{"abstract":"The Environmental Protection Agency (EPA) is proposing to partially approve and partially disapprove the regional haze state implementation plan (SIP) submission submitted by the State of Wyoming on August 10, 2022 (Wyoming's 2022 SIP submission) under the Clean Air Act (CAA) and the EPA's Regional Haze Rule (RHR) for the program's second implementation period. Wyoming's 2022 SIP submission addresses the requirement that states revise their long-term strategies every implementation period to make reasonable progress towards the national goal of preventing any future, and remedying any existing, anthropogenic impairment of visibility, including regional haze, in mandatory Class I Federal areas. Wyoming's 2022 SIP submission also addresses other applicable requirements for the second implementation period of the regional haze program. The EPA is taking this action pursuant to the CAA.","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/2024/08/01/2024-16718.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"52","title":40}],"citation":"89 FR 63030","comment_url":null,"comments_close_on":"2024-09-03","correction_of":null,"corrections":[],"dates":"Written comments must be received on or before September 3, 2024.","disposition_notes":null,"docket_ids":["EPA-R08-OAR-2023-0489","FRL-12135-01-R8"],"dockets":[{"supporting_documents":[{"title":"Responses to Comments Wyoming Notice of Final Rulemaking","document_id":"EPA-R08-OAR-2023-0489-0480"},{"title":"Massachusetts Regional Haze SIP_Appendix 39_July 22 2021","document_id":"EPA-R08-OAR-2023-0489-0474"},{"title":"EPA November 1 2021 Comment Letter","document_id":"EPA-R08-OAR-2023-0489-0473"},{"title":"EPA AP 42 Compilation of Air Emissions Factors from Stationary Sources_Chapter 1.4 Natural Gas Combustion_July 1998","document_id":"EPA-R08-OAR-2023-0489-0472"},{"title":"EPA response to comment period extension and hearing request_WYDEQ","document_id":"EPA-R08-OAR-2023-0489-0470"},{"title":"WRAP Technical Support Systems for Regional Haze Planning Emissions Methods Results and References_September 30 2021","document_id":"EPA-R08-OAR-2023-0489-0028"},{"title":"Recommendation for the Use of Patched and Substituted Data and Clarification of Data Completeness _June 3 2020","document_id":"EPA-R08-OAR-2023-0489-0027"},{"title":"Technical Support Document Oldcastle Trident Federal Implementation Plan Revision_March 8 2017","document_id":"EPA-R08-OAR-2023-0489-0026"},{"title":"WRAP PAC2 and 2028OTBa2_August 17 2021","document_id":"EPA-R08-OAR-2023-0489-0025"},{"title":"WRAP 2028OTBa2 and RepBase2_August 17 2021","document_id":"EPA-R08-OAR-2023-0489-0024"}],"agency_name":"EPA","documents":[{"comment_count":6391,"comment_start_date":"2024-08-01","updated_at":"2024-09-18T01:00:59.887-04:00","comment_url":"https://www.regulations.gov/commenton/EPA-R08-OAR-2023-0489-0001","allow_late_comments":false,"id":"EPA-R08-OAR-2023-0489-0001","comment_end_date":"2024-09-04","regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":40,"id":"EPA-R08-OAR-2023-0489","title":"Air Plan Partial Approval and Partial Disapproval; Wyoming; Regional Haze Plan for the Second Implementation Period"}],"document_number":"2024-16718","effective_on":null,"end_page":63071,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2024/08/01/2024-16718.xml","html_url":"https://www.federalregister.gov/documents/2024/08/01/2024-16718/air-plan-partial-approval-and-partial-disapproval-wyoming-regional-haze-plan-for-the-second","images":{"EP01AU24.002":{"large":"https://img.federalregister.gov/EP01AU24.002/EP01AU24.002_large.png","medium":"https://img.federalregister.gov/EP01AU24.002/EP01AU24.002_medium.png","original_size":"https://img.federalregister.gov/EP01AU24.002/EP01AU24.002_original_size.png"},"EP01AU24.001":{"large":"https://img.federalregister.gov/EP01AU24.001/EP01AU24.001_large.png","medium":"https://img.federalregister.gov/EP01AU24.001/EP01AU24.001_medium.png","original_size":"https://img.federalregister.gov/EP01AU24.001/EP01AU24.001_original_size.png"}},"images_metadata":{"EP01AU24.002":{"large":{"identifier":"EP01AU24.002","content_type":"image/png","size":62058,"width":822,"sha":"45aff762048732effce4fb47d429a1fb","url":"https://img.federalregister.gov/EP01AU24.002