{"abstract":"The EPA is proposing to determine that the Cross-State Air Pollution Rule Update for the 2008 ozone National Ambient Air Quality Standards (NAAQS) (CSAPR Update) fully addresses certain states' obligations under Clean Air Act (CAA) section 110(a)(2)(D)(i)(I) regarding interstate pollution transport for the 2008 ozone NAAQS. The CSAPR Update, published on October 26, 2016, promulgated Federal Implementation Plans (FIPs) for 22 states in the eastern U.S. In the final CSAPR Update, based on information available at that time, the EPA could not conclude that the rule fully addressed CAA section 110(a)(2)(D)(i)(I) obligations for 21 of the 22 CSAPR Update states. This action proposes a determination that, based on additional information and analysis, the CSAPR Update fully addresses this CAA provision for the 2008 ozone NAAQS for all remaining CSAPR Update states. Specifically, EPA proposes to determine that there will be no remaining nonattainment or maintenance receptors in the eastern U.S. in 2023. Therefore, with the CSAPR Update fully implemented, these states are not expected to contribute significantly to nonattainment in, or interfere with maintenance by, any other state with regard to the 2008 ozone NAAQS. In accord with this proposed determination, the EPA proposes to determine that it has no outstanding, unfulfilled obligation under CAA section 110(c)(1) to establish additional requirements for sources in these states to further reduce transported ozone pollution under CAA section 110(a)(2)(D)(i)(I) with regard to the 2008 ozone NAAQS. As a result of this finding, this action proposes minor revisions to the existing CSAPR Update regulations to reflect that the CSAPR Update FIPs fully address CAA section 110(a)(2)(D)(i)(I). The proposed determination would apply to states currently subject to CSAPR Update FIPs as well as any states for which EPA has approved replacement of CSAPR Update FIPs with CSAPR Update SIPs.","action":"Proposed rule.","agencies":[{"raw_name":"ENVIRONMENTAL PROTECTION AGENCY","name":"Environmental Protection Agency","id":145,"url":"https://www.federalregister.gov/agencies/environmental-protection-agency","json_url":"https://www.federalregister.gov/api/v1/agencies/145","parent_id":null,"slug":"environmental-protection-agency"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2018/07/10/2018-14737.html","cfr_references":[{"chapter":null,"citation_url":null,"part":52,"title":40}],"citation":"83 FR 31915","comment_url":null,"comments_close_on":"2018-08-31","correction_of":null,"corrections":[],"dates":"Comments must be received on or before August 31, 2018.","disposition_notes":null,"docket_ids":["EPA-HQ-OAR-2018-0225","FRL-9980-53-OAR"],"dockets":[{"supporting_documents":[{"title":"Response to Comment","document_id":"EPA-HQ-OAR-2018-0225-0423"},{"title":"APP I OTC Mane -VU Modeling TSD 20122 2023 2028 10-2018","document_id":"EPA-HQ-OAR-2018-0225-0411"},{"title":"2011v6 2 2017eh 2025 EI TSD","document_id":"EPA-HQ-OAR-2018-0225-0410"},{"title":"2011en County Monthly Report","document_id":"EPA-HQ-OAR-2018-0225-0409"},{"title":"2023en State Sector Totals","document_id":"EPA-HQ-OAR-2018-0225-0407"},{"title":"CrossState Air Pollution Rule (CSAPR) Update RTC","document_id":"EPA-HQ-OAR-2018-0225-0405"},{"title":"E.O. 12866 Correspondence Concluding Review of the Final Rule 12-4-2018","document_id":"EPA-HQ-OAR-2018-0225-0403"},{"title":"E.O. 12866 EPA Pass-Back on the Final Rule 12-3-2018","document_id":"EPA-HQ-OAR-2018-0225-0402"},{"title":"Electricity Supply, Disposistion, and 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NAAQS"}],"document_number":"2018-14737","effective_on":null,"end_page":31939,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2018/07/10/2018-14737.xml","html_url":"https://www.federalregister.gov/documents/2018/07/10/2018-14737/determination-regarding-good-neighbor-obligations-for-the-2008-ozone-national-ambient-air-quality","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2018-14737?publication_date=2018-07-10","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2018-07-10/2018-14737/mods.xml","not_received_for_publication":null,"page_length":25,"page_views":{"count":655,"last_updated":"2026-10-25 08:15:04 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Units","document_id":"EPA-HQ-OAR-2018-0225-0392"}],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/2060-AT92/determination-regarding-good-neighbor-obligations-for-the-2008-ozone-naaqs","title":"Determination Regarding Good Neighbor Obligations for the 2008 Ozone NAAQS"},"comments_count":10255,"agency_id":"EPA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=EPA-HQ-OAR-2018-0225","supporting_documents_count":104,"docket_id":"EPA-HQ-OAR-2018-0225","document_id":"EPA-HQ-OAR-2018-0225-0001","regulation_id_number":"2060-AT92","title":"Determination Regarding Good Neighbor Obligations for the 2008 Ozone NAAQS","checked_regulationsdotgov_at":"2023-03-01T06:35:08Z"},"regulations_dot_gov_url":null,"significant":true,"signing_date":null,"start_page":31915,"subtype":null,"title":"Determination Regarding Good Neighbor Obligations for the 2008 Ozone National Ambient Air Quality Standard","toc_doc":"Determination Regarding Good Neighbor Obligations for 2008 Ozone National Ambient Air Quality Standard","toc_subject":"Air Quality State Implementation Plans; Approvals and Promulgations:","topics":["Administrative practice and procedure","Air pollution control","Environmental protection","Incorporation by reference","Intergovernmental relations","Nitrogen oxides","Ozone","Particulate matter","Reporting and recordkeeping requirements"],"type":"Proposed Rule","volume":83}