Air Plan Approval; Illinois; NAAQS Update

<RULE> ENVIRONMENTAL PROTECTION AGENCY <CFR>40 CFR Part 52</CFR> <DEPDOC>[EPA-R05-OAR-2022-0673; FRL-10900-02-R5]</DEPDOC> <SUBJECT>Air Plan Approval; Illinois; NAAQS Update</SUBJECT> <HD SOURCE="HED">AGENCY:</HD> Environmental Protection Agency (EPA). <HD SOURCE="HED">ACTION:</HD> Final rule. <SUM> <HD SOURCE="HED">SUMMARY:</HD> The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the Illinois Environmental Protection Agency (IEPA) on July 8, 2022. Illinois revised its air pollution control rules entitled “Part 243—Ambient Air Quality Standards” and updated the “List of Designated Reference and Equivalent Methods” in response to EPA rulemakings and changes to the National Ambient Air Quality Standards (NAAQS) that EPA adopted in 2021. </SUM> <EFFDATE> <HD SOURCE="HED">DATES:</HD> This final rule is effective on February 16, 2024. </EFFDATE> <HD SOURCE="HED">ADDRESSES:</HD> EPA has established a docket for this action under Docket ID No. EPA-R05-OAR-2022-0673. All documents in the docket are listed on the <E T="03">www.regulations.gov</E> website. Although listed in the index, some information is not publicly available, <E T="03">i.e.,</E> Confidential Business Information (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 through <E T="03">www.regulations.gov</E> or at the Environmental Protection Agency, Region 5, Air and Radiation Division, 77 West Jackson Boulevard, Chicago, Illinois 60604. This facility is open from 8:30 a.m. to 4:30 p.m., Monday through Friday, excluding Federal holidays and facility closures due to COVID-19. We recommend that you telephone Daphne Onsay at (312) 886-5945 before visiting the Region 5 office. <FURINF> <HD SOURCE="HED">FOR FURTHER INFORMATION CONTACT:</HD> Daphne Onsay, Life Scientist, Control Strategies Section, Air Programs Branch (AR-18J), Environmental Protection Agency, Region 5, 77 West Jackson Boulevard, Chicago, Illinois 60604, (312) 886-5945, <E T="03">onsay.daphne@epa.gov.</E> </FURINF> <SUPLINF> <HD SOURCE="HED">SUPPLEMENTARY INFORMATION:</HD> Throughout this document whenever “we,” “us,” or “our” is used, we mean EPA. <HD SOURCE="HD1">I. Background Information</HD> On July 8, 2022, IEPA submitted a request to EPA to incorporate revisions to the Illinois air pollution control rules in Title 35 of the Illinois Administrative Code, Part 243—Air Quality Standards. Part 243 sets forth the NAAQS adopted by EPA under section 109 of the Clean Air Act (CAA). The submission updates Part 243: Sections 243.108 and 243.122, effective May 18, 2022. Illinois revised Part 243 to reflect amendments to EPA's “List of Designated References and Equivalent Methods” used to determine compliance with the NAAQS (fine particulate matter and coarse particulate matter, sulfur dioxide (SO <E T="52">2</E> ), carbon monoxide, lead, oxides of nitrogen, and ozone). In addition to these changes, Illinois updated existing rule language to address EPA's revocation of the 1971 primary, 24-hour, and annual average NAAQS for SO <E T="52">2</E> . An explanation of the CAA requirements, a detailed analysis of the revisions, and EPA's reasons for proposing approval were provided in the notice of proposed rulemaking and will not be restated here. The public comment period for this proposed rule ended on August 23, 2023. During the comment period, EPA received one comment that covered a variety of topics including comments on administrative changes being made that could increase the complexity and burden of regulatory compliance on affected industry. The comment is summarized and addressed below and the comment itself is included in the docket for this action. We do not consider this comment to be germane or relevant to this action and therefore not adverse to this action. The comment lacks the required specificity to the proposed SIP revision and the relevant requirements of CAA section 110. Moreover, the comment does not address a specific regulation or provision in question or recommend a different action on the SIP submission from what EPA proposed. Therefore, we are finalizing our action as proposed. <HD SOURCE="HD1">II. Response to Public Comments</HD> <E T="03">Comment 1:</E> The commenter is concerned that the potential complexity of these administrative changes could increase the complexity of regulatory compliance and reporting. The commenter states that businesses may be required to dedicate more resources for compliance, which could place a financial burden on small and medium