Approval and Promulgation of Air Quality Implementation Plans; Pennsylvania; Determination of Attainment of the 2006 24-Hour Fine Particulate Standard for the Liberty-Clairton Nonattainment Area, 22666-22671 [2015-09416]

Download as PDF 22666 Federal Register / Vol. 80, No. 78 / Thursday, April 23, 2015 / Proposed Rules of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.); • Is certified as not having a significant economic impact on a substantial number of small entities under the Regulatory Flexibility Act (5 U.S.C. 601 et seq.); • Does not contain any unfunded mandate or significantly or uniquely affect small governments, as described in the Unfunded Mandates Reform Act of 1995 (Pub. L. 104–4); • Does not have Federalism implications as specified in Executive Order 13132 (64 FR 43255, August 10, 1999); • Is not an economically significant regulatory action based on health or safety risks subject to Executive Order 13045 (62 FR 19885, April 23, 1997); • Is not a significant regulatory action subject to Executive Order 13211 (66 FR 28355, May 22, 2001); • Is not subject to requirements of Section 12(d) of the National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272 note) because application of those requirements would be inconsistent with the CAA; and • Does not provide EPA with the discretionary authority to address, as appropriate, disproportionate human health or environmental effects, using practicable and legally permissible methods, under Executive Order 12898 (59 FR 7629, February 16, 1994). In addition, the SIP is not approved to apply on any Indian reservation land or in any other area where EPA or an Indian tribe has demonstrated that a tribe has jurisdiction. In those areas of Indian country, the rule does not have tribal implications and will not impose substantial direct costs on tribal governments or preempt tribal law as specified by Executive Order 13175 (65 FR 67249, November 9, 2000). mstockstill on DSK4VPTVN1PROD with PROPOSALS List of Subjects in 40 CFR Part 52 Environmental protection, Air pollution control, Incorporation by reference, Intergovernmental relations, Particulate matter, Reporting and recordkeeping requirements, Sulfur oxides. Dated: April 2, 2015. Susan Hedman, Regional Administrator, Region 5. [FR Doc. 2015–09365 Filed 4–22–15; 8:45 am] BILLING CODE 6560–50–P VerDate Sep<11>2014 15:57 Apr 22, 2015 Jkt 235001 ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 52 [EPA–R03–OAR–2015–0175; FRL–9926–70– Region 3] Approval and Promulgation of Air Quality Implementation Plans; Pennsylvania; Determination of Attainment of the 2006 24-Hour Fine Particulate Standard for the LibertyClairton Nonattainment Area Environmental Protection Agency (EPA). ACTION: Proposed rule. AGENCY: The Environmental Protection Agency (EPA) is proposing to make a determination of attainment regarding the Liberty-Clairton, Pennsylvania 2006 24-hour fine particulate matter (PM2.5) nonattainment area (hereafter ‘‘LibertyClairton Area’’ or ‘‘the Area’’). EPA is proposing to determine that the LibertyClairton Area has attained the 2006 24hour PM2.5 National Ambient Air Quality Standard (NAAQS), based upon quality-assured, quality-controlled and certified ambient air monitoring data for the calendar years 2012–2014. If EPA finalizes this ‘‘clean data determination,’’ the requirement for the Liberty-Clairton Area to submit an attainment demonstration, reasonably available control measures (RACM), reasonable further progress (RFP), and contingency measures related to attainment of the 2006 24-hour PM2.5 NAAQS would be suspended for so long as the Area continues to attain the 2006 24-hour PM2.5 NAAQS. If finalized, this determination will not constitute a redesignation to attainment. This proposed action is being taken under the Clean Air Act (CAA). DATES: Written comments must be received on or before May 26, 2015. ADDRESSES: Submit your comments, identified by Docket ID Number EPA– R03–OAR–2015–0175 by one of the following methods: A. www.regulations.gov. Follow the on-line instructions for submitting comments. B. Email: powers.marilyn@epa.gov. C. Mail: EPA–R03–OAR–2015–0175, Marilyn Powers, Acting Associate Director, Office of Air Program Planning, Mailcode 3AP30, U.S. Environmental Protection Agency, Region III, 1650 Arch Street, Philadelphia, Pennsylvania 19103. D. Hand Delivery: At the previouslylisted EPA Region III address. Such deliveries are only accepted during the Docket’s normal hours of operation, and SUMMARY: PO 00000 Frm 00009 Fmt 4702 Sfmt 4702 special arrangements should be made for deliveries of boxed information. Instructions: Direct your comments to Docket ID No. EPA–R03–OAR–2015– 0175. EPA’s policy is that all comments received will be included in the public docket without change, and may be made available online at www.regulations.gov, including any personal information provided, unless the comment includes information claimed to be Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Do not submit information that you consider to be CBI or otherwise protected through www.regulations.gov or email. The www.regulations.gov Web site is an ‘‘anonymous access’’ system, which means EPA will not know your identity or contact information unless you provide it in the body of your comment. If you send an email comment directly to EPA without going through www.regulations.gov, your email address will be automatically captured and included as part of the comment that is placed in the public docket and made available on the Internet. If you submit an electronic comment, EPA recommends that you include your name and other contact information in the body of your comment and with any disk or CD–ROM you submit. If EPA cannot read your comment due to technical difficulties and cannot contact you for clarification, EPA may not be able to consider your comment. Electronic files should avoid the use of special characters, any form of encryption, and be free of any defects or viruses. Docket: All documents in the electronic docket are listed in the www.regulations.gov index. Although listed in the index, some information is not publicly available, i.e., CBI or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, is not placed on the Internet and will be publicly available only in hard copy form. Publicly available docket materials are available either electronically in www.regulations.gov or in hard copy during normal business hours at the Air Protection Division, U.S. Environmental Protection Agency, Region III, 1650 Arch Street, Philadelphia, Pennsylvania 19103. FOR FURTHER INFORMATION CONTACT: ´ Emlyn Velez-Rosa, (215) 814–2038, or by email at velez-rosa.emlyn@epa.gov. SUPPLEMENTARY INFORMATION: I. Summary of Proposed Actions EPA is proposing to make a determination that the Liberty-Clairton E:\FR\FM\23APP1.SGM 23APP1 Federal Register / Vol. 80, No. 78 / Thursday, April 23, 2015 / Proposed Rules Area has attained the 2006 24-hour PM2.5 NAAQS. This proposed ‘‘clean data determination’’ is based upon quality assured and certified ambient air monitoring data that show the area has monitored attainment of the 2006 24hour PM2.5 NAAQS for the 2012–2014 monitoring period. If EPA finalizes this determination, the requirement for the Liberty-Clairton Area to submit an attainment demonstration, RACM, RFP, and contingency measures related to attainment of the 2006 24-hour PM2.5 NAAQS shall be suspended for so long as the area continues to attain that NAAQS. However, if finalized, this determination of attainment will not suspend Pennsylvania’s other required statutory obligations including requirements for an emissions inventory and preconstruction permitting program for the Liberty-Clairton Area for the 2006 24-hour PM2.5 NAAQS. This final determination will not constitute a redesignation to attainment. The Liberty-Clairton Area will remain designated nonattainment for the 2006 24-hour PM2.5 NAAQS until such time as EPA determines that the LibertyClairton Area meets the CAA requirements for redesignation to attainment, including an approved maintenance plan under section 175A. mstockstill on DSK4VPTVN1PROD with PROPOSALS II. Background A. PM2.5 NAAQS History On July 16, 1997, EPA established an annual PM2.5 NAAQS at 15.0 micrograms per cubic meter (mg/m3) (hereafter referred to as ‘‘the 1997 annual PM2.5 NAAQS’’), based on a 3year average of annual mean PM2.5 concentrations (62 FR 38652, July 18, 1997). At that time, EPA also established a 24-hour standard of 65 mg/ m3 (hereafter referred to as ‘‘the 1997 24-hour PM2.5 NAAQS’’). See 40 CFR 50.7. The 1997 PM2.5 NAAQS were based on significant evidence and numerous health studies demonstrating that serious health effects are associated with exposures to particulate matter. The process for designating areas following promulgation of a new or revised NAAQS is contained in section 107(d)(1) of the CAA. On January 5, 2005 (70 FR 944), EPA published its nonattainment area designations for the 1997 annual PM2.5 NAAQS based upon air quality monitoring data for calendar years 2001–2003. These designations, effective on April 5, 2005, included the Liberty-Clairton Area as a nonattainment area for the 1997 annual PM2.5 NAAQS. The Liberty-Clairton Area is comprised of the following portion of Allegheny County: the boroughs of Lincoln, Glassport, Liberty, VerDate Sep<11>2014 15:57 Apr 22, 2015 Jkt 235001 and Port Vue and the City of Clairton. See 40 CFR 81.339 (Pennsylvania). The Liberty-Clairton Area is surrounded by, but separate and distinct from, the Pittsburgh-Beaver Valley PM2.5 nonattainment area.1 On September 21, 2006, EPA retained the 1997 annual PM2.5 NAAQS at 15.0 mg/m3 (hereby ‘‘the 2006 annual PM2.5 NAAQS’’) based on a 3-year average of annual mean PM2.5 concentrations, and promulgated a new 24-hour standard of 35 mg/m3 based on a 3-year average of the 98th percentile of 24-hour concentrations (71 FR 61144, October 17, 2006). The revised 2006 24-hour PM2.5 standard (hereafter ‘‘the 2006 24hour PM2.5 NAAQS’’) became effective on December 18, 2006. See 40 CFR 50.13. The more stringent 2006 24-hour PM2.5 NAAQS is based on significant evidence and numerous health studies demonstrating that serious health effects are associated with short-term exposures to PM2.5 at this level. Many petitioners challenged aspects of EPA’s 2006 revisions to the PM2.5 NAAQS. See American Farm Bureau Federation and National Pork Producers Council, et al. v. EPA, 559 F.3d 512 (D.C. Cir. 2009). As a result of this challenge, the U.S. Court of Appeals for the District of Columbia Circuit (D.C. Circuit) remanded the 2006 annual PM2.5 NAAQS to EPA for further proceedings. The 2006 24-hour PM2.5 NAAQS was not affected by the remand and remains in effect. On November 13, 2009, EPA published designations for the 2006 24hour PM2.5 NAAQS (74 FR 58688), which became effective on December 14, 2009. In that action, EPA designated the Liberty-Clairton Area as nonattainment for the 2006 24-hour PM2.5 NAAQS, retaining the same geographical boundaries as for the 1997 annual PM2.5 NAAQS. A nonattainment designation under the CAA triggers additional planning requirements for states to show attainment of the NAAQS in the nonattainment areas by a statutory attainment date, as specified in the CAA. Since 2005, EPA had implemented the 1997 and 2006 PM2.5 NAAQS based on the general implementation provisions of subpart 1 of Part D of Title I of the CAA (subpart 1). On January 4, 2013, in Natural Resources Defense Council v. EPA (NRDC v. EPA), the D.C. Circuit determined that EPA should be implementing its PM2.5 pollution 1 EPA previously made a determination of attainment for the Liberty-Clairton Area for the 1997 PM2.5 NAAQS. 