{"abstract":"The Environmental Protection Agency (EPA) is proposing to approve the State of Ohio's attainment plan for the Canton Nonattainment Area for the 2008 Lead (Pb) National Ambient Air Quality Standards (NAAQS). Additionally, the EPA is proposing to determine that the Canton Nonattainment Area has attained the 2008 Pb NAAQS and to approve Ohio's maintenance plan for continued attainment. With these approvals, the EPA is also proposing to approve Ohio's comprehensive Pb emissions inventory and to act in accordance with Ohio Environmental Protection Agency's (Ohio EPA) request to redesignate the Canton Nonattainment Area from nonattainment to attainment of the 2008 Pb NAAQS. The EPA is taking these actions in accordance with the Clean Air Act (CAA) and the EPA's implementation regulations regarding the 2008 Pb 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/2026/04/10/2026-06937.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"52","title":40},{"chapter":null,"citation_url":null,"part":"81","title":40}],"citation":"91 FR 18372","comment_url":"http://www.regulations.gov/commenton/EPA-R05-OAR-2025-0222-0001","comments_close_on":"2026-05-11","correction_of":null,"corrections":[],"dates":"Comments must be received on or before May 11, 2026.","disposition_notes":null,"docket_ids":["EPA-R05-OAR-2024-0461","EPA-R05-OAR-2025-0222","FRL-13226-01-R5"],"dockets":[{"supporting_documents":[{"title":"2025-12-11 Canton OH Pb Redesignation - Technical Support Document","document_id":"EPA-R05-OAR-2024-0461-0037"},{"title":"2025-07-18 Basic Information about Lead Air Pollution - EPA Webpage","document_id":"EPA-R05-OAR-2024-0461-0035"},{"title":"2025-05-07 Reduced Air Pollution from Transportation Sector","document_id":"EPA-R05-OAR-2024-0461-0034"},{"title":"2023-12-12 Stark County Consent Order Case 2021cv00949","document_id":"EPA-R05-OAR-2024-0461-0031"},{"title":"2021-2025 AQS Republic Monitor 391510024_AMP350 Data","document_id":"EPA-R05-OAR-2024-0461-0029"},{"title":"2021-11-04 EPA Press Release - NOV Republic Steel","document_id":"EPA-R05-OAR-2024-0461-0028"},{"title":"2021-07-02 Consent Order for Preliminary Injunction","document_id":"EPA-R05-OAR-2024-0461-0027"},{"title":"2021-02-26 Ohio DFFO - Republic Steel","document_id":"EPA-R05-OAR-2024-0461-0026"},{"title":"2019-05-14 Ohio DFFO - Republic Steel","document_id":"EPA-R05-OAR-2024-0461-0025"},{"title":"2019-04-30 Ohio DFFO - Republic Steel","document_id":"EPA-R05-OAR-2024-0461-0024"}],"agency_name":"EPA","documents":[{"comment_count":1,"comment_start_date":"2026-04-10","updated_at":"2026-04-20T01:55:35.727-04:00","comment_url":"https://www.regulations.gov/commenton/EPA-R05-OAR-2024-0461-0001","allow_late_comments":false,"id":"EPA-R05-OAR-2024-0461-0001","comment_end_date":"2026-05-12","regulations_dot_gov_open_for_comment":true}],"supporting_documents_count":36,"id":"EPA-R05-OAR-2024-0461","title":"Canton, Ohio  2008 Pb NAAQS Attainment Demonstration"},{"supporting_documents":[{"title":"2025-12-11 Canton OH Pb Redesignation - Technical Support Document","document_id":"EPA-R05-OAR-2025-0222-0020"},{"title":"2023-08-10 Grupo Simec to Idle Steelmaking in Ohio","document_id":"EPA-R05-OAR-2025-0222-0019"},{"title":"2025-07-18 Basic Information about Lead Air Pollution - EPA Webpage","document_id":"EPA-R05-OAR-2025-0222-0018"},{"title":"2025-05-07 Reduced Air Pollution from Transportation Sector","document_id":"EPA-R05-OAR-2025-0222-0017"},{"title":"2024-2025 OH Air Monitoring Network Plan","document_id":"EPA-R05-OAR-2025-0222-0016"},{"title":"2023-12-18 Republic Steel - Federal CD Entered by Judge","document_id":"EPA-R05-OAR-2025-0222-0015"},{"title":"2023-12-12 Stark County Consent Order Case 2021cv00949","document_id":"EPA-R05-OAR-2025-0222-0014"},{"title":"2022-2025 AQS Republic Community Monitor 391510025_AMP350 Data","document_id":"EPA-R05-OAR-2025-0222-0013"},{"title":"2021-2025 