businesses. The commenter also states that the changes require consistent monitoring, increasing the possibility of non-compliance due to unawareness or misunderstanding. <E T="03">Response 1:</E> Illinois is adopting requirements that are already established at the Federal level and making them applicable at the State level. Illinois is incorporating these Federal regulations into the Illinois air pollution control rules entitled “Part 243—Ambient Air Quality Standards” and also updating the “List of Designated Reference and Equivalent Methods” in response to EPA rulemakings. Illinois is also changing Section 243.122 to be consistent with the Round 4 area designations for the primary 2010 NAAQS for SO <E T="52">2</E> that EPA issued in 2021. These administrative changes do not place additional requirements on regulated entities beyond those already established in the NAAQS. The commenter stated that the administrative changes should be consolidated to a degree that decreases the frequency of these changes. These administrative changes have been consolidated to include the Illinois updates to Part 243, which reflect amendments to EPA's “List of Designated References and Equivalent Methods” used to determine compliance with the NAAQS. In addition, Illinois updated existing rule language to address EPA's revocation of the 1971 primary, 24-hour, and annual average NAAQS for SO <E T="52">2.</E> Regarding the frequency of these administrative changes, EPA is required to update the NAAQS every 5 years, in accordance with section 109 of the CAA. EPA is following statutory requirements. <HD SOURCE="HD1">III. Final Action</HD> EPA is approving a revision to the Illinois SIP. The submittal updates revisions to the Illinois regulations at Title 35 of the Illinois Administrative Code, Part 243—Air Quality Standards (Part 243). Specifically, the updates made to Part 243: Sections 243.108 and 243.122—are intended to be “identical in substance” to, and consistent with the updates to the list of designated Federal equivalent and reference methods and updates to the NAAQS adopted by EPA. IEPA's revisions mirror EPA's reference method for the 2010 1-hour SO <E T="52">2</E> standard. IEPA removed the 1971 primary, 24 hour, and annual SO <E T="52">2</E> standard reflecting EPA's action at the Federal level. <HD SOURCE="HD1">IV. Incorporation by Reference</HD> In this rule, EPA is finalizing regulatory text that includes incorporation by reference. In accordance with requirements of 1 CFR 51.5, EPA is finalizing the incorporation by reference of Illinois Regulations described in section I of this preamble and set forth in the amendments to 40 CFR part 52 below. EPA has made, and will continue to make, these documents generally available through <E T="03">www.regulations.gov</E> and at the EPA Region 5 Office (please contact the person identified in the <E T="02">FOR FURTHER INFORMATION CONTACT</E> section of this preamble for more information). Therefore, these materials have been approved by EPA for inclusion in the SIP, have been incorporated by reference by EPA into that plan, are fully federally enforceable under sections 110 and 113 of the CAA as of the effective date of the final rulemaking of EPA's approval, and will be incorporated by reference in the next update to the SIP compilation. <SU>1</SU> <FTREF/> <FTNT> <SU>1</SU>  62 FR 27968 (May 22, 1997). </FTNT> <HD SOURCE="HD1">V. Statutory and Executive Order Reviews</HD> 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 action: • Is not a significant regulatory action subject to review by the Office of Management and Budget under Executive Orders 12866 (58 FR 51735, October 4, 1993) and 14094 (88 FR 21879, April 11, 2023); • Does not impose an information collection burden under the provisions of the Paperwork Reduction Act (44 U.S.C. 3501 <E T="03">et seq.</E> ); • 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 <E T="03">et seq.</E> ); • 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 subject to Executive Order 13045 (62 FR 19885, April 23, 1997) because it approves a state program; • Is not a significant regulatory action subject to Executive Order 13211 (66 FR 28355, May 22, 2001); and • Is not subject to requirements of Section 12(d) of the National Technology Transfer and Adv ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Preview showing 10k of 15k characters. Full document text is stored and available for version comparison. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━