78 FR 63881 (October 25, 2013). PO 00000 Frm 00010 Fmt 4702 Sfmt 4702 22667 standard under additional CAA requirements than those EPA had been following in subpart 1 and remanded to EPA the ‘‘Final Clean Air Fine Particle Implementation Rule’’ (1997 PM2.5 Implementation Rule) (72 FR 20586, April 25, 2007) and the ‘‘Implementation of the New Source Review (NSR) Program for Particulate Matter Less than 2.5 Micrometers (PM2.5)’’ final rule (2008 NSR PM2.5 Rule).2 706 F.3d 428 (D.C. Cir. 2013). The D.C. Circuit found that the EPA erred in implementing the 1997 PM2.5 NAAQS solely pursuant to subpart 1, without consideration of the particulate matter specific provisions of subpart 4 of Part D of Title I of the CAA (subpart 4). Although the D.C. Circuit declined to establish a deadline for EPA’s response, EPA intends to respond promptly to the court’s remand and to promulgate new generally applicable implementation regulations for the PM2.5 NAAQS in accordance with the requirements of subparts 1 and 4. In the interim, however, states and EPA still need to proceed with implementation of the PM2.5 NAAQS in a timely and effective fashion in order to meet statutory obligations under the CAA and to assure the protection of public health intended by those NAAQS. While the regulatory provisions of EPA’s 1997 PM2.5 Implementation Rule do not explicitly apply to the 2006 24hour PM2.5 NAAQS, EPA’s underlying statutory interpretation has been the same for both standards. On March 2, 2012, EPA provided implementation guidance for the 2006 24-hour PM2.5 NAAQS which reaffirmed and continued the framework and policy approaches of the 1997 PM2.5 Implementation Rule.3 Thus, EPA believes that the Clean Data Policy provisions within the 1997 PM2.5 Implementation Rule are also applicable to the 2006 24-hour PM2.5 NAAQS. See 78 FR 49403 (August 14, 2013) (proposed determination that the Pittsburgh Area attained the 2006 24hour PM2.5 NAAQS which discussed the application of the 1997 PM2.5 Implementation Rule’s Clean Data Policy provisions to a determination of attainment for the 2006 standard). In addition, although the D.C. Circuit 2 EPA’s 2008 NSR PM 2.5 Rule relates to requirements for the NSR permitting program required by parts C and D of title I of the CAA. The details and provisions of the 2008 NSR PM2.5 Rule are not relevant to this proposed rulemaking. 3 EPA subsequently withdrew the implementation guidance on June 6, 2013 subsequent to the D.C. Circuit’s decision in NRDC v. EPA. EPA’s June 6, 2013 withdrawal memorandum is available at https://www.epa.gov/ttn/naaqs/pm/pdfs/ implementationguidancewithdrawmemo.pdf. E:\FR\FM\23APP1.SGM 23APP1 22668 Federal Register / Vol. 80, No. 78 / Thursday, April 23, 2015 / Proposed Rules mstockstill on DSK4VPTVN1PROD with PROPOSALS remanded the 1997 PM2.5 Implementation Rule to EPA, the D.C. Circuit’s decision in NRDC v. EPA related to EPA’s use of subpart 1 for CAA Part D requirements instead of subpart 1 and subpart 4, and the decision did not cast doubt on EPA’s interpretation of certain statutory provisions underlying the Clean Data Policy nor cast any doubt on EPA’s Clean Data Policy interpretation in the 1997 PM2.5 Implementation Rule. See NRDC v. EPA, 706 F.3d 428. The statutory provisions in subpart 4 require EPA, among other things, to classify nonattainment areas for the PM2.5 NAAQS based on the severity of their pollution problem. Under EPA’s prior approach to implementing the 1997 and 2006 PM2.5 standards according to subpart 1, EPA was not required to, and thus did not, identify any classifications for areas designated nonattainment. In contrast, subpart 4 of the CAA, at section 188, provides that all areas designated nonattainment are initially classified ‘‘by operation of law’’ as ‘‘Moderate’’ nonattainment areas, and they remain classified as Moderate nonattainment areas unless and until EPA later reclassifies them as Serious nonattainment areas or EPA determines that an area has not attained the PM2.5 NAAQS by the area’s applicable attainment date. On April 25, 2014, EPA finalized a rule identifying the classification of all PM2.5 areas currently designated nonattainment for the 1997 and 2006 PM2.5 NAAQS as ‘‘Moderate,’’ consistent with subpart 4 of the CAA. See 79 FR 31566 (June 2, 2014). Consequently, the Liberty-Clairton Area was classified as Moderate for the 2006 24-hour PM2.5 NAAQS. B. Determination of Attainment of the 2006 24-Hour NAAQS Under section 188(c)(1) of the CAA, a Moderate nonattainment area shall attain the PM2.5 NAAQS as expeditiously as practicable but no later than the end of the sixth calendar year after the area’s designation to nonattainment. Because the designation of nonattainment areas for the 2006 24hour PM2.5 NAAQS became effective on December 14, 2009, the presumptive sixth year attainment date for Moderate nonattainment areas would be no later than December 2015. To determine attainment with a NAAQS, EPA commonly uses three calendar years of complete air quality data available for the nonattainment area. The criteria for determining if an area is attaining the 2006 24-hour PM2.5 NAAQS are set out in 40 CFR 50.13 and appendix N. In summary, the 2006 24hour PM2.5 NAAQS is met when the 24- VerDate Sep<11>2014 15:57 Apr 22, 2015 Jkt 235001 hour design value is less than or equal to 35 mg/m3. Three years of valid annual 98th percentile 24-hour average PM2.5 concentration values are required to produce a valid 24-hour PM2.5 design value. A year meets data completeness requirements when at least 75 percent of the scheduled sampling days for each quarter have valid data. C. EPA’s Clean Data Policy Under EPA’s longstanding Clean Data Policy interpretation, a determination that a nonattainment area has attained the NAAQS suspends the state’s obligation to submit attainment-related planning requirements of the CAA for so long as the area continues to attain the standard.4 These include requirements to submit an attainment demonstration, RFP, RACM, and contingency measures, because the purpose of these provisions is to help reach attainment, a goal which has already been achieved. EPA incorporated its Clean Data Policy interpretation in both its 8-Hour Ozone Implementation Rule in 40 CFR 51.918 and in its 1997 PM2.5 Implementation Rule in 40 CFR 51.1004(c). See 72 FR 20585, 20665 (April 25, 2007). While the D.C. Circuit in its January 4, 2013 decision remanded the 1997 PM2.5 Implementation Rule, the Court did not address the merits of that regulation regarding our Clean Data Policy in 40 CFR 51.1004(c), nor cast any doubt on EPA’s existing interpretation of the statutory provisions for the Clean Data Policy. In this section of the proposed rulemaking action, EPA is addressing the effect of a final determination of attainment under the Clean Data Policy for the Liberty-Clairton Area, as a moderate nonattainment area under subpart 4. 1. Background on Clean Data Policy Over the past two decades, EPA has consistently applied its ‘‘Clean Data Policy’’ interpretation to attainmentrelated provisions of subparts 1, 2 and 4. The Clean Data Policy is the subject of several EPA memoranda such as the Seitz Memorandum and regulations. In addition, numerous individual rulemakings published in the Federal 4 For an EPA memorandum discussing interpretation that three years of data showing attainment of a NAAQS suspends requirements to submit certain attainment plan SIP requirements including those in section 172 of the CAA, see Reasonable Further Progress, Attainment Demonstration, and Related Requirements for Ozone Nonattainment Areas Meeting the Ozone National Ambient Air Quality Standard, EPA Memorandum from John S. Seitz, Director, Office of Air Quality Planning Standards, May 10, 1995 (Seitz Memorandum), located at https:// www.epa.gov/ttn/caaa/t1/memoranda/clean15.pdf. PO 00000 Frm 00011 Fmt 4702 Sfmt 4702 Register have applied the interpretation to a spectrum of NAAQS, including the 1-hour and 1997 ozone, coarse particulate matter (PM10), PM2.5, carbon monoxide (CO) and lead (Pb) standards. The D.C. Circuit has upheld the Clean Data Policy interpretation as embodied in EPA’s 1997 8-Hour Ozone Implementation Rule, 40 CFR 51.918.5 NRDC v. EPA, 571 F. 3d 1245 (D.C. Cir. 2009). Other U.S. Courts of Appeals that have considered and reviewed EPA’s Clean Data Policy interpretation have upheld it and the rulemakings applying EPA’s interpretation. Sierra Club v. EPA, 99 F.3d 1551 (10th Cir. 1996); Sierra Club v. EPA, 375 F. 3d 537 (7th Cir. 2004); Our Children’s Earth Foundation v. EPA, N. 04–73032 (9th Cir. June 28, 2005) (memorandum opinion); and Latino Issues Forum, v. EPA, Nos. 06–75831 and 08–71238 (9th Cir.), Memorandum Opinion, March 2, 2009. In light of the January 4, 2013 D.C. Circuit decision in NRDC v. EPA, EPA’s Clean Data Policy interpretation under subpart 4 is set forth here, for the purpose of identifying the effects of a determination of attainment for the 2006 24-hour PM2.5 NAAQS for the LibertyClairton Area. EPA has previously articulated its Clean Data Policy interpretation under subpart 4 in implementing the PM10 standard. See, e.g., 75 FR 27944 (May 19, 2010) (determination of attainment of the PM10 standard in Coso Junction, California); 71 FR 6352 (February 8, 2006) (Ajo, Arizona Area); 71 FR 13021 (March 14, 2006) (Yuma, Arizona Area); 71 FR 40023 (July 14, 2006) (Weirton, West Virginia Area); 71 FR 44920 (August 8, 2006) (Rillito, Arizona Area); 71 FR 63642 (October 30, 2006) (San Joaquin Valley, California Area); 72 FR 14422 (March 28, 2007) (Miami, Arizona Area). EPA has recently articulated as well its Clean Data Policy interpretation under subpart 4 in implementing the PM2.5 standard, including specifically the 2006 24-hour PM2.5 NAAQS. See 79 FR 25014 (May 2, 2014) (determination of attainment of the 2006 24-hour PM2.5 NAAQS in Pittsburgh-Beaver Valley Area, Pennsylvania) and 78 FR 63881 (October 25, 2013) (determination of attainment of the 1997 annual PM2.5 standard in Liberty-Clairton Area, Pennsylvania). Thus, EPA has established that, under subpart 4, an attainment determination suspends the obligations to submit an attainment 5 ‘‘EPA’s Final Rule to implement the 8-Hour Ozone National Ambient Air Quality StandardPhase 2 (Phase 2 Final Rule).’’ See 70 FR 71612, 71645–46 (November 29, 2005). E:\FR\FM\23APP1.SGM 23APP1 Federal Register / Vol. 80, No. 78 / Thursday, April 23, 2015 / Proposed Rules demonstration, RACM, RFP contingency measures, and other measures related to attainment. mstockstill on DSK4VPTVN1PROD with PROPOSALS 2. Application of the Clean Data Policy to Attainment-Related Provisions of Subpart 4 EPA initially set forth at length its rationale for applying the Clean Data Policy to PM10 under subpart 4 in EPA’s proposed and final rulemaking actions determining that the San Joaquin Valley nonattainment area attained the PM10 standard. The Ninth Circuit upheld EPA’s final rulemaking, and specifically EPA’s Clean Data Policy, in the context of subpart 4. Latino Issues Forum v. EPA, supra. Nos. 06–75831 and 08– 71238 (9th Cir.), Memorandum Opinion, March 2, 2009. In rejecting the petitioner’s challenge to the Clean Data Policy under subpart 4 for PM10, the Ninth Circuit stated, ‘‘As the EPA explained, if an area is in compliance with PM10 standards, then further progress for the purpose of ensuring attainment is not necessary.’’ The general requirements of subpart 1 apply in conjunction with the more specific requirements of subpart 4, to the extent they are not superseded or subsumed by the subpart 4 requirements. Subpart 1 contains general air quality planning requirements for areas designated as nonattainment. See section 172(c). Subpart 4, itself, contains specific planning and scheduling requirements for PM10 nonattainment areas, and under the Court’s January 4, 2013 decision in NRDC v. EPA, these same statutory requirements also apply for PM2.5 nonattainment areas. EPA has longstanding general guidance that interprets the 1990 amendments to the CAA, making recommendations to states for meeting the statutory requirements for SIPs for nonattainment areas. See ‘‘State Implementation Plans; General Preamble for the Implementation of Title I of the Clean Air Act Amendments of 1990,’’ (57 FR 13498, April 16, 1992) (General Preamble). In the General Preamble, EPA discussed the relationship of subpart 1 and subpart 4 SIP requirements, and pointed out that subpart 1 requirements were to an extent ‘‘subsumed by, or integrally related to, the more specific PM10 requirements.’’ Id. These subpart 1 requirements include, among other things, provisions for attainment demonstrations, RACM, RFP, emissions inventories, and contingency measures. EPA has long interpreted the provisions of subpart 1 (sections 171 and 172) as not requiring the submission of RFP for an area already VerDate Sep<11>2014 15:57 Apr 22, 2015 Jkt 235001 attaining the ozone NAAQS.6 For an area that is attaining, showing that the state will make RFP towards attainment ‘‘will, therefore, have no meaning at that point.’’ Id. See also 71 FR 40952 and 71 FR 63642 (proposed and final determination of attainment for San Joaquin Valley); 75 FR 13710 and 75 FR 27944 (proposed and final determination of attainment for Coso Junction). Section 189(c)(1) of subpart 4 states that: Plan revisions demonstrating attainment submitted to the Administrator for approval under this subpart shall contain quantitative milestones which are to be achieved every 3 years until the area is redesignated attainment and which demonstrate reasonable further progress, as defined in section [section 171(1)] of this title, toward attainment by the applicable date. With respect to RFP, section 171(1) states that, for purposes of part D, RFP ‘‘means such annual incremental reductions in emissions of the relevant air pollutant as are required by this part or may reasonably be required by the Administrator for the purpose of ensuring attainment of the applicable NAAQS by the applicable date.’’ Thus, whether dealing with the general RFP requirement of section 172(c)(2), the ozone-specific RFP requirements of sections 182(b) and (c), or the specific RFP requirements for PM10 areas of part D, subpart 4, section 189(c)(1), the stated purpose of RFP is to ensure attainment by the applicable attainment date. Although section 189(c) states that revisions shall contain milestones which are to be achieved until the area is redesignated to attainment, such milestones are designed to show reasonable further progress ‘‘toward attainment by the applicable attainment date,’’ as defined by section 171. Thus, it is clear that once the area has attained the standard, no further milestones are necessary or meaningful. This interpretation is supported by language in section 189(c)(3), which mandates that a state that fails to achieve a milestone must submit a plan that assures that the state will achieve the next milestone or attain the NAAQS if there is no next milestone. Section 189(c)(3) assumes that the requirement to submit and achieve milestones does not continue after attainment of the NAAQS. In the General Preamble, EPA noted with respect to section 189(c) that the purpose of the milestone requirement ‘‘is ‘to provide for emission reductions adequate to achieve the standards by the 6 See PO 00000 the Seitz Memorandum. Frm 00012 Fmt 4702 Sfmt 4702 22669 applicable attainment date’ (H.R. Rep.No. 490 101st Cong., 2d Sess. 267 (1990)).’’ (57 FR 13539, April 16, 1992). If an area has in fact attained the standard, the stated purpose of the RFP requirement will have already been fulfilled.7 Similarly, the requirements of section 189(c)(2) with respect to milestones no longer apply so long as an area has attained the standard. Section 189(c)(2) provides in relevant part that: Not later than 90 days after the date on which a milestone applicable to the area occurs, each State in which all or part of such area is located shall submit to the Administrator a demonstration . . . that the milestone has been met. Where the area has attained the standard and there are no further milestones, there is no further requirement to make a submission showing that such milestones have been met. This is consistent with the position that EPA took with respect to the general RFP requirement of section 172(c)(2) in the April 16, 1992 General Preamble and also in the Seitz Memorandum with respect to the requirements of section 182(b) and (c). In the Seitz Memorandum, EPA also noted that section 182(g), the milestone requirement of subpart 2, which is analogous to provisions in section 189(c), is suspended upon a determination that an area has attained. The Seitz Memorandum, in citing additional provisions related to attainment demonstration and RFP requirements, stated: Inasmuch as each of these requirements is linked with the attainment demonstration or RFP requirements of section 182(b)(1) or 182(c)(2), if an area is not subject to the requirement to submit the underlying attainment demonstration or RFP plan, it need not submit the related SIP submission either. See Seitz Memorandum at 5. 7 Thus, EPA believes that it is a distinction without a difference that section 189(c)(1) speaks of the RFP requirement as one to be achieved until an area is ‘‘redesignated attainment,’’ as opposed to section 172(c)(2), which is silent on the period to which the requirement pertains, or the ozone nonattainment area RFP requirements in sections 182(b)(1) or 182(c)(2), which refer to the RFP requirements as applying until the ‘‘attainment date,’’ since section 189(c)(1) defines RFP by reference to section 171(1) of the CAA. Reference to section 171(1) clarifies that, as with the general RFP requirements in section 172(c)(2) and the ozone-specific requirements of section 182(b)(1) and 182(c)(2), the PM-specific requirements may only be required ‘‘for the purpose of ensuring attainment of the applicable national ambient air quality standard by the applicable date.’’ 42 U.S.C. 7501(1). As discussed in the text of this rulemaking, EPA interprets the RFP requirements, in light of the definition of RFP in section 171(1), and incorporated in section 189(c)(1), to be a requirement that no longer applies once the standard has been attained. E:\FR\FM\23APP1.SGM 23APP1 22670 Federal Register / Vol. 80, No. 78 / Thursday, April 23, 2015 / Proposed Rules With respect to the attainment demonstration requirements of section 172(c) and section 189(a)(1)(B) in subpart 4, an analogous rationale leads to the same result. Section 189(a)(1)(B) requires that the plan provide for ‘‘a demonstration (including air quality modeling) that the [SIP] will provide for attainment by the applicable attainment date . . . ’’ As with the RFP requirements, if an area is already monitoring attainment of the standard, EPA believes there is no need for an area to make a further submission containing additional measures to achieve attainment. This is also consistent with the interpretation of the section 172(c) requirements provided by EPA in the General Preamble, and the section 182(b) and (c) requirements set forth in the Seitz Memorandum. As EPA stated in the General Preamble, no other measures to provide for attainment would be needed by areas seeking redesignation to attainment since ‘‘attainment will have been reached.’’ 57 FR 13564. Other SIP submission requirements are linked with these attainment demonstration and RFP requirements, and similar reasoning applies to them. These requirements include the contingency measure requirements of section 172(c)(9). EPA has interpreted the contingency measure requirements of section 172(c)(9) 8 as no longer applying when an area has attained the standard because those ‘‘contingency measures are directed at ensuring RFP and attainment by the applicable date.’’ See 57 FR 13564 and Seitz Memorandum, pp. 5–6. Section 172(c)(9) provides that SIPs in nonattainment areas: shall provide for the implementation of specific measures to be undertaken if the area fails to make reasonable further progress, or to attain the [NAAQS] by the attainment date applicable under this part. Such measures shall be included in the plan revision as contingency measures to take effect in any such case without further action by the State or [EPA]. The contingency measure requirement is inextricably tied to the reasonable further progress and attainment demonstration requirements. Contingency measures are implemented if reasonable further progress targets are not achieved, or if attainment is not realized by the attainment date. Where an area has already achieved attainment by the attainment date, it has no need to rely on contingency measures to come into attainment or to make further progress to attainment. As EPA stated in the General Preamble: ‘‘The section 172(c)(9) requirements for contingency measures are directed at ensuring RFP and attainment by the applicable date.’’ See 57 FR 13564. Thus these requirements no longer apply when an area has attained the standard. Both sections 172(c)(1) and 189(a)(1)(C) require ‘‘provisions to assure that reasonably available control measures’’ (i.e., RACM) are implemented in a nonattainment area. The General Preamble, (57 FR at 13560, April 16, 1992), states that EPA interprets section 172(c)(1) so that RACM requirements are a ‘‘component’’ of an area’s attainment demonstration. Thus, for the same reason the attainment demonstration no longer applies by its own terms, the requirement for RACM no longer applies. EPA has consistently interpreted this provision to require only implementation of potential RACM measures that could contribute to reasonable further progress or to attainment. General Preamble, 57 FR 13498. Thus, where an area is already attaining the standard, no additional RACM measures are required.9 EPA is interpreting section 189(a)(1)(C) consistent with its interpretation of section 172(c)(1). The suspension of the obligations to submit SIP revisions concerning these RFP, attainment demonstration, RACM, contingency measures and other related requirements exists only for as long as the area continues to monitor attainment of the standard. If EPA determines, after notice-and-comment rulemaking, that the area has monitored a violation of the NAAQS, the basis for the requirements being suspended would no longer exist. In that case, the area would again be subject to a requirement to submit the pertinent SIP revision or revisions and would need to address those requirements. Thus, a final determination that the area need not submit one of the pertinent SIP submittals amounts to no more than a suspension of the requirements for so long as the area continues to attain the standard. Only if and when EPA redesignates the area to attainment would the area be relieved of these submission obligations. Attainment determinations under the Clean Data Policy do not shield an area from obligations unrelated to attainment in the area, such as provisions to address nonattainment area permitting requirements, emission inventory requirements, and pollution transport. See 79 FR 77911 (December 29, 2014) (discussion of remaining attainment plan SIP requirements in CAA section 172(c) in the final determination of attainment rulemaking for the Lyons, Pennsylvania lead nonattainment area). For this proposed rulemaking action, EPA has evaluated PM2.5 air quality data to propose to determine that the LibertyClairton Area is attaining the 2006 24hour PM2.5 NAAQS. III. EPA’s Evaluation of the LibertyClairton PM2.5 Air Quality Data The Allegheny County Health Department (ACHD) submitted qualityassured and certified air quality monitoring data into the EPA Air Quality System (AQS) database for the 2012–2014 monitoring period. There are two PM2.5 monitors in the LibertyClairton Area—one in Liberty Borough and one in the City of Clairton. Both monitors had complete data for all quarters in the calendar years 2012 through 2014. This proposed determination of attainment for the Liberty-Clairton Area is based on EPA’s evaluation of qualitycontrolled, quality assured, certified PM2.5 air quality data for 2012–2014, as summarized in Table 1. TABLE 1—2012–2014 LIBERTY-CLAIRTON AREA DAILY PM2.5 MONITORING DATA & COMPLETENESS 98th percentile mstockstill on DSK4VPTVN1PROD with PROPOSALS Monitor name AQS site ID 2012 Liberty ..................... Clairton .................... 42–003–0064 42–003–3007 8 See Liberty Borough ...... City of Clairton ....... section 182(c)(9) for ozone. interpretation that the statute requires implementation only of RACM measures that would 9 EPA’s VerDate Sep<11>2014 15:57 Apr 22, 2015 Jkt 235001 2012–2014 Design value (μg/m3) Location 2013 42.5 19.2 2014 31.1 17.1 advance attainment was upheld by the United States Court of Appeals for the Fifth Circuit in Sierra Club v. EPA, 314 F.3d 735, 743–745 (5th Cir. PO 00000 Frm 00013 Fmt 4702 Sfmt 4702 32.2 31.2 35 23 Complete data? Yes. Yes. 2002) and by the United States Court of Appeals for the D.C. Circuit in Sierra Club v. EPA, 294 F.3d 155, 162–163 (D.C. Cir. 2002). E:\FR\FM\23APP1.SGM 23APP1 Federal Register / Vol. 80, No. 78 / Thursday, April 23, 2015 / Proposed Rules mstockstill on DSK4VPTVN1PROD with PROPOSALS As shown, the design values for both monitors in the Liberty-Clairton Area are 35 mg/m3 or less for the 2012–2014 monitoring period. Thus, in accordance with EPA’s requirements in 40 CFR part 50, the monitors in the Liberty-Clairton Area are showing attainment of the 2006 24-hour PM2.5 NAAQS, based on the 2012–2014 quality-assured and certified air quality data, the most recent three years of data for the Area. Based on our review of the LibertyClairton Area’s PM2.5 ambient air monitoring data, EPA proposes to determine that the Liberty-Clairton Area has attained the 2006 24-hour PM2.5 NAAQS during the 2012–2014 monitoring period, in accordance with 40 CFR part 50. Additional information on air quality data for the LibertyClairton Area can be found in the technical support document (TSD) prepared for this proposed action. IV. Proposed Actions EPA is proposing to determine, based on the most recent three years of complete quality-assured, and certified data for 2012–2014 meeting the requirements of 40 CFR part 50, appendix N, that the Liberty-Clairton Area is currently attaining the 2006 24hour PM2.5 NAAQS. In accordance with our Clean Data Policy, based upon this proposed determination of attainment, EPA also proposes to determine that the obligation to submit the following attainment-related planning requirements for the Liberty-Clairton Area are not applicable for so long as the Area continues to monitor attainment for the 2006 24-hour PM2.5 NAAQS: Subpart 4 obligations to provide an attainment demonstration pursuant to section 189(a)(1)(B), the RACM provisions of section 189(a)(1)(C), the RFP provisions of section 189(c), and related attainment demonstration, RACM, RFP, and contingency measure provisions requirements of subpart 1, section 172. If in the future, EPA determines after notice-and-comment rulemaking that the Liberty-Clairton Area again violates the 2006 24-hour PM2.5 NAAQS, the basis for suspending these requirements would no longer exist. This proposed rulemaking action, if finalized, would not constitute a redesignation to attainment under CAA section 107(d)(3). In addition, this determination, if finalized, does not relieve the requirement for Pennsylvania to submit for the LibertyClairton Area an emissions inventory as required by CAA section 172(c)(3) or to have a nonattainment area permitting program pursuant to CAA sections 172(c)(5) and 173. EPA is soliciting VerDate Sep<11>2014 15:57 Apr 22, 2015 Jkt 235001 public comments on the issues discussed in this document. These comments will be considered before taking final action. V. Statutory and Executive Order Reviews Under the CAA, the Administrator is required to approve a SIP submission that complies with the provisions of the CAA and applicable Federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a). Thus, in reviewing SIP submissions, EPA’s role is to approve state choices, provided that they meet the criteria of the CAA. Accordingly, this action merely approves state law as meeting Federal requirements and does not impose additional requirements beyond those imposed by state law. For that reason, this proposed action: • Is not a ‘‘significant regulatory action’’ subject to review by the Office of Management and Budget under Executive Order 12866 (58 FR 51735, October 4, 1993); • Does not impose an information collection burden under the provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.); • Is certified as not having a significant economic impact on a substantial number of small entities under the Regulatory Flexibility Act (5 U.S.C. 601 et seq.); • Does not contain any unfunded mandate or significantly or uniquely affect small governments, as described in the Unfunded Mandates Reform Act of 1995 (Pub. L. 104–4); • Does not have Federalism implications as specified in Executive Order 13132 (64 FR 43255, August 10, 1999); • Is not an economically significant regulatory action based on health or safety risks subject to Executive Order 13045 (62 FR 19885, April 23, 1997); • Is not a significant regulatory action subject to Executive Order 13211 (66 FR 28355, May 22, 2001); • Is not subject to requirements of Section 12(d) of the National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272 note) because application of those requirements would be inconsistent with the CAA; and • Does not provide EPA with the discretionary authority to address, as appropriate, disproportionate human health or environmental effects, using practicable and legally permissible methods, under Executive Order 12898 (59 FR 7629, February 16, 1994). In addition, this proposed rule, proposing to determine that the LibertyClairton Area has attained the 2006 24hour PM2.5 NAAQS, does not have tribal implications as specified by Executive PO 00000 Frm 00014 Fmt 4702 Sfmt 4702 22671 Order 13175 (65 FR 67249, November 9, 2000), because the SIP is not approved to apply in Indian country located in the State, and EPA notes that it will not impose substantial direct costs on tribal governments or preempt tribal law. List of Subjects in 40 CFR Part 52 Environmental protection, Air pollution control, Incorporation by reference, Intergovernmental relations, Particulate matter, Reporting and recordkeeping requirements. Authority: 42 U.S.C. 7401 et seq. Dated: April 10, 2015. William C. Early, Acting Regional Administrator, Region III. [FR Doc. 2015–09416 Filed 4–22–15; 8:45 am] BILLING CODE 6560–50–P ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 52 [EPA–R09–OAR–2014–0924; FRL–9924–78– Region 9] Revisions to the California State Implementation Plan, Feather River Air Quality Management District Environmental Protection Agency (EPA). ACTION: Proposed rule. AGENCY: The Environmental Protection Agency (EPA) is proposing to approve revisions to the Feather River Air Quality Management District (FRAQMD) portion of the California State Implementation Plan (SIP). These revisions concern volatile organic compound (VOC), oxides of nitrogen (NOx), and particulate matter (PM) emissions from rice straw burning, boilers, steam generators, process heaters, stationary internal combustion engines, surfacing preparation and cleanup solvents, and wood product coating operations. We are proposing to approve local rules to regulate these emission sources under the Clean Air Act (CAA or the Act). DATES: Any comments on this proposal must arrive by May 26, 2015. ADDRESSES: Submit comments, identified by docket number EPA–R09– OAR–2014–0924, by one of the following methods: 1. Federal eRulemaking Portal: www.regulations.gov. Follow the on-line instructions. 2. Email: steckel.andrew@epa.gov. 3. Mail or deliver: Andrew Steckel (Air–4), U.S. Environmental Protection Agency Region IX, 75 Hawthorne Street, San Francisco, CA 94105–3901. SUMMARY: E:\FR\FM\23APP1.SGM 23APP1

