97-11908. Approval and Promulgation of State Implementation Plan; IN  

  • [Federal Register Volume 62, Number 88 (Wednesday, May 7, 1997)]
    [Rules and Regulations]
    [Pages 24815-24824]
    From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
    [FR Doc No: 97-11908]
    
    
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    ENVIRONMENTAL PROTECTION AGENCY
    
    40 CFR Part 52
    
    [IN54-1a; FRL-5819-3]
    
    
    Approval and Promulgation of State Implementation Plan; IN
    
    AGENCY: Environmental Protection Agency (EPA).
    
    ACTION: Direct final rule.
    
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    SUMMARY: In this action, EPA is approving the following as revisions to 
    the Indiana State Implementation (SIP) plan: A Rate-Of-Progress (ROP) 
    plan to reduce volatile organic compound (VOC) emissions in Clark and 
    Floyd Counties by 15 percent (%) by November 15, 1996; 1996 corrections 
    to Clark and Floyd Counties' 1990 base year emission inventory (to 
    establish an accurate base line for the 15% ROP plan); construction 
    permits requiring VOC emission control at Rhodes, Incorporated (Rhodes) 
    in Charlestown, Clark County; and a ridesharing program affecting 
    commuters in Clark and Floyd Counties. The plan and control measures 
    help protect the public's health and welfare by reducing the emissions 
    of VOC that contribute to the formation of ground-level ozone, commonly 
    known as urban smog. High concentrations of ground-level ozone can 
    aggravate asthma, cause inflammation of lung tissue, decrease lung 
    function, and impair the body's defenses against respiratory infection. 
    The 15% ROP plan's control measures are expected to reduce VOC 
    emissions in Clark and Floyd Counties by 17,215 pounds (lbs) per day. 
    In this action, EPA is approving the above requested SIP revisions 
    through a ``direct final'' rulemaking; the rationale for this approval 
    is set forth below.
    
    DATES: The ``direct final'' rule, is effective July 7, 1997, unless EPA 
    receives adverse or critical comments by June 6, 1997. If the effective 
    date is delayed, timely notice will be published in the Federal 
    Register.
    
    ADDRESSES: Comments may be mailed to: J. Elmer Bortzer, Chief, 
    Regulation Development Section, United States Environmental Protection 
    Agency, Region 5, Air and Radiation Division, Air Programs Branch (AR-
    18J), 77 West Jackson Boulevard, Chicago, Illinois, 60604.
        Copies of the documents relevant to this action are available at 
    the above address for public inspection during normal business hours.
    
    FOR FURTHER INFORMATION CONTACT: Mark J. Palermo, Environmental 
    Protection Specialist, at (312) 886-6082.
    
    SUPPLEMENTARY INFORMATION:
    
    I. Background on 15% ROP Requirements
    
        On November 15, 1990, Congress enacted amendments to the 1977 Clean 
    Air Act (Act); Public Law 101-549, 104 Stat. 2399, codified at 42 
    U.S.C. 7401-7671q. Section 182(b)(1) requires States with ozone 
    nonattainment areas classified as moderate and above to submit a SIP 
    revision known as a ``15% ROP plan.'' This plan must reflect an actual 
    reduction in typical ozone season weekday VOC emissions of at least 15% 
    in the area during the first 6 years after enactment (i.e., by November 
    15, 1996). The emission reductions needed to achieve the 15% 
    requirement must be calculated using a 1990 anthropogenic VOC emissions 
    inventory as a baseline, minus emission reductions occurring by 1996 
    from the: (1) Federal Motor Vehicle Control Program (FMVCP) measures 
    for the control of motor vehicle exhaust or evaporative emissions 
    promulgated before January 1, 1990; and (2) gasoline Reid Vapor 
    Pressure (RVP) regulations promulgated by November 15, 1990 (see 55 FR 
    23666, June 11, 1990). In addition, the plan must account for net 
    growth in emissions within the nonattainment area between 1990 and 
    1996.
        In Indiana, two ozone nonattainment areas are required to be 
    covered by a 15% ROP plan: the Lake and Porter Counties portion of the 
    Chicago severe ozone nonattainment area, and the Clark and Floyd 
    Counties portion of the Louisville moderate ozone nonattainment area. 
    Today's rulemaking action addresses only the plan for Clark and Floyd 
    Counties; the Lake and Porter Counties 15% ROP plan has been addressed 
    in an April 3, 1997, rulemaking action (see 62 FR 15844).
    
    II. Indiana's 15% ROP Plan Submittal
    
        The Act requires States to observe certain procedural requirements 
    in
    
    [[Page 24816]]
    
    developing SIPs and SIP revisions for submission to EPA. Section 
    110(a)(2) and section 110(l) of the Act require that each SIP revision 
    meet reasonable notice and public hearing requirements. The State of 
    Indiana submitted a portion of the Clark and Floyd Counties 15% ROP 
    plan SIP revision on December 20, 1993. The SIP revision was reviewed 
    by EPA to determine completeness shortly after submittal, in accordance 
    with the completeness criteria set out at 40 CFR Part 51, Appendix V 
    (1991), as amended by 57 FR 42216 (August 26, 1991). Because Indiana 
    had not included fully adopted rules for all the plan's control 
    measures, nor held a public hearing on the plan, the submittal was 
    deemed incomplete. Subsequently, Indiana held a public hearing on the 
    plan on March 31, 1994, in New Albany, Indiana. A hearing transcript, a 
    summary of comments from that hearing, and the Indiana Department of 
    Environmental Management's (IDEM) response to comments were submitted 
    on July 5, 1994. IDEM sent a supplemental submittal on July 12, 1995, 
    which included fully adopted rules for the Clark and Floyd Counties 15% 
    ROP plan. In a July 17, 1995, letter to Indiana, the State was informed 
    that the SIP submittal was deemed complete.
        Indiana submitted a contingency plan with the 15% ROP plan pursuant 
    to section 172(c)(9). EPA will take action on this plan in a separate 
    rulemaking action. The contingency plan is a separate requirement of 
    the Act, and approval of the contingency plan is not a prerequisite for 
    approval of the 15% ROP plan.
    
