act forbids EPA to base its actions concerning SIPs on such 
    grounds. Union Electric Co. v. EPA, 427 U.S. 246, 255-66 (1976); 42 
    U.S.C. 7410(a)(2).
        Redesignation of an area to attainment under section 107(d)(3)(E) 
    of the Act does not impose any new requirements on small entities. 
    Redesignation is an action that affects the status of a geographical 
    area and does not impose any regulatory requirements on sources. The 
    Administrator certifies that the approval of a redesignation request 
    will not affect a substantial number of small entities.
    
    C. Unfunded Mandates
    
        Under section 202 of the Unfunded Mandates Reform Act of 1995, 
    signed into law on March 22, 1995, EPA must undertake various actions 
    in association with 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. 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 the private sector, result from this action.
    
    D. Submission to Congress and the General Accounting Office
    
        Under 5 U.S.C. 801(a)(1)(A) as added by the Small Business 
    Regulatory Enforcement Fairness Act of 1996, EPA submitted a report 
    containing this rule and other required information to the U.S. Senate, 
    the U.S. House of Representatives and the Controller General of the 
    General Accounting Office prior to publication of the rule in the 
    Federal Register. This rule is not a ``major rule'' as defined by 5 
    U.S.C. 804(2).
    
    E. Petitions for Judicial Review
    
        Under section 307(b)(1) of the Act, petitions for judicial review 
    of this action must be filed in the United States Court of Appeals for 
    the appropriate circuit by July 14, 1997. 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 shall not postpone the effectiveness of such rule or action. 
    This action may not be challenged later in proceedings to enforce its 
    requirements.
    
    Executive Order 12866
    
        The Office of Management and Budget has exempted this rule from the 
    requirements of Section 6 of Executive Order 12866.
    
    List of Subjects in 40 CFR Part 81
    
        Environmental protection, Air pollution control.
    
        Dated: April 23, 1997.
    Valdas V. Adamkus,
    Regional Administrator.
    
        For the reasons stated in the preamble, part 81, chapter I, title 
    40 of the Code of Federal Regulations is amended as follows:
    
    PART 81--[AMENDED]
    
        1. The authority citation for part 81 continues to read as follows:
    
        Authority: 42 U.S.C. 7401-7671q.
    
    
    [[Page 26235]]
    
    
        2. Section 81.324 is amended by revising the entry for AQCR 131 in 
    the table entitled ``Minnesota-SO2'' to read as follows:
    
    
    Sec. 81.324  Minnesota.
    
    * * * * *
    
                                                      Minnesota-SO2                                                 
    ----------------------------------------------------------------------------------------------------------------
                                                                   Does not     Does not                            
                                                                     meet         meet      Cannot be    Better than
                          Designated area                          primary     secondary    classified    national  
                                                                  standards    standards                  standards 
    ----------------------------------------------------------------------------------------------------------------
    AQCR 131:                                                                                                       
        Anoka County...........................................  ...........  ...........  ...........            X 
        Carver County..........................................  ...........  ...........  ...........            X 
        Dakota County..........................................  ...........  ...........  ...........            X 
        Hennepin County........................................  ...........  ...........  ...........            X 
        Ramsey County..........................................  ...........  ...........  ...........            X 
        Scott County...........................................  ...........  ...........  ...........            X 
        Washington County......................................  ...........  ...........  ...........            X 
                                                                                                                    
    *                  *                  *                  *                  *                  *                
                                                            *                                                       
    ----------------------------------------------------------------------------------------------------------------
    
    * * * * *
    [FR Doc. 97-11994 Filed 5-12-97; 8:45 am]
    BILLING CODE 6560-50-P
    
    
    

Document Information

Effective Date:
7/14/1997
Published:
05/13/1997
Department:
Environmental Protection Agency
Entry Type:
Rule
Action:
Direct final rule.
Document Number:
97-11994
Dates:
This ``Direct final''is effective July 14, 1997 unless EPA receives adverse or critical comments by June 13, 1997. If the effective date is delayed, timely notice will be published in the Federal Register.
Pages:
26230-26235 (6 pages)
Docket Numbers:
MN41-01-7266a, FRL-5820-8
PDF File:
97-11994.pdf
CFR: (1)
40 CFR 81.324