Agencies

ENVIRONMENTAL PROTECTION AGENCY

[Federal Register Volume 80, Number 78 (Thursday, April 23, 2015)]
[Proposed Rules]
[Pages 22666-22671]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-09416]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R03-OAR-2015-0175; FRL-9926-70-Region 3]

Approval and Promulgation of Air Quality Implementation Plans;
Pennsylvania; Determination of Attainment of the 2006 24-Hour Fine
Particulate Standard for the Liberty-Clairton Nonattainment Area

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The Environmental Protection Agency (EPA) is proposing to make
a determination of attainment regarding the Liberty-Clairton,
Pennsylvania 2006 24-hour fine particulate matter (PM2.5)
nonattainment area (hereafter ``Liberty-Clairton Area'' or ``the
Area''). EPA is proposing to determine that the Liberty-Clairton Area
has attained the 2006 24-hour PM2.5 National Ambient Air
Quality Standard (NAAQS), based upon quality-assured, quality-
controlled and certified ambient air monitoring data for the calendar
years 2012-2014. If EPA finalizes this ``clean data determination,''
the requirement for the Liberty-Clairton Area to submit an attainment
demonstration, reasonably available control measures (RACM), reasonable
further progress (RFP), and contingency measures related to attainment
of the 2006 24-hour PM2.5 NAAQS would be suspended for so
long as the Area continues to attain the 2006 24-hour PM2.5
NAAQS. If finalized, this determination will not constitute a
redesignation to attainment. This proposed action is being taken under
the Clean Air Act (CAA).

DATES: Written comments must be received on or before May 26, 2015.

ADDRESSES: Submit your comments, identified by Docket ID Number EPA-
R03-OAR-2015-0175 by one of the following methods:
A. www.regulations.gov. Follow the on-line instructions for
submitting comments.
B. Email: powers.marilyn@epa.gov.
C. Mail: EPA-R03-OAR-2015-0175, Marilyn Powers, Acting Associate
Director, Office of Air Program Planning, Mailcode 3AP30, U.S.
Environmental Protection Agency, Region III, 1650 Arch Street,
Philadelphia, Pennsylvania 19103.
D. Hand Delivery: At the previously-listed EPA Region III address.
Such deliveries are only accepted during the Docket's normal hours of
operation, and special arrangements should be made for deliveries of
boxed information.
Instructions: Direct your comments to Docket ID No. EPA-R03-OAR-
2015-0175. EPA's policy is that all comments received will be included
in the public docket without change, and may be made available online
at www.regulations.gov, including any personal information provided,
unless the comment includes information claimed to be Confidential
Business Information (CBI) or other information whose disclosure is
restricted by statute. Do not submit information that you consider to
be CBI or otherwise protected through www.regulations.gov or email. The
www.regulations.gov Web site is an ``anonymous access'' system, which
means EPA will not know your identity or contact information unless you
provide it in the body of your comment. If you send an email comment
directly to EPA without going through www.regulations.gov, your email
address will be automatically captured and included as part of the
comment that is placed in the public docket and made available on the
Internet. If you submit an electronic comment, EPA recommends that you
include your name and other contact information in the body of your
comment and with any disk or CD-ROM you submit. If EPA cannot read your
comment due to technical difficulties and cannot contact you for
clarification, EPA may not be able to consider your comment. Electronic
files should avoid the use of special characters, any form of
encryption, and be free of any defects or viruses.
Docket: All documents in the electronic docket are listed in the
www.regulations.gov index. Although listed in the index, some
information is not publicly available, i.e., CBI or other information
whose disclosure is restricted by statute. Certain other material, such
as copyrighted material, is not placed on the Internet and will be
publicly available only in hard copy form. Publicly available docket
materials are available either electronically in www.regulations.gov or
in hard copy during normal business hours at the Air Protection
Division, U.S. Environmental Protection Agency, Region III, 1650 Arch
Street, Philadelphia, Pennsylvania 19103.

FOR FURTHER INFORMATION CONTACT: Emlyn V[eacute]lez-Rosa, (215) 814-
2038, or by email at velez-rosa.emlyn@epa.gov.

SUPPLEMENTARY INFORMATION:

I. Summary of Proposed Actions

EPA is proposing to make a determination that the Liberty-Clairton

[[Page 22667]]

Area has attained the 2006 24-hour PM2.5 NAAQS. This
proposed ``clean data determination'' is based upon quality assured and
certified ambient air monitoring data that show the area has monitored
attainment of the 2006 24-hour PM2.5 NAAQS for the 2012-2014
monitoring period. If EPA finalizes this determination, the requirement
for the Liberty-Clairton Area to submit an attainment demonstration,
RACM, RFP, and contingency measures related to attainment of the 2006
24-hour PM2.5 NAAQS shall be suspended for so long as the
area continues to attain that NAAQS. However, if finalized, this
determination of attainment will not suspend Pennsylvania's other
required statutory obligations including requirements for an emissions
inventory and preconstruction permitting program for the Liberty-
Clairton Area for the 2006 24-hour PM2.5 NAAQS. This final
determination will not constitute a redesignation to attainment. The
Liberty-Clairton Area will remain designated nonattainment for the 2006
24-hour PM2.5 NAAQS until such time as EPA determines that
the Liberty-Clairton Area meets the CAA requirements for redesignation
to attainment, including an approved maintenance plan under section
175A.

