{"abstract":"The U.S. Environmental Protection Agency (EPA or Agency) is proposing to approve changes to South Carolina's State Implementation Plan (SIP) to revise regulations prescribing minor source permit program requirements, including minor new source review (NSR) requirements, in SIP revisions submitted by the State of South Carolina on October 1, 2007, July 18, 2011, August 8, 2014, April 24, 2020, and July 23, 2025. This action is being proposed pursuant to the Clean Air Act (CAA or Act).","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/2026/08/19/2026-16937.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"52","title":40}],"citation":"91 FR 53558","comment_url":null,"comments_close_on":"2026-09-18","correction_of":null,"corrections":[],"dates":"Comments must be received on or before September 18, 2026.","disposition_notes":null,"docket_ids":["EPA-R04-OAR-2024-0241","FRL-12545-03-R4"],"dockets":[{"supporting_documents":[{"title":"20170807_SC Clarification and Support Letter for Permitting SIPs","document_id":"EPA-R04-OAR-2024-0241-0036"},{"title":"June 20 2024 Name Change Letter","document_id":"EPA-R04-OAR-2024-0241-0035"},{"title":"SC Registration Permit Letter 20260514","document_id":"EPA-R04-OAR-2024-0241-0034"},{"title":"SC-122 April 24 2020 Submittal Combined","document_id":"EPA-R04-OAR-2024-0241-0033"},{"title":"SC-104 July 25 2016 Submittal Combined","document_id":"EPA-R04-OAR-2024-0241-0032"},{"title":"SC 2013 GA Final SIP Package - compiled","document_id":"EPA-R04-OAR-2024-0241-0031"},{"title":"SC-63 October 1 2007 Submittal Combined","document_id":"EPA-R04-OAR-2024-0241-0029"},{"title":"Ozone_Watch_20260720_084653","document_id":"EPA-R04-OAR-2024-0241-0028"},{"title":"June 20 2024 Name Change Letter","document_id":"EPA-R04-OAR-2024-0241-0027"},{"title":"20260811 Backlogged SIPs Letter to SC","document_id":"EPA-R04-OAR-2024-0241-0026"}],"agency_name":"EPA","documents":[{"comment_count":5,"comment_start_date":"2026-08-19","updated_at":"2026-09-19T01:56:48.943-04:00","comment_url":"https://www.regulations.gov/commenton/EPA-R04-OAR-2024-0241-0038","allow_late_comments":false,"id":"EPA-R04-OAR-2024-0241-0038","comment_end_date":"2026-09-19","regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":29,"id":"EPA-R04-OAR-2024-0241","title":"Air Plan Approval; South Carolina; Minor Source Permit Program Revisions"}],"document_number":"2026-16937","effective_on":null,"end_page":53573,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2026/08/19/2026-16937.xml","html_url":"https://www.federalregister.gov/documents/2026/08/19/2026-16937/air-plan-approval-south-carolina-minor-source-permit-program-revisions","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2026-16937?publication_date=2026-08-19","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2026-08-19/2026-16937/mods.xml","not_received_for_publication":null,"page_length":16,"page_views":{"count":687,"last_updated":"2026-10-23 04:15:03 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2026-08-19/pdf/2026-16937.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2026-16937.pdf?1787057119","publication_date":"2026-08-19","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2026/08/19/2026-16937.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"supporting_documents":[{"title":"20170807_SC Clarification and Support Letter for Permitting SIPs","document_id":"EPA-R04-OAR-2024-0241-0036"},{"title":"June 20 2024 Name Change Letter","document_id":"EPA-R04-OAR-2024-0241-0035"},{"title":"SC Registration Permit Letter 20260514","document_id":"EPA-R04-OAR-2024-0241-0034"},{"title":"SC-122 April 24 2020 Submittal Combined","document_id":"EPA-R04-OAR-2024-0241-0033"},{"title":"SC-104 July 25 2016 Submittal Combined","document_id":"EPA-R04-OAR-2024-0241-0032"},{"title":"SC 2013 GA Final SIP Package - compiled","document_id":"EPA-R04-OAR-2024-0241-0031"},{"title":"SC-63 October 1 2007 Submittal Combined","document_id":"EPA-R04-OAR-2024-0241-0029"},{"title":"Ozone_Watch_20260720_084653","document_id":"EPA-R04-OAR-2024-0241-0028"},{"title":"June 20 2024 Name Change Letter","document_id":"EPA-R04-OAR-2024-0241-0027"},{"title":"20260811 Backlogged SIPs Letter to SC","document_id":"EPA-R04-OAR-2024-0241-0026"}],"comments_count":5,"agency_id":"EPA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=EPA-R04-OAR-2024-0241","supporting_documents_count":29,"docket_id":"EPA-R04-OAR-2024-0241","document_id":"EPA-R04-OAR-2024-0241-0038","regulation_id_number":null,"title":"Air Plan Approval; South Carolina; Minor Source Permit Program Revisions","checked_regulationsdotgov_at":"2026-09-20T08:55:04Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":53558,"subtype":null,"title":"Air Plan Approval; South Carolina; Minor Source Permit Program Revisions","toc_doc":"South Carolina; Minor Source Permit Program Revisions","toc_subject":"Air Quality State Implementation Plans; Approvals and Promulgations","topics":["Air pollution control","Carbon monoxide","Environmental protection","Incorporation by reference","Intergovernmental relations","Nitrogen dioxide","Ozone","Particulate matter","Reporting and recordkeeping requirements","Sulfur oxides","Volatile organic compounds"],"type":"Proposed Rule","volume":91}