    III. Criteria for 15% ROP Plan Approvals
    
        The requirements for 15% ROP plans are found in section 182(b)(1) 
    of the Act, and the following EPA guidance documents:
        1. Procedures for Preparing Emissions Projections, EPA-450/4-91-
    019, Environmental Protection Agency, July 1991.
        2. State Implementation Plans; General Preamble for the 
    Implementation of Title I of the Clean Air Act Amendments of 1990; 
    Proposed rule (57 FR 13498), Federal Register, April 16, 1992 (General 
    Preamble).
        3. ``November 15, 1992, Deliverables for Reasonable Further 
    Progress and Modeling Emission Inventories,'' memorandum from J. David 
    Mobley, Edwin L. Meyer, and G. T. Helms, Office of Air Quality Planning 
    and Standards, Environmental Protection Agency, August 7, 1992.
        4. Guidance on the Adjusted Base Year Emissions Inventory and the 
    1996 Target for the 15 Percent Rate of Progress Plans, EPA-452/R-92-
    005, Environmental Protection Agency, October 1992.
        5. ``Quantification of Rule Effectiveness Improvements,'' 
    memorandum from G. T. Helms, Chief, Ozone/Carbon Monoxide Programs 
    Branch, Office of Air Quality Planning and Standards, Environmental 
    Protection Agency, October 1992.
        6. Guidance for Growth Factors, Projections, and Control Strategies 
    for the 15 Percent Rate-of-Progress Plans, EPA-452/R-93-002, March 
    1993.
        7. ``Correction to `Guidance on the Adjusted Base Year Emissions 
    Inventory and the 1996 Target for the 15 Percent Rate of Progress 
    Plans','' memorandum from G. T. Helms, Chief, Ozone/Carbon Monoxide 
    Programs Branch, Office of Air Quality Planning and Standards, 
    Environmental Protection Agency, March 2, 1993.
        8. ``15 Percent Rate-of-Progress Plans,'' memorandum from G. T. 
    Helms, Chief, Ozone/Carbon Monoxide Programs Branch, Office of Air 
    Quality Planning and Standards, Environmental Protection Agency, March 
    16, 1993.
        9. Guidance on the Relationship Between the 15 Percent Rate-of-
    Progress Plans and Other Provisions of the Clean Air Act, EPA-452/R-93-
    007, Environmental Protection Agency, May 1993.
        10. ``Credit Toward the 15 Percent Rate-of-Progress Reductions from 
    Federal Measures,'' memorandum from G. T. Helms, Chief, Ozone/Carbon 
    Monoxide Programs Branch, Environmental Protection Agency, May 6, 1993.
        11. Guidance on Preparing Enforceable Regulations and Compliance 
    Programs for the 15 Percent Rate-of-Progress Plans, EPA-452/R-93-005, 
    Environmental Protection Agency, June 1993.
        12. ``Correction Errata to the 15 Percent Rate-of-Progress Plan 
    Guidance Series,'' memorandum from G. T. Helms, Chief, Ozone and Carbon 
    Monoxide Programs Branch, Environmental Protection Agency, July 28, 
    1993.
        13. ``Early Implementation of Contingency Measures for Ozone and 
    Carbon Monoxide (CO) Nonattainment Areas,'' memorandum from G. T. 
    Helms, Chief, Ozone/Carbon Monoxide Programs Branch, Environmental 
    Protection Agency, August 13, 1993.
        14. ``Region III Questions on Emission Projections for the 15 
    Percent Rate-of-Progress Plans,'' memorandum from G. T. Helms, Chief, 
    Ozone/Carbon Monoxide Programs Branch, Office of Air Quality Planning 
    and Standards, Environmental Protection Agency, August 17, 1993.
        15. ``Guidance on Issues Related to 15 Percent Rate-of-Progress 
    Plans,'' memorandum from Michael H. Shapiro, Acting Assistant 
    Administrator for Air and Radiation, Environmental Protection Agency, 
    August 23, 1993.
        16. ``Credit Toward the 15 Percent Requirements from Architectural 
    and Industrial Maintenance Coatings,'' memorandum from John S. Seitz, 
    Director, Office of Air Quality Planning and Standards, Environmental 
    Protection Agency, September 10, 1993.
        17. ``Reclassification of Areas to Nonattainment and 15 Percent 
    Rate-of-Progress Plans,'' memorandum from John S. Seitz, Director, 
    Office of Air Quality Planning and Standards, Environmental Protection 
    Agency, September 20, 1993.
        18. ``Clarification of `Guidance for Growth Factors, Projections 
    and Control Strategies for the 15 Percent Rate of Progress Plans','' 
    memorandum from G. T. Helms, Chief, Ozone/Carbon Monoxide Programs 
    Branch, Office of Air Quality Planning and Standards, Environmental 
    Protection Agency, October 6, 1993.
        19. ``Review and Rulemaking on 15 Percent Rate-of-Progress Plans,'' 
    memorandum from G. T. Helms, Chief, Ozone/Carbon Monoxide Programs 
    Branch, Office of Air Quality Planning and Standards, Environmental 
    Protection Agency, October 6, 1993.
        20. ``Questions and Answers from the 15 Percent Rate-of-Progress 
    Plan Workshop,'' memorandum from G. T. Helms, Chief, Ozone/Carbon 
    Monoxide Programs Branch, Environmental Protection Agency, October 29, 
    1993.
        21. ``Rate-of-Progress Plan Guidance on the 15 Percent 
    Calculations,'' memorandum from D. Kent Berry, Acting Director, Air 
    Quality Management Division, Environmental Protection Agency, October 
    29, 1993.
        22. ``Clarification of Issues Regarding the Contingency Measures 
    that are Due November 15, 1993 for Moderate and Above Ozone 
    Nonattainment Areas,'' memorandum from D. Kent Berry, Acting Director, 
    Air Quality Management Division, Environmental Protection Agency, 
    November 8, 1993.
        23. ``Credit for 15 Percent Rate-of-Progress Plan Reductions from 
    the Architectural and Industrial Maintenance (AIM) Coating Rule,'' 
    memorandum from John S. Seitz, Director, Office of Air Quality Planning 
    and Standards, Environmental Protection Agency, December 9, 1993.
        24. ``Guidance on Projection of Nonroad Inventories to Future 
    Years,'' memorandum from Philip A. Lorang,
    
    [[Page 24817]]
    
