{"abstract":"The U.S. Environmental Protection Agency (EPA) is reconsidering certain aspects of the January 2025 final rule entitled State Implementation Plan Submittal Deadlines and Implementation Requirements for Reclassified Nonattainment Areas Under the Ozone National Ambient Air Quality Standards (\"January 2025 final rule\"). Among other things, the January 2025 final rule codified a policy that certain State Implementation Plan (SIP) requirements for a prior classification remain due upon an area's reclassification to a higher classification. In this proposed action, the EPA is proposing a new interpretation that, upon reclassification, an area is subject only to those requirements in Clean Air Act (CAA) section 182 that are specific to that area's current classification. If finalized, this proposed rule would apply nationwide to all past and future reclassifications associated with the 2008, 2015, and any future ozone National Ambient Air Quality Standards (NAAQS). The EPA is not reconsidering or reopening any other aspect of the January 2025 final rule in this rulemaking and is not addressing the scope of applicable requirements for NAAQS other than the ozone NAAQS.","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/2026/06/12/2026-11843.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"51","title":40}],"citation":"91 FR 35639","comment_url":"http://www.regulations.gov/commenton/EPA-HQ-OAR-2025-0201-0001","comments_close_on":"2026-07-13","correction_of":null,"corrections":[],"dates":"Comments must be received on or before July 13, 2026.","disposition_notes":null,"docket_ids":["EPA-HQ-OAR-2025-0201","FRL-11817.1-01-OAR"],"dockets":[{"supporting_documents":[{"title":"E.O. 12866 Initial Review: Ozone Reclassification State Implementation Plan Proposed Rule","document_id":"EPA-HQ-OAR-2025-0201-0031"},{"title":"E. O. 12866 Review: Ozone Reclassification State Implementation Plan Proposed Rule, OMB Passback 2","document_id":"EPA-HQ-OAR-2025-0201-0030"},{"title":"E. O. 12866 Review: Ozone Reclassification State Implementation Plan Proposed Rule, OMB 1st Review Version","document_id":"EPA-HQ-OAR-2025-0201-0029"},{"title":"E.O. 12866 Concluded Review: Ozone Reclassification State Implementation Plan Proposed Rule","document_id":"EPA-HQ-OAR-2025-0201-0028"},{"title":"Final Rule: State Implementation Plan Submittal Deadlines and Implementation Requirements for Reclassified Nonattainment Areas Under the Ozone National Ambient Air Quality Standards, 90 FR 5651, January 17, 2025","document_id":"EPA-HQ-OAR-2025-0201-0027"},{"title":"Final Rule: Additional Air Quality Designations for the 2015 Ozone National Ambient Air Quality Standards, 83 FR 25776, June 4, 2018","document_id":"EPA-HQ-OAR-2025-0201-0025"},{"title":"Policy: Public Involvement Policy of the U.S. Environmental Protection Agency, May 2003","document_id":"EPA-HQ-OAR-2025-0201-0024"},{"title":"Final Rule: Determinations of Attainment by the Attainment Date, Extensions of the Attainment Date, and Reclassification of Areas Classified as Serious for the 2008 Ozone National Ambient Air Quality Standards, 87 FR 60926, October 7, 2022","document_id":"EPA-HQ-OAR-2025-0201-0022"},{"title":"Final Rule: Additional Air Quality Designations for the 2015 Ozone National Ambient Air Quality Standards—San Antonio, Texas Area, 83 FR 35136, July 25, 2018","document_id":"EPA-HQ-OAR-2025-0201-0019"},{"title":"Guidance: Additional Submission on RACM from States with Severe 1-hour Ozone Nonattainment Area SIPs, John S. Seitz, Director, Office of Air Quality Planning and Standards, December 14, 2000","document_id":"EPA-HQ-OAR-2025-0201-0017"}],"agency_name":"EPA","documents":[{"comment_count":1,"comment_start_date":"2026-06-12","updated_at":"2026-06-14T01:55:43.913-04:00","comment_url":"https://www.regulations.gov/commenton/EPA-HQ-OAR-2025-0201-0001","allow_late_comments":false,"id":"EPA-HQ-OAR-2025-0201-0001","comment_end_date":"2026-07-14","regulations_dot_gov_open_for_comment":true}],"supporting_documents_count":30,"id":"EPA-HQ-OAR-2025-0201","title":"Reconsideration of State Implementation Plan Submittal Deadlines and Implementation Requirements for Reclassified Nonattainment Areas Under the Ozone National Ambient Air Quality Standards"}],"document_number":"2026-11843","effective_on":null,"end_page":35649,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2026/06/12/2026-11843.xml","html_url":"https://www.federalregister.gov/documents/2026/06/12/2026-11843/ozone-reclassification-state-implementation-plan-rule","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2026-11843?publication_date=2026-06-12","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2026-06-12/2026-11843/mods.xml","not_received_for_publication":null,"page_length":11,"page_views":{"count":518,"last_updated":"2026-06-16 20:15:03 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2026-06-12/pdf/2026-11843.