{"abstract":"The Environmental Protection Agency (EPA) is reopening the public comment period for 15 days for a proposed rule published August 30, 2024. Reopening the public comment period is focused exclusively on the references to various permit conditions within three Director's Final Findings and Orders (DFFOs) included in the docket that were issued by the Ohio Environmental Protection Agency (Ohio EPA) as those conditions apply to the limits in the DFFOs for Cardinal Power Plant, Ohio Valley Electric Corp.--Kyger Creek, and General James M. Gavin Power Plant.","action":"Proposed rule; reopening of comment period.","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/2025/02/28/2025-03196.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"52","title":40}],"citation":"90 FR 10876","comment_url":null,"comments_close_on":"2025-03-17","correction_of":null,"corrections":[],"dates":"The comment period for the proposed rule published August 30, 2024, at 89 FR 71124, which ended on September 30, 2024, and was extended until October 15, 2024, at 89 FR 76442, is being reopened. Comments must be received on or before March 17, 2025.","disposition_notes":null,"docket_ids":["EPA-R05-OAR-2021-0544","FRL-12175-04-R5"],"dockets":[{"supporting_documents":[{"title":"Supplement Attachment2_NPS-OH-RHCalculationWorkbooks - Gavin 2 existing WFGD (2022)","document_id":"EPA-R05-OAR-2021-0544-0135"},{"title":"Supplement AppG_RegHazeSupplement2024RTC","document_id":"EPA-R05-OAR-2021-0544-0131"},{"title":"Supplement APPC7_2_Ex. 4 - NM SIP Revision Webinar Presentation","document_id":"EPA-R05-OAR-2021-0544-0115"},{"title":"Supplement APPC7_2_Ex. 1 Attachment B - Highest EGU S Coals","document_id":"EPA-R05-OAR-2021-0544-0110"},{"title":"Supplement APPC7_2_Ex. 1 Attachment A - Best Performing SCR Systems","document_id":"EPA-R05-OAR-2021-0544-0109"},{"title":"Supplement AppB_Kyger NOx limit 1-8-2024 Final","document_id":"EPA-R05-OAR-2021-0544-0099"},{"title":"Supplement to Ohio’s Regional Haze State Implementation Plan (SIP) for the Second Planning Period","document_id":"EPA-R05-OAR-2021-0544-0096"},{"title":"RUE - DPL JM Stuart - Unit 4 Dated 2018","document_id":"EPA-R05-OAR-2021-0544-0090"},{"title":"RUE - DPL JM Stuart - Unit 3 Dated 2018","document_id":"EPA-R05-OAR-2021-0544-0089"},{"title":"RUE - Conesville - Unit 6 (B008) Dated 2020","document_id":"EPA-R05-OAR-2021-0544-0086"}],"agency_name":"EPA","documents":[{"comment_count":2,"comment_start_date":"2025-02-28","updated_at":"2025-03-18T01:56:17.331-04:00","comment_url":"https://www.regulations.gov/commenton/EPA-R05-OAR-2021-0544-0155","allow_late_comments":false,"id":"EPA-R05-OAR-2021-0544-0155","comment_end_date":"2025-03-18","regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":144,"id":"EPA-R05-OAR-2021-0544","title":"Ohio EPA Regional Haze SIP for the Second Implementation Period"}],"document_number":"2025-03196","effective_on":"2024-08-30","end_page":10877,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2025/02/28/2025-03196.xml","html_url":"https://www.federalregister.gov/documents/2025/02/28/2025-03196/air-plan-approval-ohio-regional-haze-plan-for-the-second-implementation-period","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2025-03196?publication_date=2025-02-28","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2025-02-28/2025-03196/mods.xml","not_received_for_publication":null,"page_length":2,"page_views":{"count":277,"last_updated":"2026-10-23 06:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2025-02-28/pdf/2025-03196.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2025-03196.pdf?1740663910","publication_date":"2025-02-28","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2025/02/28/2025-03196.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"supporting_documents":[{"title":"Supplement Attachment2_NPS-OH-RHCalculationWorkbooks - Gavin 2 existing WFGD (2022)","document_id":"EPA-R05-OAR-2021-0544-0135"},{"title":"Supplement AppG_RegHazeSupplement2024RTC","document_id":"EPA-R05-OAR-2021-0544-0131"},{"title":"Supplement APPC7_2_Ex. 4 - NM SIP Revision Webinar Presentation","document_id":"EPA-R05-OAR-2021-0544-0115"},{"title":"Supplement APPC7_2_Ex. 1 Attachment B - Highest EGU S Coals","document_id":"EPA-R05-OAR-2021-0544-0110"},{"title":"Supplement APPC7_2_Ex. 1 Attachment A - Best Performing SCR Systems","document_id":"EPA-R05-OAR-2021-0544-0109"},{"title":"Supplement AppB_Kyger NOx limit 1-8-2024 Final","document_id":"EPA-R05-OAR-2021-0544-0099"},{"title":"Supplement to Ohio’s Regional Haze State Implementation Plan (SIP) for the Second Planning Period","document_id":"EPA-R05-OAR-2021-0544-0096"},{"title":"RUE - DPL JM Stuart - Unit 4 Dated 2018","document_id":"EPA-R05-OAR-2021-0544-0090"},{"title":"RUE - DPL JM Stuart - Unit 3 Dated 2018","document_id":"EPA-R05-OAR-2021-0544-0089"},{"title":"RUE - Conesville - Unit 6 (B008) Dated 2020","document_id":"EPA-R05-OAR-2021-0544-0086"}],"comments_count":2,"agency_id":"EPA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=EPA-R05-OAR-2021-0544","supporting_documents_count":144,"docket_id":"EPA-R05-OAR-2021-0544","document_id":"EPA-R05-OAR-2021-0544-0155","regulation_id_number":null,"title":"Ohio EPA Regional Haze SIP for the Second Implementation Period","checked_regulationsdotgov_at":"2025-03-19T00:55:03Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":10876,"subtype":null,"title":"Air Plan Approval; Ohio; Regional Haze Plan for the Second Implementation Period","toc_doc":"Ohio; Regional Haze Plan for the Second Implementation Period","toc_subject":"Air Quality State Implementation Plans; Approvals and Promulgations","topics":[],"type":"Proposed Rule","volume":90}