    Director, Emission Planning and Strategies Division, Office of Air and 
    Radiation, Environmental Protection Agency, February 4, 1994.
        25. ``Discussion at the Division Directors Meeting on June 1 
    Concerning the 15 Percent and 3 Percent Calculations,'' memorandum from 
    G. T. Helms, Chief, Ozone/Carbon Monoxide Programs Branch, Office of 
    Air Quality Planning and Standards, Environmental Protection Agency, 
    June 2, 1994.
        26. ``Future Nonroad Emission Reduction Credits for Court-Ordered 
    Nonroad Standards,'' memorandum from Philip A. Lorang, Director, 
    Emission Planning and Strategies Division, Office of Air and Radiation, 
    Environmental Protection Agency, November 28, 1994.
        27. ``Credit for the 15 Percent Rate-of-Progress Plans for 
    Reductions from the Architectural and Industrial Maintenance (AIM) 
    Coating Rule and the Autobody Refinishing Rule,'' memorandum from John 
    S. Seitz, Director, Office of Air Quality Planning and Standards, 
    Environmental Protection Agency, November 29, 1994.
        28. ``Transmittal of Rule Effectiveness Protocol for 1996 
    Demonstrations,'' memorandum from Susan E. Bromm, Director, Chemical, 
    Commercial Services and Municipal Division, Office of Compliance, 
    Environmental Protection Agency, December 22, 1994.
        29. ``Future Nonroad Emission Reduction Credits for Locomotives,'' 
    memorandum from Philip A. Lorang, Director, Emission Planning and 
    Strategies Division, Office of Air and Radiation, Environmental 
    Protection Agency, January 3, 1995.
        30. ``Credit for the 15 Percent Rate-of-Progress Plans for 
    Reductions from the Architectural and Industrial Maintenance (AIM) 
    Coating Rule,'' memorandum from John S. Seitz, Director, Office of Air 
    Quality Planning and Standards, Environmental Protection Agency, March 
    22, 1995.
        31. ``Fifteen Percent Rate-of-Progress Plans--Additional 
    Guidance,'' memorandum from John S. Seitz, Director, Office of Air 
    Quality Planning and Standards, Environmental Protection Agency, May 5, 
    1995.
        32. ``Update on the Credit for the 15 percent Rate-of-Progress 
    Plans for Reductions from the Architectural and Industrial Maintenance 
    Coatings Rule,'' memorandum from John S. Seitz, Director, Office of Air 
    Quality Planning and Standards, Environmental Protection Agency, March 
    7, 1996.
        33. ``Date by which States Need to Achieve all the Reductions 
    Needed for the 15% Plan from Inspection and Maintenance (I/M) and 
    Guidance for Recalculation,'' memorandum from Margo Oge, Director, 
    Office of Mobile Sources, and John S. Seitz, Director, Office of Air 
    Quality Planning and Standards, Environmental Protection Agency, August 
    13, 1996.
        34. ``Sample City Analysis: Comparison of Enhanced Inspection and 
    Maintenance (I/M) Reductions Versus Other 15 Percent Rate of Progress 
    Plan Measures,'' E.H. Pechan and Associates, December 12, 1996.
        35. ``Modeling 15 Percent Volatile Organic Compound (VOC) 
    Reduction(s) from I/M in 1999: Supplemental Guidance,'' memorandum from 
    Gay MacGregor, Director, Regional and State Programs Division, and 
    Sally Shaver, Director, Air Quality Strategies and Standards Division, 
    Environmental Protection Agency, December 23, 1996.
        36. ``15% Volatile Organic Compound (VOC) State Implementation Plan 
    (SIP) Approvals and the `As Soon As Practicable' Test,'' memorandum 
    from John S. Seitz, Director, Office of Air Quality Planning and 
    Standards, and Richard B. Ossias, Deputy Associate General Counsel, 
    Division of Air and Radiation, Office of General Counsel, Environmental 
    Protection Agency, February 12, 1997.
        For a 15% ROP plan SIP to be approved, the plan must adequately 
    justify how much emission reduction is needed to achieve 15% emission 
    reduction by November 15, 1996, and how the plan's control strategy 
    will secure that reduction. The procedure for calculating the needed 
    emission reduction is as follows:
        (A) Calculate the ``1990 ROP inventory'' by subtracting from the 
    area's ``1990 base year inventory'' 1 biogenic emissions, 
    emissions outside of the nonattainment area, and pre-enactment banked 
    emission credits;
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        \1\ Sections 172(c)(3) and 182(a)(1) of the Act require that 
    nonattainment plan provisions include a comprehensive, accurate 
    inventory of actual emissions which occurred in 1990 from all 
    sources of relevant pollutants in the nonattainment area. This 
    inventory provides an estimate of the amount of VOC and oxides of 
    nitrogen produced by emission sources such as automobiles, 
    powerplants and the use of consumer solvents in the household. 
    Because the approval of such inventories is necessary to an area's 
    15% ROP plan and attainment demonstration, the emission inventory 
    must be approved prior to or with the 15% ROP plan submission.
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        (B) Calculate the ``1990 adjusted base year inventory'' by 
    subtracting from the 1990 ROP inventory any emission reductions from 
    the pre-1990 FMVCP and 1990 RVP Federal regulations which occur between 
    1990 and 1996; 2
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        \2\ The 1990 adjusted base year inventory represents the 
    ``baseline emissions'' from which the 15 percent reduction is to be 
    calculated, as specified under section 182(b)(1)(B) of the Act. 
    Section 182(b)(1)(B) defines baseline emissions to mean the total 
    amounts of actual VOC emissions from all anthropogenic sources in 
    the ozone nonattainment areas during the calendar year of 1990, 
    excluding emissions that are eliminated by the pre-1990 FMVCP and 
    1990 RVP regulations. In the General Preamble, EPA interprets 
    ``calendar year'' emissions to consist of typical ozone season 
    weekday emissions, based on the fact that the ozone National Ambient 
    Air Quality Standard (NAAQS) (0.12 parts per million, one-hour 
    averaged) is generally exceeded or violated during ozone season 
    weekdays when ozone precursor emissions and meteorological 
    conditions are most conducive to ozone formation. Ozone seasons are 
    typically the summer months.
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        (C) Calculate ``15% of adjusted base year emissions'' by 
    multiplying the 1990 adjusted base year inventory by 15%;
        (D) Calculate the ``total required reductions by 1996'' by adding 
    emission reductions from the pre-1990 FMVCP and 1990 RVP federal rules 
    to the 15% of adjusted base year emissions calculation; 3
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        \3\ Under section 182(b)(1)(D), emission reductions pre-1990 and 
    1990 RVP regulations are not creditable toward meeting 15%. The 
    emission reductions which occurred by 1996 from these regulations 
    are added to emissions required to meet 15% to determine the total 
    amount of emission reduction by 1996 for the area.
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        (E) Calculate the ``1996 emissions target level'' by subtracting 
    from the 1990 ROP base year inventory the total required reductions by 
    1996;
        (F) Calculate the ``1996 projected emission estimate'' by a number 
    of methods, such as adding growth factors to the 1990 adjusted base-
    year inventory, or adding growth factors and required emission 
    reductions to the 1990 ROP inventory; and
        (G) Calculate the ``reduction required by 1996 to achieve 15% net 
    of growth'' by subtracting the 1996 target emissions level from the 
    1996 projected emissions level.
        In determining what control measures a State can use in its 15% ROP 
    plan strategy, the Act provides under section 182(b)(1)(C) that 
    emission reductions from control measures are creditable to the extent 
    that they have actually occurred before November 15, 1996. In keeping 
    with this requirement, the General Preamble states that all credited 
    emission reductions must be real, permanent, and enforceable, and that 
    regulations needed to implement the plan's control strategy must be 
    adopted and implemented by the State by November 15, 1996.
        The EPA has reviewed the State's submittal for consistency with the 
    requirements of the Act and EPA guidance. A summary of EPA's analysis 
    is provided below.
    
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    IV. Analysis of Clark and Floyd Counties 15% ROP Plan
    
        Indiana's 15% ROP Summary for Clark and Floyd Counties is shown in 
    the following table:
    
                   15% ROP Summary for Clark & Floyd Counties               
    ------------------------------------------------------------------------
                                                                Lbs VOC/day 
    ------------------------------------------------------------------------
             Calculation of Reduction Needs by 1996                         
    1990 Clark and Floyd Counties Total VOC Emissions.......         162,855
    1990 ROP Emissions (Anthropogenic only).................          86,815
    1990-1996 Noncreditable Reductions (Reductions from 1990                
     RVP and Pre-1990 FMVCP Regulations)....................          18,985
    1990 Adjusted Base Year Emissions (1990 ROP Emissions                   
     minus Noncreditable Reductions)........................          67,830
    15% of Adjusted Base Year Emissions.....................          10,175
    Total Expected Emission Reductions by 1996 (15% of                      
     Adjusted Base Year Emissions plus Noncreditable                        
     Reductions)............................................          29,160
    1996 Target Level (1990 ROP Emissions minus Total                       
     Required Emission Reductions by 1996)..................          57,655
    1996 Projected Emissions (1990 Adjusted Base Year                       
     Emissions plus Growth Factors).........................          74,764
    Reduction Needed to Achieve 15 Percent Net of Growth                    
     (1996 Projected Emissions minus 1996 Target Level).....          17,109
           Expected Reduction From Mandatory Controls                       
    Point Sources:                                                          
        Volatile Organic Liquid (VOL) Storage Tanks Rule                    
         (326 IAC 8-9)......................................             142
        Shipbuilding and Ship Repair Rule (326 IAC 8-12)....           1,164
        Wood Furniture Coating Rule (326 IAC 8-11)..........           2,445
    Area Sources:                                                           
        Automobile Refinishing Rule (326 IAC 8-10)..........           1,172
        Federal Architectural and Industrial Maintenance                    
         (AIM) Coatings Rule................................             750
                                                             ---------------
          Subtotal--Reductions From Mandatory Controls......           5,673
         Expected Reductions From Non Mandatory Controls                    
    Mobile Sources:                                                         
        Low Reid Vapor Pressure (RVP) Gasoline Rule--Mobile                 
         Sources (326 IAC 13-3).............................           3,800
        Improved Basic Vehicle Inspection and Maintenance (I/               
         M) Program (326 IAC 13-1.1)........................           2,200
        Commuter Credits from Kentucky Motorists............             700
        Ridesharing Program.................................              55
    Area Sources:                                                           
        Stage II Gasoline Vapor Recovery Rule (326 IAC 8-4-                 
         6).................................................           2,290
        Lower RVP Gasoline Rule--Area Sources (326 IAC 13-3)             787
        Residential Open Burning (326 IAC 4-1)..............             704
        Municipal Solid Waste (MSW) Landfill Rule (326 IAC 8-               
         8).................................................             345
    Point Sources:                                                          
        Rhodes, Inc. (Rhodes) Construction Permit...........             661
                                                             ---------------
          Subtotal--Reduction From Non Mandatory Controls...          11,542
                                                             ===============
          Total Creditable Reductions From 15% ROP Plan.....          17,215
    ------------------------------------------------------------------------
    