/EP01AU24.002_large.png","height":742},"medium":{"identifier":"EP01AU24.002","content_type":"image/png","size":34433,"width":574,"sha":"925d56ad9cd84ea05e73e01bb3f34fe1","url":"https://img.federalregister.gov/EP01AU24.002/EP01AU24.002_medium.png","height":518},"original_size":{"identifier":"EP01AU24.002","content_type":"image/png","size":35949,"width":2167,"sha":"219a063b0fa00851897cc31e11ed4454","url":"https://img.federalregister.gov/EP01AU24.002/EP01AU24.002_original_size.png","height":1956}},"EP01AU24.001":{"large":{"identifier":"EP01AU24.001","content_type":"image/png","size":58171,"width":822,"sha":"a5b5f74779c5543c7d39aa883fa90545","url":"https://img.federalregister.gov/EP01AU24.001/EP01AU24.001_large.png","height":649},"medium":{"identifier":"EP01AU24.001","content_type":"image/png","size":30684,"width":574,"sha":"84bedc0ecf2117cd8efaf410a0ecba2b","url":"https://img.federalregister.gov/EP01AU24.001/EP01AU24.001_medium.png","height":453},"original_size":{"identifier":"EP01AU24.001","content_type":"image/png","size":36678,"width":2167,"sha":"932c7f7068cf3669f9aa49edc9b5a954","url":"https://img.federalregister.gov/EP01AU24.001/EP01AU24.001_original_size.png","height":1710}}},"json_url":"https://www.federalregister.gov/api/v1/documents/2024-16718?publication_date=2024-08-01","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2024-08-01/2024-16718/mods.xml","not_received_for_publication":null,"page_length":42,"page_views":{"count":563,"last_updated":"2026-10-24 18:15:05 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2024-08-01/pdf/2024-16718.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2024-16718.pdf?1722429916","publication_date":"2024-08-01","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2024/08/01/2024-16718.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"supporting_documents":[{"title":"Responses to Comments Wyoming Notice of Final Rulemaking","document_id":"EPA-R08-OAR-2023-0489-0480"},{"title":"Massachusetts Regional Haze SIP_Appendix 39_July 22 2021","document_id":"EPA-R08-OAR-2023-0489-0474"},{"title":"EPA November 1 2021 Comment Letter","document_id":"EPA-R08-OAR-2023-0489-0473"},{"title":"EPA AP 42 Compilation of Air Emissions Factors from Stationary Sources_Chapter 1.4 Natural Gas Combustion_July 1998","document_id":"EPA-R08-OAR-2023-0489-0472"},{"title":"EPA response to comment period extension and hearing request_WYDEQ","document_id":"EPA-R08-OAR-2023-0489-0470"},{"title":"WRAP Technical Support Systems for Regional Haze Planning Emissions Methods Results and References_September 30 2021","document_id":"EPA-R08-OAR-2023-0489-0028"},{"title":"Recommendation for the Use of Patched and Substituted Data and Clarification of Data Completeness _June 3 2020","document_id":"EPA-R08-OAR-2023-0489-0027"},{"title":"Technical Support Document Oldcastle Trident Federal Implementation Plan Revision_March 8 2017","document_id":"EPA-R08-OAR-2023-0489-0026"},{"title":"WRAP PAC2 and 2028OTBa2_August 17 2021","document_id":"EPA-R08-OAR-2023-0489-0025"},{"title":"WRAP 2028OTBa2 and RepBase2_August 17 2021","document_id":"EPA-R08-OAR-2023-0489-0024"}],"comments_count":6391,"agency_id":"EPA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=EPA-R08-OAR-2023-0489","supporting_documents_count":40,"docket_id":"EPA-R08-OAR-2023-0489","document_id":"EPA-R08-OAR-2023-0489-0001","regulation_id_number":null,"title":"Air Plan Partial Approval and Partial Disapproval; Wyoming; Regional Haze Plan for the Second Implementation Period","checked_regulationsdotgov_at":"2024-09-19T01:00:06Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":63030,"subtype":null,"title":"Air Plan Partial Approval and Partial Disapproval; Wyoming; Regional Haze Plan for the Second Implementation Period","toc_doc":"Wyoming; Regional Haze Plan for the Second Implementation Period","toc_subject":"Air Quality State Implementation Plans; Approvals and Promulgations:\n","topics":["Air pollution control","Carbon monoxide","Environmental protection","Greenhouse gases","Incorporation by reference","Intergovernmental relations","Lead","Nitrogen dioxide","Ozone","Particulate matter","Reporting and recordkeeping requirements","Sulfur oxides","Volatile organic compounds"],"type":"Proposed Rule","volume":89}