II. Background

A. PM2.5 NAAQS History

On July 16, 1997, EPA established an annual PM2.5 NAAQS
at 15.0 micrograms per cubic meter ([mu]g/m\3\) (hereafter referred to
as ``the 1997 annual PM2.5 NAAQS''), based on a 3-year
average of annual mean PM2.5 concentrations (62 FR 38652,
July 18, 1997). At that time, EPA also established a 24-hour standard
of 65 [mu]g/m\3\ (hereafter referred to as ``the 1997 24-hour
PM2.5 NAAQS''). See 40 CFR 50.7. The 1997 PM2.5
NAAQS were based on significant evidence and numerous health studies
demonstrating that serious health effects are associated with exposures
to particulate matter.
The process for designating areas following promulgation of a new
or revised NAAQS is contained in section 107(d)(1) of the CAA. On
January 5, 2005 (70 FR 944), EPA published its nonattainment area
designations for the 1997 annual PM2.5 NAAQS based upon air
quality monitoring data for calendar years 2001-2003. These
designations, effective on April 5, 2005, included the Liberty-Clairton
Area as a nonattainment area for the 1997 annual PM2.5
NAAQS. The Liberty-Clairton Area is comprised of the following portion
of Allegheny County: the boroughs of Lincoln, Glassport, Liberty, and
Port Vue and the City of Clairton. See 40 CFR 81.339 (Pennsylvania).
The Liberty-Clairton Area is surrounded by, but separate and distinct
from, the Pittsburgh-Beaver Valley PM2.5 nonattainment
area.\1\
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\1\ EPA previously made a determination of attainment for the
Liberty-Clairton Area for the 1997 PM2.5 NAAQS. 78 FR
63881 (October 25, 2013).
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On September 21, 2006, EPA retained the 1997 annual
PM2.5 NAAQS at 15.0 [mu]g/m\3\ (hereby ``the 2006 annual
PM2.5 NAAQS'') based on a 3-year average of annual mean
PM2.5 concentrations, and promulgated a new 24-hour standard
of 35 [mu]g/m\3\ based on a 3-year average of the 98th percentile of
24-hour concentrations (71 FR 61144, October 17, 2006). The revised
2006 24-hour PM2.5 standard (hereafter ``the 2006 24-hour
PM2.5 NAAQS'') became effective on December 18, 2006. See 40
CFR 50.13. The more stringent 2006 24-hour PM2.5 NAAQS is
based on significant evidence and numerous health studies demonstrating
that serious health effects are associated with short-term exposures to
PM2.5 at this level.
Many petitioners challenged aspects of EPA's 2006 revisions to the
PM2.5 NAAQS. See American Farm Bureau Federation and
National Pork Producers Council, et al. v. EPA, 559 F.3d 512 (D.C. Cir.
2009). As a result of this challenge, the U.S. Court of Appeals for the
District of Columbia Circuit (D.C. Circuit) remanded the 2006 annual
PM2.5 NAAQS to EPA for further proceedings. The 2006 24-hour
PM2.5 NAAQS was not affected by the remand and remains in
effect.
On November 13, 2009, EPA published designations for the 2006 24-
hour PM2.5 NAAQS (74 FR 58688), which became effective on
December 14, 2009. In that action, EPA designated the Liberty-Clairton
Area as nonattainment for the 2006 24-hour PM2.5 NAAQS,
retaining the same geographical boundaries as for the 1997 annual
PM2.5 NAAQS.
A nonattainment designation under the CAA triggers additional
planning requirements for states to show attainment of the NAAQS in the
nonattainment areas by a statutory attainment date, as specified in the
CAA. Since 2005, EPA had implemented the 1997 and 2006 PM2.5
NAAQS based on the general implementation provisions of subpart 1 of
Part D of Title I of the CAA (subpart 1). On January 4, 2013, in
Natural Resources Defense Council v. EPA (NRDC v. EPA), the D.C.
Circuit determined that EPA should be implementing its PM2.5
pollution standard under additional CAA requirements than those EPA had
been following in subpart 1 and remanded to EPA the ``Final Clean Air
Fine Particle Implementation Rule'' (1997 PM2.5
Implementation Rule) (72 FR 20586, April 25, 2007) and the
``Implementation of the New Source Review (NSR) Program for Particulate
Matter Less than 2.5 Micrometers (PM2.5)'' final rule (2008
NSR PM2.5 Rule).\2\ 706 F.3d 428 (D.C. Cir. 2013). The D.C.
Circuit found that the EPA erred in implementing the 1997
PM2.5 NAAQS solely pursuant to subpart 1, without
consideration of the particulate matter specific provisions of subpart
4 of Part D of Title I of the CAA (subpart 4).
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\2\ EPA's 2008 NSR PM2.5 Rule relates to requirements
for the NSR permitting program required by parts C and D of title I
of the CAA. The details and provisions of the 2008 NSR
PM2.5 Rule are not relevant to this proposed rulemaking.
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Although the D.C. Circuit declined to establish a deadline for
EPA's response, EPA intends to respond promptly to the court's remand
and to promulgate new generally applicable implementation regulations
for the PM2.5 NAAQS in accordance with the requirements of
subparts 1 and 4. In the interim, however, states and EPA still need to
proceed with implementation of the PM2.5 NAAQS in a timely
and effective fashion in order to meet statutory obligations under the
CAA and to assure the protection of public health intended by those
NAAQS.
While the regulatory provisions of EPA's 1997 PM2.5
Implementation Rule do not explicitly apply to the 2006 24-hour
PM2.5 NAAQS, EPA's underlying statutory interpretation has
been the same for both standards. On March 2, 2012, EPA provided
implementation guidance for the 2006 24-hour PM2.5 NAAQS
which reaffirmed and continued the framework and policy approaches of
the 1997 PM2.5 Implementation Rule.\3\ Thus, EPA believes
that the Clean Data Policy provisions within the 1997 PM2.5
Implementation Rule are also applicable to the 2006 24-hour
PM2.5 NAAQS. See 78 FR 49403 (August 14, 2013) (proposed
determination that the Pittsburgh Area attained the 2006 24-hour
PM2.5 NAAQS which discussed the application of the 1997
PM2.5 Implementation Rule's Clean Data Policy provisions to
a determination of attainment for the 2006 standard). In addition,
although the D.C. Circuit

[[Page 22668]]

remanded the 1997 PM2.5 Implementation Rule to EPA, the D.C.
Circuit's decision in NRDC v. EPA related to EPA's use of subpart 1 for
CAA Part D requirements instead of subpart 1 and subpart 4, and the
decision did not cast doubt on EPA's interpretation of certain
statutory provisions underlying the Clean Data Policy nor cast any
doubt on EPA's Clean Data Policy interpretation in the 1997
PM2.5 Implementation Rule. See NRDC v. EPA, 706 F.3d 428.
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\3\ EPA subsequently withdrew the implementation guidance on
June 6, 2013 subsequent to the D.C. Circuit's decision in NRDC v.
EPA. EPA's June 6, 2013 withdrawal memorandum is available at https://www.epa.gov/ttn/naaqs/pm/pdfs/implementationguidancewithdrawmemo.pdf.
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The statutory provisions in subpart 4 require EPA, among other
things, to classify nonattainment areas for the PM2.5 NAAQS
based on the severity of their pollution problem. Under EPA's prior
approach to implementing the 1997 and 2006 PM2.5 standards
according to subpart 1, EPA was not required to, and thus did not,
identify any classifications for areas designated nonattainment. In
contrast, subpart 4 of the CAA, at section 188, provides that all areas
designated nonattainment are initially classified ``by operation of
law'' as ``Moderate'' nonattainment areas, and they remain classified
as Moderate nonattainment areas unless and until EPA later reclassifies
them as Serious nonattainment areas or EPA determines that an area has
not attained the PM2.5 NAAQS by the area's applicable
attainment date. On April 25, 2014, EPA finalized a rule identifying
the classification of all PM2.5 areas currently designated
nonattainment for the 1997 and 2006 PM2.5 NAAQS as
``Moderate,'' consistent with subpart 4 of the CAA. See 79 FR 31566
(June 2, 2014). Consequently, the Liberty-Clairton Area was classified
as Moderate for the 2006 24-hour PM2.5 NAAQS.

B. Determination of Attainment of the 2006 24-Hour NAAQS

Under section 188(c)(1) of the CAA, a Moderate nonattainment area
shall attain the PM2.5 NAAQS as expeditiously as practicable
but no later than the end of the sixth calendar year after the area's
designation to nonattainment. Because the designation of nonattainment
areas for the 2006 24-hour PM2.5 NAAQS became effective on
December 14, 2009, the presumptive sixth year attainment date for
Moderate nonattainment areas would be no later than December 2015.
To determine attainment with a NAAQS, EPA commonly uses three
calendar years of complete air quality data available for the
nonattainment area. The criteria for determining if an area is
attaining the 2006 24-hour PM2.5 NAAQS are set out in 40 CFR
50.13 and appendix N. In summary, the 2006 24-hour PM2.5
NAAQS is met when the 24-hour design value is less than or equal to 35
[mu]g/m\3\. Three years of valid annual 98th percentile 24-hour average
PM2.5 concentration values are required to produce a valid
24-hour PM2.5 design value. A year meets data completeness
requirements when at least 75 percent of the scheduled sampling days
for each quarter have valid data.

C. EPA's Clean Data Policy

Under EPA's longstanding Clean Data Policy interpretation, a
determination that a nonattainment area has attained the NAAQS suspends
the state's obligation to submit attainment-related planning
requirements of the CAA for so long as the area continues to attain the
standard.\4\ These include requirements to submit an attainment
demonstration, RFP, RACM, and contingency measures, because the purpose
of these provisions is to help reach attainment, a goal which has
already been achieved.
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\4\ For an EPA memorandum discussing interpretation that three
years of data showing attainment of a NAAQS suspends requirements to
submit certain attainment plan SIP requirements including those in
section 172 of the CAA, see Reasonable Further Progress, Attainment
Demonstration, and Related Requirements for Ozone Nonattainment
Areas Meeting the Ozone National Ambient Air Quality Standard, EPA
Memorandum from John S. Seitz, Director, Office of Air Quality
Planning Standards, May 10, 1995 (Seitz Memorandum), located at
https://www.epa.gov/ttn/caaa/t1/memoranda/clean15.pdf.
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EPA incorporated its Clean Data Policy interpretation in both its
8-Hour Ozone Implementation Rule in 40 CFR 51.918 and in its 1997
PM2.5 Implementation Rule in 40 CFR 51.1004(c). See 72 FR
20585, 20665 (April 25, 2007). While the D.C. Circuit in its January 4,
2013 decision remanded the 1997 PM2.5 Implementation Rule,
the Court did not address the merits of that regulation regarding our
Clean Data Policy in 40 CFR 51.1004(c), nor cast any doubt on EPA's
existing interpretation of the statutory provisions for the Clean Data
Policy. In this section of the proposed rulemaking action, EPA is
addressing the effect of a final determination of attainment under the
Clean Data Policy for the Liberty-Clairton Area, as a moderate
nonattainment area under subpart 4.
1. Background on Clean Data Policy
Over the past two decades, EPA has consistently applied its ``Clean
Data Policy'' interpretation to attainment-related provisions of
subparts 1, 2 and 4. The Clean Data Policy is the subject of several
EPA memoranda such as the Seitz Memorandum and regulations. In
addition, numerous individual rulemakings published in the Federal
Register have applied the interpretation to a spectrum of NAAQS,
including the 1-hour and 1997 ozone, coarse particulate matter
(PM10), PM2.5, carbon monoxide (CO) and lead (Pb)
standards. The D.C. Circuit has upheld the Clean Data Policy
interpretation as embodied in EPA's 1997 8-Hour Ozone Implementation
Rule, 40 CFR 51.918.\5\ NRDC v. EPA, 571 F. 3d 1245 (D.C. Cir. 2009).
Other U.S. Courts of Appeals that have considered and reviewed EPA's
Clean Data Policy interpretation have upheld it and the rulemakings
applying EPA's interpretation. Sierra Club v. EPA, 99 F.3d 1551 (10th
Cir. 1996); Sierra Club v. EPA, 375 F. 3d 537 (7th Cir. 2004); Our
Children's Earth Foundation v. EPA, N. 04-73032 (9th Cir. June 28,
2005) (memorandum opinion); and Latino Issues Forum, v. EPA, Nos. 06-
75831 and 08-71238 (9th Cir.), Memorandum Opinion, March 2, 2009.
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\5\ ``EPA's Final Rule to implement the 8-Hour Ozone National
Ambient Air Quality Standard-Phase 2 (Phase 2 Final Rule).'' See 70
FR 71612, 71645-46 (November 29, 2005).
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In light of the January 4, 2013 D.C. Circuit decision in NRDC v.
EPA, EPA's Clean Data Policy interpretation under subpart 4 is set
forth here, for the purpose of identifying the effects of a
determination of attainment for the 2006 24-hour PM2.5 NAAQS
for the Liberty-Clairton Area. EPA has previously articulated its Clean
Data Policy interpretation under subpart 4 in implementing the
PM10 standard. See, e.g., 75 FR 27944 (May 19, 2010)
(determination of attainment of the PM10 standard in Coso
Junction, California); 71 FR 6352 (February 8, 2006) (Ajo, Arizona
Area); 71 FR 13021 (March 14, 2006) (Yuma, Arizona Area); 71 FR 40023
(July 14, 2006) (Weirton, West Virginia Area); 71 FR 44920 (August 8,
2006) (Rillito, Arizona Area); 71 FR 63642 (October 30, 2006) (San
Joaquin Valley, California Area); 72 FR 14422 (March 28, 2007) (Miami,
Arizona Area).
EPA has recently articulated as well its Clean Data Policy
interpretation under subpart 4 in implementing the PM2.5
standard, including specifically the 2006 24-hour PM2.5
NAAQS. See 79 FR 25014 (May 2, 2014) (determination of attainment of
the 2006 24-hour PM2.5 NAAQS in Pittsburgh-Beaver Valley
Area, Pennsylvania) and 78 FR 63881 (October 25, 2013) (determination
of attainment of the 1997 annual PM2.5 standard in Liberty-
Clairton Area, Pennsylvania). Thus, EPA has established that, under
subpart 4, an attainment determination suspends the obligations to
submit an attainment