AQS Republic Monitor 391510024_AMP350 Data","document_id":"EPA-R05-OAR-2025-0222-0012"},{"title":"2021-11-04 EPA Press Release - NOV Republic Steel","document_id":"EPA-R05-OAR-2025-0222-0011"}],"agency_name":"EPA","documents":[{"comment_count":1,"comment_start_date":"2026-04-14","updated_at":"2026-04-29T01:56:36.136-04:00","comment_url":"https://www.regulations.gov/commenton/EPA-R05-OAR-2025-0222-0001","allow_late_comments":false,"id":"EPA-R05-OAR-2025-0222-0001","comment_end_date":"2026-05-12","regulations_dot_gov_open_for_comment":true}],"supporting_documents_count":19,"id":"EPA-R05-OAR-2025-0222","title":"Canton, Ohio 2008 Lead (Pb) NAAQS Redesignation and Maintenance Plan"}],"document_number":"2026-06937","effective_on":null,"end_page":18383,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2026/04/10/2026-06937.xml","html_url":"https://www.federalregister.gov/documents/2026/04/10/2026-06937/air-plan-approval-and-air-quality-designation-ohio-attainment-plan-and-redesignation-of-the-canton","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2026-06937?publication_date=2026-04-10","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2026-04-10/2026-06937/mods.xml","not_received_for_publication":null,"page_length":12,"page_views":{"count":132,"last_updated":"2026-05-11 08:15:19 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2026-04-10/pdf/2026-06937.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2026-06937.pdf?1775738711","publication_date":"2026-04-10","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2026/04/10/2026-06937.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"supporting_documents":[{"title":"2025-12-11 Canton OH Pb Redesignation - Technical Support Document","document_id":"EPA-R05-OAR-2025-0222-0020"},{"title":"2023-08-10 Grupo Simec to Idle Steelmaking in Ohio","document_id":"EPA-R05-OAR-2025-0222-0019"},{"title":"2025-07-18 Basic Information about Lead Air Pollution - EPA Webpage","document_id":"EPA-R05-OAR-2025-0222-0018"},{"title":"2025-05-07 Reduced Air Pollution from Transportation Sector","document_id":"EPA-R05-OAR-2025-0222-0017"},{"title":"2024-2025 OH Air Monitoring Network Plan","document_id":"EPA-R05-OAR-2025-0222-0016"},{"title":"2023-12-18 Republic Steel - Federal CD Entered by Judge","document_id":"EPA-R05-OAR-2025-0222-0015"},{"title":"2023-12-12 Stark County Consent Order Case 2021cv00949","document_id":"EPA-R05-OAR-2025-0222-0014"},{"title":"2022-2025 AQS Republic Community Monitor 391510025_AMP350 Data","document_id":"EPA-R05-OAR-2025-0222-0013"},{"title":"2021-2025 AQS Republic Monitor 391510024_AMP350 Data","document_id":"EPA-R05-OAR-2025-0222-0012"},{"title":"2021-11-04 EPA Press Release - NOV Republic Steel","document_id":"EPA-R05-OAR-2025-0222-0011"}],"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-R05-OAR-2025-0222","supporting_documents_count":19,"docket_id":"EPA-R05-OAR-2025-0222","document_id":"EPA-R05-OAR-2025-0222-0001","regulation_id_number":null,"title":"Canton, Ohio 2008 Lead (Pb) NAAQS Redesignation and Maintenance Plan","checked_regulationsdotgov_at":"2026-04-30T04:55:05Z"},"regulations_dot_gov_url":"http://www.regulations.gov/commenton/EPA-R05-OAR-2025-0222-0001","significant":null,"signing_date":null,"start_page":18372,"subtype":null,"title":"Air Plan Approval and Air Quality Designation; Ohio; Attainment Plan and Redesignation of the Canton Area to Attainment of the 2008 Lead Standard","toc_doc":"Ohio; Attainment Plan and Redesignation of the Canton Area to Attainment of the 2008 Lead Standard","toc_subject":"Air Quality State Implementation Plans; Approvals and Promulgations","topics":["Air pollution control","Environmental protection","Incorporation by reference","Intergovernmental relations","Lead","National parks","Reporting and recordkeeping requirements","Wilderness areas"],"type":"Proposed Rule","volume":91}