    A. Calculation of the 1990 Adjusted Base Year Emission Inventory
    
        To determine the 1990 adjusted base year inventory, Indiana used 
    its 1990 base year emission inventory as a starting point. This 
    inventory was found by EPA to meet the requirements of sections 
    172(c)(3) and 182(a)(1) of the Act for Clark and Floyd Counties and was 
    approved on June 20, 1994 (59 FR 31544). After this approval, Indiana 
    identified certain errors with the point and area source portions of 
    the inventory and made corrections to the inventory, accordingly. These 
    corrections were included with the Clark and Floyd 15% ROP plan 
    submittal and are being approved in today's action as a revision to the 
    SIP (See section V of this rulemaking action). Under the revised 1990 
    base year emissions inventory, total VOC emissions are 162,855 lbs VOC/
    day. Indiana subtracted from the 1990 base year inventory biogenic 
    emissions and emissions from outside Clark and Floyd Counties to 
    determine that the 1990 ROP inventory level is 86,815 lbs VOC/day. No 
    pre-enactment banked emission credit was included in the inventory.
        Indiana used EPA's Mobile Source Emissions Model (MOBILE)5a 
    emission factor model to determine the emission reductions from pre-
    1990 FMVCP and 1990 RVP regulations; the 1990 ROP inventory level minus 
    these reductions equates to a 1990 adjusted base year inventory level 
    of 67,830 lbs VOC/day. Indiana's documentation includes the actual 1990 
    motor vehicle emissions using 1990 vehicle miles traveled (VMT) and 
    MOBILE5a emission factors, and the adjusted emissions using 1990 VMT 
    and the MOBILE5a emission factors in calendar year 1996 with the 
    appropriate RVP for the nonattainment area as mandated by EPA. The plan 
    submittal includes adequate documentation showing how the MOBILE5a 
    model was run to determine the expected emission reductions by 1996 
    from pre-1990 FMVCP and 1990 RVP.
    
    B. 1996 ROP Target Emission Level
    
        To calculate the 1996 target emission level for Clark and Floyd 
    Counties, Indiana first multiplied the 1990 adjusted base year 
    inventory by 0.15 to determine that the 15% required emission reduction 
    by 1996 is 10,175 lbs VOC/day. Then, 18,985 lbs VOC/day of reductions 
    from noncreditable control measures (pre-1990 FMVCP and 1990 RVP) were 
    added to the 15% required reduction to determine that the total 
    expected reductions by 1996 is 29,160 lbs VOC/day. Finally, Indiana 
    subtracted the 1996 total expected
    
    [[Page 24819]]
    
    emission reductions from the 1990 ROP emission inventory to determine 
    that the 1996 emission target level for Clark and Floyd Counties is 
    57,655 lbs VOC/day.
        The 15% ROP plan submittal adequately documents the total expected 
    reductions in the nonattainment area by showing each step, discussing 
    any assumptions made, and stating the origin of the number used in the 
    calculations.
    
    C. Projected Emission Inventory
    
        To determine the 1996 projected emission inventory, Indiana 
    included in the 15% ROP plan the growth factors used together with 
    documentation for the assumptions made. The point, area, and non-road 
    mobile source emission inventories were projected using either source 
    supplied data, population forecasts, historical data, or, where 
    historical data were unavailable or not suitable to project, the U.S. 
    Department of Commerce Bureau of Economic Analysis (BEA) regional 
    growth data were used. The on-road mobile source emission inventory was 
    projected using MOBILE5a. The State's calculations for growth in the 
    on-road mobile, off-road mobile, industrial, and area source sectors 
    are 3,940 lbs VOC/day, 691 lbs VOC/day, 1,150 lbs VOC/day, and 1,153 
    lbs VOC/day, respectively, for a total of 6,934 lbs VOC/day. These 
    growth estimates were calculated in a manner consistent with EPA 
    guidance documents. The projected emissions were added to the 1990 
    adjusted base year inventory to determine that the 1990 projected 
    emission inventory level is 74,764 lbs VOC/day.
    
    D. Creditable Reductions From Control Measures
    
        From the calculation of the 1996 target emission level and 1996 
    projected emission level, Clark and Floyd Counties must reduce 
    emissions by 17,109 lbs VOC/day to secure the 15% ROP reduction. The 
    Clark and Floyd Counties 15% ROP plan does meet this requirement. The 
    total creditable emission reduction achieved by the 15% ROP plan is 
    17,215 lbs VOC/day. Emission reductions not needed to meet 15% can be 
    used in Clark and Floyd Counties' contingency plan or attainment plan.
        The SIP submittal includes documentation of the sources or source 
    categories which are expected to be affected by each control measure, 
    the sources' projected 1996 emissions without controls, and the 
    assumptions used to estimate how much each control measure will reduce 
    the sources' 1996 emissions. These assumptions were derived primarily 
    from Midwest Research Institute's April 30, 1993, document entitled 
    ``Support Document for Indiana's Clark and Floyd Nonattainment Area 
    1996 Rate-of-Progress Plan'' (MRI document), which was contracted by 
    EPA to assist Indiana in developing the 15% ROP plan.
        A review of the emission reduction credit taken for each control 
    measure follows:
    VOL Storage Rule
        SIP rule 326 IAC 8-9 requires special roof design and sealing 
    requirements for certain VOL storage vessels. Indiana is only taking 
    credit from controls on fixed roof tanks located in Floyd County. The 
    rule's control requirements for fixed roof tanks are assumed to have an 
    overall control efficiency estimate of 96%, with a rule effectiveness 
    of 80%. An emission reduction of 142 lbs VOC/day has been claimed from 
    this rule, which is acceptable.
    Shipbuilding and Ship Repair Rule
        SIP rule 326 IAC 8-12 requires shipbuilding and ship repair 
    operations to comply with certain low-VOC coating requirements, coating 
    thinning limitations, and VOC-reducing work practices. One source, 
    Jeffboat, is affected by this rule. Jeffboat is required to use water 
    based weld-through (shop) preconstruction primer with a VOC content of 
    zero. This limit is significantly tighter than EPA's Control Techniques 
    Guideline limit of 5.42 lbs VOC/gallon for preconstruction primers used 
    in this source category (see 61 FR 44050, August 27, 1996). In addition 
    to documentation contained in the submittal, Indiana submitted 
    supplemental documentation showing that the rule's control measures 
    have an estimated 73% VOC control efficiency. For the 15% ROP plan, 
    however, Indiana conservatively took an overall 50% VOC emission 
    reduction from the source's 1990 emission level. An emission reduction 
    claim of 1,164 lbs VOC/day for this rule is acceptable.
    Wood Furniture Coating Rule
        SIP rule 326 IAC 8-11 requires wood furniture coating operations to 
    comply with certain low-VOC coating requirements and VOC-reducing work 
    practices. The MRI document estimated that the rule's control 
    requirements would result in an overall 55% VOC emission reduction. 
    However, based on discussions with wood furniture coaters in Clark and 
    Floyd Counties, Indiana has determined that an overall control 
    efficiency of 32% is a more accurate estimate. The rule effectiveness 
    is assumed to be 80%. An emission reduction claim of 2,445 lbs VOC/day 
    from this rule is acceptable.
    Federal AIM Coatings Rule
        Pursuant to section 183(e) of the Act, EPA proposed on June 25, 
    1996 (61 FR 32729) a national rule requiring manufacturers of AIM 
    coatings to meet certain VOC content limitations. The March 7, 1996, 
    EPA memorandum ``Update on the Credit for the 15 Percent Rate-of-
    Progress Plans for Reductions from the Architectural and Industrial 
    Maintenance Coatings Rule'' allows States to take credit for a 20% 
    reduction in AIM coating emissions, even though promulgation of the 
    rule has been delayed. Based on this policy, Indiana has claimed 750 
    lbs VOC/day in emission reduction, which is acceptable.
    Automobile Refinishing Rule
        SIP rule 326 IAC 8-10 requires automobile and mobile equipment 
    refinishing shops to use lower VOC coatings, less-emitting spray-gun 
    and spray-gun cleaning equipment, and improved work practices to reduce 
    VOC. To improve rule effectiveness, this rule also requires refinishing 
    coating suppliers in the area to sell only coatings which meet the VOC 
    limits required in the rule. In addition to documentation contained in 
    the submittal, Indiana submitted supplemental documentation which 
    indicates that an overall 77.8% emission reduction can be expected from 
    all the control measures required by this rule, with 100% rule 
    effectiveness. The emission reduction claimed for this rule, 1,172 lbs 
    VOC/day, is acceptable.
    Low RVP Gasoline (7.8 PSI) Rule
        SIP rule 326 IAC 13-3 requires gasoline sold in Clark and Floyd 
    Counties to comply with a 7.8 RVP standard during the ozone season. 
    Although this rule regulates RVP, it is not an RVP rule promulgated by 
    the Administrator before enactment, nor required to be promulgated 
    under section 211(h). Therefore, this rule is creditable under section 
    182(b)(1)(D). MOBILE5a was used to estimate that the emission 
    reductions attributable to this requirement are 3,800 lbs VOC/day from 
    mobile sources, and 787 lbs VOC/day from area sources, respectively. 
    This emission reduction claim is acceptable.
    Improved I/M Program
        Many states have claimed emission reductions from improvements to 
    pre-existing I/M programs in their 15% ROP plans because such 
    improvements achieve more VOC emission reductions than most, if not all 
    other, control
    