[[Page 22669]]

demonstration, RACM, RFP contingency measures, and other measures
related to attainment.
2. Application of the Clean Data Policy to Attainment-Related
Provisions of Subpart 4
EPA initially set forth at length its rationale for applying the
Clean Data Policy to PM10 under subpart 4 in EPA's proposed
and final rulemaking actions determining that the San Joaquin Valley
nonattainment area attained the PM10 standard. The Ninth
Circuit upheld EPA's final rulemaking, and specifically EPA's Clean
Data Policy, in the context of subpart 4. Latino Issues Forum v. EPA,
supra. Nos. 06-75831 and 08-71238 (9th Cir.), Memorandum Opinion, March
2, 2009. In rejecting the petitioner's challenge to the Clean Data
Policy under subpart 4 for PM10, the Ninth Circuit stated,
``As the EPA explained, if an area is in compliance with
PM10 standards, then further progress for the purpose of
ensuring attainment is not necessary.''
The general requirements of subpart 1 apply in conjunction with the
more specific requirements of subpart 4, to the extent they are not
superseded or subsumed by the subpart 4 requirements. Subpart 1
contains general air quality planning requirements for areas designated
as nonattainment. See section 172(c). Subpart 4, itself, contains
specific planning and scheduling requirements for PM10
nonattainment areas, and under the Court's January 4, 2013 decision in
NRDC v. EPA, these same statutory requirements also apply for
PM2.5 nonattainment areas. EPA has longstanding general
guidance that interprets the 1990 amendments to the CAA, making
recommendations to states for meeting the statutory requirements for
SIPs for nonattainment areas. See ``State Implementation Plans; General
Preamble for the Implementation of Title I of the Clean Air Act
Amendments of 1990,'' (57 FR 13498, April 16, 1992) (General Preamble).
In the General Preamble, EPA discussed the relationship of subpart 1
and subpart 4 SIP requirements, and pointed out that subpart 1
requirements were to an extent ``subsumed by, or integrally related to,
the more specific PM10 requirements.'' Id. These subpart 1
requirements include, among other things, provisions for attainment
demonstrations, RACM, RFP, emissions inventories, and contingency
measures.
EPA has long interpreted the provisions of subpart 1 (sections 171
and 172) as not requiring the submission of RFP for an area already
attaining the ozone NAAQS.\6\ For an area that is attaining, showing
that the state will make RFP towards attainment ``will, therefore, have
no meaning at that point.'' Id. See also 71 FR 40952 and 71 FR 63642
(proposed and final determination of attainment for San Joaquin
Valley); 75 FR 13710 and 75 FR 27944 (proposed and final determination
of attainment for Coso Junction).
---------------------------------------------------------------------------

\6\ See the Seitz Memorandum.
---------------------------------------------------------------------------

Section 189(c)(1) of subpart 4 states that:

Plan revisions demonstrating attainment submitted to the
Administrator for approval under this subpart shall contain
quantitative milestones which are to be achieved every 3 years until
the area is redesignated attainment and which demonstrate reasonable
further progress, as defined in section [section 171(1)] of this
title, toward attainment by the applicable date.

With respect to RFP, section 171(1) states that, for purposes of
part D, RFP ``means such annual incremental reductions in emissions of
the relevant air pollutant as are required by this part or may
reasonably be required by the Administrator for the purpose of ensuring
attainment of the applicable NAAQS by the applicable date.'' Thus,
whether dealing with the general RFP requirement of section 172(c)(2),
the ozone-specific RFP requirements of sections 182(b) and (c), or the
specific RFP requirements for PM10 areas of part D, subpart
4, section 189(c)(1), the stated purpose of RFP is to ensure attainment
by the applicable attainment date.
Although section 189(c) states that revisions shall contain
milestones which are to be achieved until the area is redesignated to
attainment, such milestones are designed to show reasonable further
progress ``toward attainment by the applicable attainment date,'' as
defined by section 171. Thus, it is clear that once the area has
attained the standard, no further milestones are necessary or
meaningful. This interpretation is supported by language in section
189(c)(3), which mandates that a state that fails to achieve a
milestone must submit a plan that assures that the state will achieve
the next milestone or attain the NAAQS if there is no next milestone.
Section 189(c)(3) assumes that the requirement to submit and achieve
milestones does not continue after attainment of the NAAQS.
In the General Preamble, EPA noted with respect to section 189(c)
that the purpose of the milestone requirement ``is `to provide for
emission reductions adequate to achieve the standards by the applicable
attainment date' (H.R. Rep.No. 490 101st Cong., 2d Sess. 267 (1990)).''
(57 FR 13539, April 16, 1992). If an area has in fact attained the
standard, the stated purpose of the RFP requirement will have already
been fulfilled.\7\
---------------------------------------------------------------------------

\7\ Thus, EPA believes that it is a distinction without a
difference that section 189(c)(1) speaks of the RFP requirement as
one to be achieved until an area is ``redesignated attainment,'' as
opposed to section 172(c)(2), which is silent on the period to which
the requirement pertains, or the ozone nonattainment area RFP
requirements in sections 182(b)(1) or 182(c)(2), which refer to the
RFP requirements as applying until the ``attainment date,'' since
section 189(c)(1) defines RFP by reference to section 171(1) of the
CAA. Reference to section 171(1) clarifies that, as with the general
RFP requirements in section 172(c)(2) and the ozone-specific
requirements of section 182(b)(1) and 182(c)(2), the PM-specific
requirements may only be required ``for the purpose of ensuring
attainment of the applicable national ambient air quality standard
by the applicable date.'' 42 U.S.C. 7501(1). As discussed in the
text of this rulemaking, EPA interprets the RFP requirements, in
light of the definition of RFP in section 171(1), and incorporated
in section 189(c)(1), to be a requirement that no longer applies
once the standard has been attained.
---------------------------------------------------------------------------

Similarly, the requirements of section 189(c)(2) with respect to
milestones no longer apply so long as an area has attained the
standard. Section 189(c)(2) provides in relevant part that:

Not later than 90 days after the date on which a milestone
applicable to the area occurs, each State in which all or part of
such area is located shall submit to the Administrator a
demonstration . . . that the milestone has been met.

Where the area has attained the standard and there are no further
milestones, there is no further requirement to make a submission
showing that such milestones have been met. This is consistent with the
position that EPA took with respect to the general RFP requirement of
section 172(c)(2) in the April 16, 1992 General Preamble and also in
the Seitz Memorandum with respect to the requirements of section 182(b)
and (c). In the Seitz Memorandum, EPA also noted that section 182(g),
the milestone requirement of subpart 2, which is analogous to
provisions in section 189(c), is suspended upon a determination that an
area has attained. The Seitz Memorandum, in citing additional
provisions related to attainment demonstration and RFP requirements,
stated:

Inasmuch as each of these requirements is linked with the
attainment demonstration or RFP requirements of section 182(b)(1) or
182(c)(2), if an area is not subject to the requirement to submit
the underlying attainment demonstration or RFP plan, it need not
submit the related SIP submission either.

See Seitz Memorandum at 5.

[[Page 22670]]

With respect to the attainment demonstration requirements of
section 172(c) and section 189(a)(1)(B) in subpart 4, an analogous
rationale leads to the same result. Section 189(a)(1)(B) requires that
the plan provide for ``a demonstration (including air quality modeling)
that the [SIP] will provide for attainment by the applicable attainment
date . . . '' As with the RFP requirements, if an area is already
monitoring attainment of the standard, EPA believes there is no need
for an area to make a further submission containing additional measures
to achieve attainment. This is also consistent with the interpretation
of the section 172(c) requirements provided by EPA in the General
Preamble, and the section 182(b) and (c) requirements set forth in the
Seitz Memorandum. As EPA stated in the General Preamble, no other
measures to provide for attainment would be needed by areas seeking
redesignation to attainment since ``attainment will have been
reached.'' 57 FR 13564.
Other SIP submission requirements are linked with these attainment
demonstration and RFP requirements, and similar reasoning applies to
them. These requirements include the contingency measure requirements
of section 172(c)(9). EPA has interpreted the contingency measure
requirements of section 172(c)(9) \8\ as no longer applying when an
area has attained the standard because those ``contingency measures are
directed at ensuring RFP and attainment by the applicable date.'' See
57 FR 13564 and Seitz Memorandum, pp. 5-6.
---------------------------------------------------------------------------

\8\ See section 182(c)(9) for ozone.
---------------------------------------------------------------------------

Section 172(c)(9) provides that SIPs in nonattainment areas:

shall provide for the implementation of specific measures to be
undertaken if the area fails to make reasonable further progress, or
to attain the [NAAQS] by the attainment date applicable under this
part. Such measures shall be included in the plan revision as
contingency measures to take effect in any such case without further
action by the State or [EPA].