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2026-11843.pdf?1781181915","publication_date":"2026-06-12","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2026/06/12/2026-11843.txt","regulation_id_number_info":{"2060-AW81":{"issue":"202504","html_url":"https://www.federalregister.gov/regulations/2060-AW81/state-implementation-plan-submittal-deadlines-and-implementation-requirements-for-reclassified-nonat","title":"State Implementation Plan Submittal Deadlines and Implementation Requirements for Reclassified Nonattainment Areas Under the Ozone National Ambient Air Quality Standards Reconsideration","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=202504&RIN=2060-AW81&operation=OPERATION_EXPORT_XML","priority_category":"Substantive, Nonsignificant"}},"regulation_id_numbers":["2060-AW81"],"regulations_dot_gov_info":{"supporting_documents":[{"title":"E.O. 12866 Initial Review: Ozone Reclassification State Implementation Plan Proposed Rule","document_id":"EPA-HQ-OAR-2025-0201-0031"},{"title":"E. O. 12866 Review: Ozone Reclassification State Implementation Plan Proposed Rule, OMB Passback 2","document_id":"EPA-HQ-OAR-2025-0201-0030"},{"title":"E. O. 12866 Review: Ozone Reclassification State Implementation Plan Proposed Rule, OMB 1st Review Version","document_id":"EPA-HQ-OAR-2025-0201-0029"},{"title":"E.O. 12866 Concluded Review: Ozone Reclassification State Implementation Plan Proposed Rule","document_id":"EPA-HQ-OAR-2025-0201-0028"},{"title":"Final Rule: State Implementation Plan Submittal Deadlines and Implementation Requirements for Reclassified Nonattainment Areas Under the Ozone National Ambient Air Quality Standards, 90 FR 5651, January 17, 2025","document_id":"EPA-HQ-OAR-2025-0201-0027"},{"title":"Final Rule: Additional Air Quality Designations for the 2015 Ozone National Ambient Air Quality Standards, 83 FR 25776, June 4, 2018","document_id":"EPA-HQ-OAR-2025-0201-0025"},{"title":"Policy: Public Involvement Policy of the U.S. Environmental Protection Agency, May 2003","document_id":"EPA-HQ-OAR-2025-0201-0024"},{"title":"Final Rule: Determinations of Attainment by the Attainment Date, Extensions of the Attainment Date, and Reclassification of Areas Classified as Serious for the 2008 Ozone National Ambient Air Quality Standards, 87 FR 60926, October 7, 2022","document_id":"EPA-HQ-OAR-2025-0201-0022"},{"title":"Final Rule: Additional Air Quality Designations for the 2015 Ozone National Ambient Air Quality Standards—San Antonio, Texas Area, 83 FR 35136, July 25, 2018","document_id":"EPA-HQ-OAR-2025-0201-0019"},{"title":"Guidance: Additional Submission on RACM from States with Severe 1-hour Ozone Nonattainment Area SIPs, John S. Seitz, Director, Office of Air Quality Planning and Standards, December 14, 2000","document_id":"EPA-HQ-OAR-2025-0201-0017"}],"comments_count":1,"agency_id":"EPA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=EPA-HQ-OAR-2025-0201","supporting_documents_count":30,"docket_id":"EPA-HQ-OAR-2025-0201","document_id":"EPA-HQ-OAR-2025-0201-0001","regulation_id_number":null,"title":"Reconsideration of State Implementation Plan Submittal Deadlines and Implementation Requirements for Reclassified Nonattainment Areas Under the Ozone National Ambient Air Quality Standards","checked_regulationsdotgov_at":"2026-06-15T08:55:03Z"},"regulations_dot_gov_url":"http://www.regulations.gov/commenton/EPA-HQ-OAR-2025-0201-0001","significant":false,"signing_date":null,"start_page":35639,"subtype":null,"title":"Ozone Reclassification State Implementation Plan Rule","toc_doc":"Ozone Reclassification State Implementation Plan Rule","toc_subject":null,"topics":["Administrative practice and procedure","Air pollution control","Environmental protection","Incorporation by reference","Intergovernmental relations","Nitrogen oxides","Ozone","Reporting and recordkeeping requirements","Volatile organic compounds"],"type":"Proposed Rule","volume":91}