    [[Page 24820]]
    
    strategies. For many States, however, actual emission reductions from 
    these improvements will not occur until after 1996. This is due to the 
    substantial amount of time needed to re-design I/M programs in response 
    to the September 18, 1995, revisions to EPA's I/M regulations (60 FR 
    48029) and/or the enactment of the National Highway Systems Designation 
    Act of 1995 (NHSDA), to secure State legislative approval when 
    necessary, and to set up the infrastructure to perform the testing 
    program.
        Given the heavy reliance by many States on upgrading I/M to help 
    satisfy 15% ROP plan requirements, and the recent NHSDA and regulatory 
    changes regarding I/M, EPA has recognized that it is not possible for 
    many States to achieve emission reductions attributable to I/M 
    improvements by November 15, 1996. Under these circumstances, 
    disapproval of the 15% ROP plan SIPs would serve no purpose. 
    Consequently, under certain circumstances, EPA will allow States that 
    pursue re-design of their I/M program to receive emission reduction 
    credit for their 15% ROP plans, even though the emission reductions 
    from I/M will occur after November 15, 1996.
        Specifically, the EPA will approve a 15% ROP SIP if the emission 
    reductions from a revised I/M program, as well as from the other 15% 
    ROP plan measures, will achieve the 15% level as soon after November 
    15, 1996, as practicable. To make this ``as soon as practicable'' 
    determination, the EPA must determine that the 15% ROP plan contains 
    all VOC control strategies that are practicable for the nonattainment 
    area in question and that meaningfully accelerate the date by which the 
    15% level is achieved. The EPA does not believe that measures 
    meaningfully accelerate the 15% date if they provide only an 
    insignificant amount of reductions.
        Revisions to Clark and Floyd Counties' I/M program (326 IAC 13-1.1) 
    were approved by EPA on March 19, 1996 (61 FR 11142). The State's I/M 
    contract requires that testing vehicles under the improved program 
    begin in July 1997. A single contractor, Envirotest, Inc., operates a 
    test-only centralized network for inspections and re-inspection. The 
    Indiana I/M program requires coverage of all 1976 and newer gasoline 
    powered light duty passenger cars and light duty trucks up to 9,000 
    pounds Gross Vehicle Weight Rating (GVWR). The State's program requires 
    that all applicable 1981 and newer vehicles meet a transient, mass 
    emissions tailpipe test that includes the purge and pressure test. All 
    applicable model year 1976 through 1980 vehicles will be subject to a 
    BAR90 single-speed idle test that includes the pressure test.
        EPA has analyzed Clark and Floyd Counties' improved I/M program to 
    predict when the emission reductions claimed in the 15% ROP plan for 
    the improvements will actually be secured. This analysis was based on 
    the methodology specified in EPA's policy memoranda, ``Date by Which 
    States Need to Achieve all the Reductions Needed for the 15% Plan from 
    I/M and Guidance for Recalculation,'' August 13, 1996, and ``Modeling 
    15% VOC Reduction(s) from I/M in 1999--Supplemental Guidance,'' 
    December 23, 1996. MOBILE5b runs were used to evaluate the credit, 
    using inputs that reflect actual program startup. Some of the input 
    parameters of the modeling included: a July 1997, program start date; 
    start-up cutpoints as recommended by EPA; and expected evaporative test 
    procedures available at start-up. The State has taken credit in the 
    Clark and Floyd Counties 15% ROP plan for 2,200 lbs VOC/day reductions 
    from improvements in I/M. Based on EPA's analysis, the emission 
    reduction claimed will be secured by November 1999. (See EPA's August 
    13, 1996, policy memorandum titled ``Date by Which States Need to 
    Achieve all the Reductions Needed for the 15% Plan from I/M and 
    Guidance for Recalculation,'' for further discussion on the 
    acceptability of the November 1999 date).
        To determine whether there are other available potential control 
    measures which can meaningfully accelerate the date by which 15% 
    emission reduction in Clark and Floyd Counties can be achieved, EPA 
    compared the Clark and Floyd Counties 15% ROP plan with control 
    measures included in 15% ROP plans nation-wide, which are listed in 
    EPA's report, ``Sample City Analysis: Comparison of Enhanced I/M 
    Reductions Versus other 15 Percent ROP Plan Measures,'' December 12, 
    1996, referenced in EPA's policy document ``15% VOC SIP Approvals and 
    the `As Soon As Practicable' Test,'' February 12, 1997. Based upon the 
    report, EPA believes that there are no other potential control measures 
    beyond those already included in the Clark and Floyd 15% ROP plan which 
    can secure a significant amount of emission reduction before November 
    1999.
        Because Indiana's improved I/M program will secure emission 
    reductions claimed under the Clark and Floyd Counties 15% ROP plan by 
    November 1999, and there are no other potential control measures which 
    can meaningfully accelerate the achievement of 15% reduction in the 
    counties before November 1999, the EPA finds that the Clark and Floyd 
    Counties 15% ROP plan does secure 15% emission reductions as soon as 
    practicable. On this basis, the emission reduction claimed under Clark 
    and Floyd Counties' 15% ROP plan for improved I/M is approvable.
    Commuter Credits, Kentucky Motorists
        The 1990 base year inventory includes emissions from VMT driven in 
    Clark and Floyd Counties by Louisville, Kentucky, motorists. Two post-
    1990 control measures implemented in Louisville have reduced emissions 
    from these motorists: reformulated gasoline and I/M pressure checks. 
    MOBILE5a was used to estimate the emission reduction in Clark and Floyd 
    Counties associated with these control measures, and the input and 
    output files are included in the SIP submittal. The emission reduction 
    claimed from this program, 700 lbs VOC/day, is acceptable.
    Ridesharing Program
        The Clark and Floyd Counties 15% ROP plan takes credit for a 
    ridesharing program, called the ``Commuter Pool,'' which affects 
    commuters in Clark and Floyd Counties. The Commuter Pool program 
    provides companies and employees with technical and financial 
    assistance in implementing car-pool and van-pool commuting 
    arrangements. The program covers the entire Louisville metropolitan 
    area and is administered by the Kentuckiana Regional Planning and 
    Development Agency (KIPDA), the Metropolitan Planning Organization 
    (MPO) for the area. The program is programmed and funded in the 
    Louisville metropolitan area's Horizon 2020 Transportation Improvement 
    Plan and fiscal year (FY) 1997-2000 Transportation Improvement Program 
    (TIP). The rideshare program is partly funded through the federal 
    Congestion Mitigation and Air Quality Improvement Program 
    (CMAQ).4
    ---------------------------------------------------------------------------
    