The contingency measure requirement is inextricably tied to the
reasonable further progress and attainment demonstration requirements.
Contingency measures are implemented if reasonable further progress
targets are not achieved, or if attainment is not realized by the
attainment date.
Where an area has already achieved attainment by the attainment
date, it has no need to rely on contingency measures to come into
attainment or to make further progress to attainment. As EPA stated in
the General Preamble: ``The section 172(c)(9) requirements for
contingency measures are directed at ensuring RFP and attainment by the
applicable date.'' See 57 FR 13564. Thus these requirements no longer
apply when an area has attained the standard.
Both sections 172(c)(1) and 189(a)(1)(C) require ``provisions to
assure that reasonably available control measures'' (i.e., RACM) are
implemented in a nonattainment area. The General Preamble, (57 FR at
13560, April 16, 1992), states that EPA interprets section 172(c)(1) so
that RACM requirements are a ``component'' of an area's attainment
demonstration. Thus, for the same reason the attainment demonstration
no longer applies by its own terms, the requirement for RACM no longer
applies. EPA has consistently interpreted this provision to require
only implementation of potential RACM measures that could contribute to
reasonable further progress or to attainment. General Preamble, 57 FR
13498. Thus, where an area is already attaining the standard, no
additional RACM measures are required.\9\ EPA is interpreting section
189(a)(1)(C) consistent with its interpretation of section 172(c)(1).
---------------------------------------------------------------------------

\9\ EPA's interpretation that the statute requires
implementation only of RACM measures that would advance attainment
was upheld by the United States Court of Appeals for the Fifth
Circuit in Sierra Club v. EPA, 314 F.3d 735, 743-745 (5th Cir. 2002)
and by the United States Court of Appeals for the D.C. Circuit in
Sierra Club v. EPA, 294 F.3d 155, 162-163 (D.C. Cir. 2002).
---------------------------------------------------------------------------

The suspension of the obligations to submit SIP revisions
concerning these RFP, attainment demonstration, RACM, contingency
measures and other related requirements exists only for as long as the
area continues to monitor attainment of the standard. If EPA
determines, after notice-and-comment rulemaking, that the area has
monitored a violation of the NAAQS, the basis for the requirements
being suspended would no longer exist. In that case, the area would
again be subject to a requirement to submit the pertinent SIP revision
or revisions and would need to address those requirements. Thus, a
final determination that the area need not submit one of the pertinent
SIP submittals amounts to no more than a suspension of the requirements
for so long as the area continues to attain the standard. Only if and
when EPA redesignates the area to attainment would the area be relieved
of these submission obligations. Attainment determinations under the
Clean Data Policy do not shield an area from obligations unrelated to
attainment in the area, such as provisions to address nonattainment
area permitting requirements, emission inventory requirements, and
pollution transport. See 79 FR 77911 (December 29, 2014) (discussion of
remaining attainment plan SIP requirements in CAA section 172(c) in the
final determination of attainment rulemaking for the Lyons,
Pennsylvania lead nonattainment area).
For this proposed rulemaking action, EPA has evaluated
PM2.5 air quality data to propose to determine that the
Liberty-Clairton Area is attaining the 2006 24-hour PM2.5
NAAQS.

III. EPA's Evaluation of the Liberty-Clairton
PM[bdi2].[bdi5] Air Quality Data

The Allegheny County Health Department (ACHD) submitted quality-
assured and certified air quality monitoring data into the EPA Air
Quality System (AQS) database for the 2012-2014 monitoring period.
There are two PM2.5 monitors in the Liberty-Clairton Area--
one in Liberty Borough and one in the City of Clairton. Both monitors
had complete data for all quarters in the calendar years 2012 through
2014.
This proposed determination of attainment for the Liberty-Clairton
Area is based on EPA's evaluation of quality-controlled, quality
assured, certified PM2.5 air quality data for 2012-2014, as
summarized in Table 1.

Table 1--2012-2014 Liberty-Clairton Area Daily PM2.5 Monitoring Data & Completeness
--------------------------------------------------------------------------------------------------------------------------------------------------------
98th percentile 2012-2014
Monitor name AQS site ID Location ------------------------------------------------ Design value Complete data?
2012 2013 2014 ([mu]g/m\3\)
--------------------------------------------------------------------------------------------------------------------------------------------------------
Liberty......................... 42-003-0064 Liberty Borough.... 42.5 31.1 32.2 35 Yes.
Clairton........................ 42-003-3007 City of Clairton... 19.2 17.1 31.2 23 Yes.
--------------------------------------------------------------------------------------------------------------------------------------------------------

[[Page 22671]]

As shown, the design values for both monitors in the Liberty-
Clairton Area are 35 [mu]g/m\3\ or less for the 2012-2014 monitoring
period. Thus, in accordance with EPA's requirements in 40 CFR part 50,
the monitors in the Liberty-Clairton Area are showing attainment of the
2006 24-hour PM2.5 NAAQS, based on the 2012-2014 quality-
assured and certified air quality data, the most recent three years of
data for the Area.
Based on our review of the Liberty-Clairton Area's PM2.5
ambient air monitoring data, EPA proposes to determine that the
Liberty-Clairton Area has attained the 2006 24-hour PM2.5
NAAQS during the 2012-2014 monitoring period, in accordance with 40 CFR
part 50. Additional information on air quality data for the Liberty-
Clairton Area can be found in the technical support document (TSD)
prepared for this proposed action.

IV. Proposed Actions

EPA is proposing to determine, based on the most recent three years
of complete quality-assured, and certified data for 2012-2014 meeting
the requirements of 40 CFR part 50, appendix N, that the Liberty-
Clairton Area is currently attaining the 2006 24-hour PM2.5
NAAQS. In accordance with our Clean Data Policy, based upon this
proposed determination of attainment, EPA also proposes to determine
that the obligation to submit the following attainment-related planning
requirements for the Liberty-Clairton Area are not applicable for so
long as the Area continues to monitor attainment for the 2006 24-hour
PM2.5 NAAQS: Subpart 4 obligations to provide an attainment
demonstration pursuant to section 189(a)(1)(B), the RACM provisions of
section 189(a)(1)(C), the RFP provisions of section 189(c), and related
attainment demonstration, RACM, RFP, and contingency measure provisions
requirements of subpart 1, section 172. If in the future, EPA
determines after notice-and-comment rulemaking that the Liberty-
Clairton Area again violates the 2006 24-hour PM2.5 NAAQS,
the basis for suspending these requirements would no longer exist. This
proposed rulemaking action, if finalized, would not constitute a
redesignation to attainment under CAA section 107(d)(3). In addition,
this determination, if finalized, does not relieve the requirement for
Pennsylvania to submit for the Liberty-Clairton Area an emissions
inventory as required by CAA section 172(c)(3) or to have a
nonattainment area permitting program pursuant to CAA sections
172(c)(5) and 173. EPA is soliciting public comments on the issues
discussed in this document. These comments will be considered before
taking final action.

V. Statutory and Executive Order Reviews

Under the CAA, the Administrator is required to approve a SIP
submission that complies with the provisions of the CAA and applicable
Federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a). Thus, in
reviewing SIP submissions, EPA's role is to approve state choices,
provided that they meet the criteria of the CAA. Accordingly, this
action merely approves state law as meeting Federal requirements and
does not impose additional requirements beyond those imposed by state
law. For that reason, this proposed action:
Is not a ``significant regulatory action'' subject to
review by the Office of Management and Budget under Executive Order
12866 (58 FR 51735, October 4, 1993);
Does not impose an information collection burden under the
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
Is certified as not having a significant economic impact
on a substantial number of small entities under the Regulatory
Flexibility Act (5 U.S.C. 601 et seq.);
Does not contain any unfunded mandate or significantly or
uniquely affect small governments, as described in the Unfunded
Mandates Reform Act of 1995 (Pub. L. 104-4);
Does not have Federalism implications as specified in
Executive Order 13132 (64 FR 43255, August 10, 1999);
Is not an economically significant regulatory action based
on health or safety risks subject to Executive Order 13045 (62 FR
19885, April 23, 1997);
Is not a significant regulatory action subject to
Executive Order 13211 (66 FR 28355, May 22, 2001);
Is not subject to requirements of Section 12(d) of the
National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272
note) because application of those requirements would be inconsistent
with the CAA; and
Does not provide EPA with the discretionary authority to
address, as appropriate, disproportionate human health or environmental
effects, using practicable and legally permissible methods, under
Executive Order 12898 (59 FR 7629, February 16, 1994).
In addition, this proposed rule, proposing to determine that the
Liberty-Clairton Area has attained the 2006 24-hour PM2.5
NAAQS, does not have tribal implications as specified by Executive
Order 13175 (65 FR 67249, November 9, 2000), because the SIP is not
approved to apply in Indian country located in the State, and EPA notes
that it will not impose substantial direct costs on tribal governments
or preempt tribal law.

List of Subjects in 40 CFR Part 52

Environmental protection, Air pollution control, Incorporation by
reference, Intergovernmental relations, Particulate matter, Reporting
and recordkeeping requirements.

Authority: 42 U.S.C. 7401 et seq.

Dated: April 10, 2015.
William C. Early,
Acting Regional Administrator, Region III.
[FR Doc. 2015-09416 Filed 4-22-15; 8:45 am]
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