        \4\ MPOs can utilize United States Department of Transportation 
    (DOT) funds from CMAQ. CMAQ is a federal program which provides 
    funding for transportation related projects and programs designed to 
    contribute to attainment of air quality standards.
    ---------------------------------------------------------------------------
    
        To demonstrate emission reductions achieved by this program in 
    Clark and Floyd Counties, Indiana submitted an air quality analysis 
    from KIPDA which was developed using a similar methodology used to 
    evaluate the FY 1994-1997 TIP for the Louisville metropolitan area. As 
    part of this analysis, KIPDA isolated the impacts of the ridesharing 
    program on roadways in Clark and Floyd Counties regardless of
    
    [[Page 24821]]
    
    whether employment locations are based in Indiana or Kentucky. This 
    impact is estimated to be an emission reduction of 55 lbs VOC/day.
        This program was submitted with the Clark and Floyd 15% ROP plan as 
    a transportation control measure (TCM) to be included in the SIP. EPA 
    is, in today's action, approving the TCM as a SIP revision (see section 
    V of the rulemaking). The TCM has been implemented since 1994 and was 
    initially programmed and funded in the Louisville metropolitan area 
    1994-1997 TIP. This program's continued operation will be ensured 
    through federal transportation conformity requirements. The emission 
    reduction claimed from the program is acceptable.
    Stage II Gasoline Vapor Recovery Rule
        SIP rule 326 IAC 8-4-6 requires facilities that sell more than 
    10,000 gallons of gasoline per month to operate Stage II gasoline vapor 
    recovery systems certified to have a control effectiveness of at least 
    95%. Indiana has estimated that the rule has an 84% program in-use 
    efficiency, accounting for annual inspection program effects and the 
    exemption of facilities with a monthly gasoline throughput of less than 
    10,000 gallons. The State's emission reduction claim of 2,290 lbs VOC/
    day from this rule is acceptable.
    Residential Open Burning Rule
        Under SIP rule 326 IAC 4-1, residential open burning is banned in 
    Clark and Floyd Counties. Indiana estimated that this rule would reduce 
    open burning emissions by 80%, or 704 lbs VOC/day, which is acceptable.
    MSW Landfill Rule
        SIP rule 326 IAC 8-8 applies to new and existing MSW landfills 
    emitting greater than 55 tons of non-methane organic compounds per year 
    and with a minimum design capacity of 100,000 megagrams of solid waste. 
    The rule requires the operation of a landfill gas collection system and 
    combustion device. Based on a destruction efficiency of 98% and 
    collection efficiencies ranging from 50% to 60%, Indiana estimated that 
    an overall VOC emission control efficiency range of 49% to 59% may be 
    achieved, with a rule effectiveness of 80%. The State has claimed 345 
    lbs VOC/day in emission reduction from this rule, which is acceptable.
    Rhodes Construction Permits
        Rhodes, located in Charlestown, Clark County, operates a heatset 
    web offset printing operation. In 1990, the source was emitting 
    approximately 125 tons of VOC per year after controls. Beginning in 
    October 15, 1991, Rhodes began a series of replacements and new 
    installation of presses. Rhodes has been issued three construction 
    permits, CP 019-2110, CP 019-2696, and CP 019-4362, in accordance with 
    326 IAC 2-1-3, to replace and install presses. These permits require 
    Rhodes to improve its VOC emission control by installing and operating 
    two thermal incinerators with a 98% VOC destruction efficiency to 
    control ink emissions from all presses in the plant.
        Indiana estimated emission reductions from the VOC control 
    improvements using a July 1, 1994, report submitted by Rhodes to IDEM 
    pursuant to the State's emission statement program.\5\ This report was 
    based upon stack test data with one of the new thermal incinerators in 
    operation. IDEM inspectors quality assured the report and found it 
    acceptable. Using software designed to calculate annual emissions from 
    data submitted under the emission statement program, IDEM determined 
    that in 1994 Rhodes was emitting 13.5 tons of VOC per year after 
    controls, representing a 111.5 ton VOC/year reduction from 1990 levels. 
    IDEM used an EPA conversion equation (to account for emissions per 
    summertime day) to determine that the new controls at Rhodes have 
    reduced emissions by 771 lbs VOC/day.
    ---------------------------------------------------------------------------
    
        \5\ Indiana's emission statement program (326 IAC 2-6) was 
    adopted pursuant to section 182(a)(3)(B) of the Act. Under this 
    program, owners and operators of stationary sources of VOC or oxides 
    of nitrogen (NOx) are required to provide annual 
    statements, in a format required under 326 IAC 2-6, showing actual 
    emissions of NOx and/or VOC from the sources. EPA 
    approved Indiana's emission statement program on June 10, 1994 (59 
    FR 29953).
    ---------------------------------------------------------------------------
    
        Indiana submitted the Rhodes construction permits with the Clark 
    and Floyd Counties 15% ROP plan and claimed a 661 lbs VOC/day emission 
    reduction from the permits. In today's action, EPA is approving the 
    Rhodes construction permits as revisions to the Indiana ozone SIP (see 
    section V of this rulemaking action). It should be noted that Indiana's 
    15% ROP plan submittal states the total reduction from Rhodes as 865 
    lbs VOC/day. However, IDEM has subsequently indicated to EPA that the 
    emission reduction from Rhodes which should have been claimed in the 
    submittal is 771 lbs VOC/day. In today's action, EPA is approving an 
    771 lbs VOC/day emission reduction which can be credited toward ROP. 
    Since Indiana claimed 661 lbs VOC/day in emission reduction from Rhodes 
    in the 15% ROP plan submittal, the remaining 110 lbs/day can be used 
    toward meeting Clark and Floyd Counties' attainment demonstration or 
    contingency plan requirements.
    
    E. Enforceability Issues
    
        All measures and other elements in the SIP must be enforceable by 
    the State and EPA (see sections 172(c)(6), 110(a)(2)(A) of the Act, and 
    57 FR 13556). The EPA criteria addressing the enforceability of SIPs 
    and SIP revisions were stated in a September 23, 1987, memorandum (with 
    attachments) from the Assistant Administrator for Air and Radiation 
    (see 57 FR 13541). Nonattainment area plan provisions must also contain 
    a program that provides for enforcement of the control measures and 
    other elements in the SIP [see section 110(a)(2)(C) of the Act].
        The control measures included in the Clark and Floyd Counties 15% 
    ROP plan have been fully adopted by Indiana and have been submitted to 
    EPA as a revision to the State's ozone SIP. The EPA has independently 
    reviewed each control measure to determine conformance with SIP 
    requirements under section 110 and part D of the Act, and the measure's 
    overall enforceability. Rulemaking action on each control measure is as 
    follows:
    
    ------------------------------------------------------------------------
           Control measure                    Date of EPA approval          
    ------------------------------------------------------------------------
    VOL Storage Vessel Rule (326   January 17, 1997 (62 FR 2593)            
     IAC 8-9).                                                              
    Shipbuilding and Ship Repair   January 22, 1997 (62 FR 3216)            
     Rule (326 IAC 8-12).                                                   
    Wood Furniture Coating Rule    October 30, 1996 (61 FR 55889)           
     (326 IAC 8-11).                                                        
     Federal Architectural and     Proposed federal regulation for which    
     Industrial Maintenance         Indiana can take credit (See March 7,   
     Coatings Rule.                 1996, memorandum from John Seitz,       
                                    Director, Office of Air Quality Planning
                                    and Standards to Regional Division      
                                    Directors).                             
    Automobile Refinishing Rule    June 13, 1996 (61 FR 29965)              
     (326 IAC 8-10).                                                        
    
    [[Page 24822]]
    
                                                                            
    Low RVP Gasoline Rule (326     February 9, 1996 (61 FR 4895)            
     IAC 13-3).                                                             
    Improved Basic I/M (326 IAC    March 19, 1996 (61 FR 11142)             
     13-1.1).                                                               
    Commuter Credits, Kentucky     February 16, 1994 (59 FR 7716) (Federal  
     Motorists.                     reformulated gasoline)                  
                                   July 28, 1995 (60 FR 38700) (Louisville  
                                    Hybrid I/M)                             
    KIPDA Ridesharing Program....  Date of EPA approval action is date of   
                                    today's Federal Register. See discussion
                                    below.                                  
    Stage II Vapor Recovery (326   April 28, 1994 (59 FR 21942)             
     IAC 8-4-6).                                                            
    Residential Open Burning Ban   February 1, 1996 (61 FR 3581)            
     (326 IAC 4-1).                                                         
    Municipal Solid Waste          January 17, 1997 (62 FR 2591)            
     Landfills (326 IAC 8-8).                                               
    Rhodes Construction Permits..  Date of EPA approval action is date of   
                                    today's Federal Register. See discussion
                                    below.                                  
    ------------------------------------------------------------------------
    
    F. Transportation Conformity 1996 Mobile Source Emissions Budget
    
        Section 176(c) requires States to submit SIP revisions establishing 
    the State's criteria and procedures for assessing the conformity of 
    federal actions (transportation and general) to the SIP's purpose of 
    eliminating or reducing the severity and number of violations of the 
    National Ambient Air Quality Standards and achieving expeditious 
    attainment of such standards. These conformity SIP revisions must 
    assure that federal actions will not: (1) cause or contribute to any 
    new violation of any standard in any area, (2) increase the frequency 
    or severity of any existing violation of any standard in any area, or 
    (3) delay timely attainment of any standard or any required interim 
    emission reductions or other milestones in any area. To assure 
    conformity with the SIP, conformity analyses for transportation 
    projects must take into account the amount of on-road mobile source 
    emissions that can be emitted in accordance with SIP emission reduction 
    milestones. For purposes of EPA transportation conformity 
    determinations, the 1996 emission level for on-road mobile sources that 
    is achieved from the 15% ROP plan constitutes the 1996 VOC mobile 
    source emission budget for Clark and Floyd Counties. This level, which 
    is derived from MOBILE5a using 1996 estimated emissions with improved 
    I/M, 7.8 low RVP, and Kentucky commuter credits, is 17,340 lbs VOC/day. 
    Therefore, final approval of the 15% ROP plan also approves the 1996 
    mobile source VOC emission budget.
        For years after 1996, conformity determinations addressing VOCs 
    must demonstrate consistency with this plan revision's motor vehicle 
    emissions budget, and satisfaction of the build/no-build test, as 
    defined under 40 CFR part 93.
    
    G. Conclusion
    
        The EPA has reviewed the Clark and Floyd Counties 15% ROP plan SIP 
    revision submitted to EPA as described above, and finds that the plan 
    satisfies the applicable requirements of the Act, as well as EPA 
    guidance for such plans. Therefore, the EPA, in this action, is 
    approving these plans as a revision to the Indiana ozone SIP.
    
    V. Other Rulemaking Actions
    
    A. Corrections to 1990 Base Year Emissions Inventory
    
        Corrections for Clark and Floyd Counties 1990 base year emissions 
    inventory were submitted as Appendix B in the 15% ROP plan submittal. 
    In today's action, EPA is approving the revised 1990 base year 
    emissions inventory as a revision to the SIP. The following table 
    explains the revisions:
    
    Revisions to Clark and Floyd Counties' 1990 Base-Year Emission Inventory
    ------------------------------------------------------------------------
             Sources affected                  Explanation of changes       
    ------------------------------------------------------------------------
    Service station tank breathing      Controlled emissions from service   
     area sources.                       station tank breathing were        
                                         erroneously included in the 1990   
                                         base year emissions inventory and  
                                         have now been removed.             
    Ashland...........................  Ashland has submitted corrected 1990
                                         base year emissions for its point  
                                         sources.                           
    Rhodes............................  Rhodes was not included in the 1990 
                                         base year emissions inventory.     
                                         Emissions from the source have now 
                                         been added.                        
    Louisville Hardwoods, Inc.........  Because Louisville Hardwoods' 1990  
                                         emissions were less than the 10    
                                         tons VOC/year point source         
                                         inventory cut off, the source's    
                                         emissions have been shifted from   
                                         the point source inventory to the  
                                         area source inventory.             
    ------------------------------------------------------------------------
    
    B. Ridesharing Program
    
        Included as a requested SIP revision in the Clark and Floyd 15% ROP 
    plan submittal is a ridesharing program, called the Commuter Pool, 
    affecting commuters in Clark and Floyd Counties. The Commuter Pool 
    program provides companies and employees in the Louisville metropolitan 
    area (including Clark and Floyd Counties) with technical and financial 
    assistance in implementing car-pool and van-pool commuting 
    arrangements.
        To take credit for the ridesharing program, the program must be 
    approved by EPA as a Transportation Control Measure (TCM) and 
    incorporated in the SIP. EPA's requirements for TCMs are summarized in 
    the June 1993, EPA guidance document, Guidance on Preparing Enforceable 
    Regulations and Compliance Programs for the 15 Percent Rate-of-Progress 
    Plans. The required elements are (1) A complete description of the 
    measure, and, if possible, its estimated emissions reduction benefits; 
    (2) evidence that the measure was properly adopted by a jurisdiction(s) 
    with legal authority to execute the measure; (3) evidence that funding 
    will be available to implement the measure; (4) evidence that all 
    necessary approvals have been obtained from all appropriate government 
    offices; (5) evidence that a complete schedule to plan, implement, and 
    enforce the measure has been adopted by the implementing agencies; and 
    (6) a description of any monitoring program to evaluate the measure's 
    effectiveness and to allow for necessary in-place corrections or 
    alterations.
        The Commuter Pool program, as submitted by Indiana in the Clark and 
    Floyd 15% ROP plan submittal, fully satisfies TCM requirements based on 
    the following: (1) A complete description of the program and estimated 
    emission reduction are provided in the documentation submitted with the 
    ROP plan; (2) the measure has been adopted
    
    [[Page 24823]]
    
    by KIPDA, the authorized MPO for Louisville; (3) the program is 
    currently operating and has received federal CMAQ program money for 
    operation; (4) all necessary approvals have been obtained from DOT on 
    the FY 1997-2000 TIP and Horizon 2020 Transportation Plan (which 
    includes the TCM); (5) the Transportation Plan and TIP constitute the 
    schedule, implementation mechanism, and also the enforcement mechanism 
    for the TCM (the conformity provisions in 40 CFR part 93 provide that 
    TCMs in an approved SIP must be implemented on schedule before a 
    conformity determination can be made by DOT); and (6) the CMAQ program 
    requires monitoring of programs funded under CMAQ and annual reports to 
    DOT on achieved emission reductions. The Commuter Pool TCM, therefore, 
    is approvable.
    
    C. Rhodes Permits
    
        Rhodes' heatset web offset printing operations are subject to three 
    construction permits issued under 326 IAC 2-1 of the Indiana rules. The 
    construction permits are CP 019-2110, CP 019-2696, and CP 019-4362, 
    issued October 15, 1991, December 18, 1992, and April 21, 1995, 
    respectively. These permits were submitted with the Clark and Floyd 15% 
    ROP plan as a revision to the SIP.
        Under the construction permits, Rhodes must not operate its presses 
    unless the incinerators are functioning properly. Each incinerator must 
    meet a 98% VOC destruction efficiency, and must maintain a combustion 
    temperature at or above 1400 degrees Fahrenheit (760 degrees Celsius) 
    to ensure continuous compliance with the destruction efficiency. The 
    plant must meet a VOC capture efficiency of 86%, assuring an overall 
    efficiency of 84% minimum. Rhodes was required to conduct an initial 
    compliance stack test for each incinerator. Daily record keeping of the 
    incinerators' minimum operating inlet temperature and minimum duct 
    velocity must be kept for at least two years. Exceedances must be 
    reported to IDEM.
        These permits are being approved in today's action as revisions to 
    the Indiana ozone SIP.
    
    VI. Final Rulemaking Action
    
        The EPA approves Indiana's 15% ROP plan for Clark and Floyd 
    Counties as a revision to the SIP. For transportation conformity 
    purposes, final approval of this 15% ROP plan also approves the 1996 
    mobile source emission budget of 16,785 lbs VOC/day. EPA also approves 
    corrections to Clark and Floyd Counties 1990 base year emissions 
    inventory, the Rhodes permits, and the ridesharing program TCM included 
    in the 15% ROP submittal.
        The EPA is publishing this action without prior proposal because 
    EPA views this as a noncontroversial revision and anticipates no 
    adverse comments. However, in a separate document in this Federal 
    Register publication, the EPA is proposing to approve the SIP revision 
    should adverse or critical comments be filed. This action will be 
    effective on July 7, 1997 unless, by June 6, 1997, adverse or critical 
    comments on the approval are received.
        If the EPA receives adverse comments, the approval will be 
    withdrawn before the effective date by publishing a subsequent 
    rulemaking that will withdraw the final action. All public comments 
    received will be addressed in a subsequent final rule based on this 
    action serving as a proposed rule. The 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 on 
    July 7, 1997.
        Nothing in this action should be construed as permitting, 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.
    
    VII. 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 (OMB) has 
    exempted this regulatory action from Executive Order 12866 review.
    
    B. Regulatory Flexibility
    
        Under the Regulatory Flexibility Act, 5 U.S.C. section 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. sections 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 the 
    State action. The Clean Air Act forbids EPA to base its actions 
    concerning SIPs on such grounds. Union Electric Co. v. EPA., 427 U.S. 
    246, 256-66 (1976); 42 U.S.C. 7410(a)(2).
    
    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 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 Section 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 Comptroller General of the 
    General Accounting Office prior to publication of the rule in today's 
    Federal Register. This rule is not a major rule as defined by Section 
    804(2).
    
    F. 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 7, 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
    
    [[Page 24824]]
    
    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. (See Section 307(b)(2)).
    
    List of Subjects in 40 CFR Part 52
    
        Environmental protection, Air pollution control, Hydrocarbons, 
    Intergovernmental relations, Incorporation by reference, Ozone, 
    Reporting and recordkeeping requirements.
    
        Dated: April 16, 1997.
    William E. Muno,
    Acting Regional Administrator.
    
        For the reasons stated in the preamble, part 52, chapter I, title 
    40 of the Code of Federal Regulations is amended as follows:
    
    PART 52--[AMENDED]
    
        1. The authority citation for Part 52 continues to read as follows:
    
        Authority: 42 U.S.C. 7401-7671q.
    
        2. Section 52.770 is amended by adding paragraph (c)(118) to read 
    as follows:
    
    
    Sec. 52.770  Identification of Plan.
    
    * * * * *
        (c) * * *
        (118) On July 12, 1995, Indiana submitted as a revision to the 
    State Implementation Plan construction permits CP 019-2110, CP 019-
    2696, and CP 019-4362, issued under Indiana rule 326 IAC 2-1. The 
    permits establish volatile organic compound control requirements for 
    Rhodes Incorporated's heatset web offset printing presses.
        (i) Incorporation by reference. Construction Permit CP 019-2110, 
    issued and effective October 15, 1991; Construction Permit CP 019-2696, 
    issued and effective December 18, 1992; Construction permit CP 019-
    4362, issued and effective April 21, 1995.
        3. Section 52.777 is amended by adding paragraph (m) to read as 
    follows:
    
    
    Sec. 52.777  Control Strategy: Photochemical Oxidants (hydrocarbon).
    
    * * * * *
        (m) On July 12, 1995, Indiana submitted a 15 percent rate-of-
    progress plan for the Clark and Floyd Counties portion of the 
    Louisville ozone nonattainment area. This plan satisfies Clark and 
    Floyd Counties' requirements under section 182(b) of the Clean Air Act, 
    as amended in 1990.
        4. Section 52.777 is amended by adding paragraph (n) to read as 
    follows:
    
    
    Sec. 52.777  Control Strategy: Photochemical Oxidants (hydrocarbon).
    
    * * * * *
        (n) On July 12, 1995, Indiana submitted corrections to the 1990 
    base year emissions inventory for Clark and Floyd Counties. The July 
    12, 1995, corrections are recognized revisions to Indiana's emissions 
    inventory.
        5. Section 52.777 is amended by adding paragraph (o) to read as 
    follows:
    
    
    Sec. 52.777  Control Strategy: Photochemical Oxidants (hydrocarbon).
    
    * * * * *
        (o) On July 12, 1995, Indiana submitted as a revision to the 
    Indiana State Implementation Plan a ridesharing transportation control 
    measure which affects commuters in Clark and Floyd Counties.
    
    [FR Doc. 97-11908 Filed 5-6-97; 8:45 am]
    BILLING CODE 6560-50-P
    
    
    

Document Information

Effective Date:
7/7/1997
Published:
05/07/1997
Department:
Environmental Protection Agency
Entry Type:
Rule
Action:
Direct final rule.
Document Number:
97-11908
Dates:
The ``direct final'' rule, is effective July 7, 1997, unless EPA receives adverse or critical comments by June 6, 1997. If the effective date is delayed, timely notice will be published in the Federal Register.
Pages:
24815-24824 (10 pages)
Docket Numbers:
IN54-1a, FRL-5819-3
PDF File:
97-11908.pdf
CFR: (2)
40 CFR 52.770
40 CFR 52.777