{"abstract":"The Environmental Protection Agency (EPA) is taking final action to approve revisions to the Maricopa County Air Quality Department (MCAQD) portion of the Arizona State Implementation Plan (SIP). These revisions concern emissions of volatile organic compounds (VOCs), oxides of nitrogen (NO<INF>X</INF>), particulate matter (PM), and oxides of sulfur (SO<INF>X</INF>). We are approving local rules that regulate these emission sources under the Clean Air Act (CAA or the Act).","action":"Final 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/2024/08/20/2024-17500.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"52","title":40}],"citation":"89 FR 67301","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This rule action will be effective September 19, 2024.","disposition_notes":null,"docket_ids":["EPA-R09-OAR-2021-0748","FRL-11882-02-R9"],"dockets":[{"supporting_documents":[{"title":"Rule 42 Justification Letter","document_id":"EPA-R09-OAR-2021-0748-0019"},{"title":"Rule 28 Justification Letter","document_id":"EPA-R09-OAR-2021-0748-0018"},{"title":"MCAQD Rule 22 Recission Document","document_id":"EPA-R09-OAR-2021-0748-0017"},{"title":"Maricopa Recodification Submittal Rules Update","document_id":"EPA-R09-OAR-2021-0748-0016"},{"title":"EPA Memo Recodifications_021290","document_id":"EPA-R09-OAR-2021-0748-0015"},{"title":"B.5 61 FR 3578","document_id":"EPA-R09-OAR-2021-0748-0010"},{"title":"B.4 47 FR 19326","document_id":"EPA-R09-OAR-2021-0748-0009"},{"title":"B.3 47 FR 15579","document_id":"EPA-R09-OAR-2021-0748-0008"},{"title":"B.2 37 FR 15080","document_id":"EPA-R09-OAR-2021-0748-0007"},{"title":"B.1 Maricopa SIP Recodification TSD","document_id":"EPA-R09-OAR-2021-0748-0006"}],"agency_name":"EPA","documents":[{"comment_count":0,"comment_start_date":"2024-08-20","updated_at":"2024-09-03T17:20:24.933-04:00","comment_url":"https://www.regulations.gov/commenton/EPA-R09-OAR-2021-0748-0022","allow_late_comments":false,"id":"EPA-R09-OAR-2021-0748-0022","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":14,"id":"EPA-R09-OAR-2021-0748","title":"Air Plan Approval; Arizona; Maricopa County Air Quality Department"}],"document_number":"2024-17500","effective_on":"2024-09-19","end_page":67303,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2024/08/20/2024-17500.xml","html_url":"https://www.federalregister.gov/documents/2024/08/20/2024-17500/air-plan-revisions-arizona-maricopa-county-air-quality-department","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2024-17500?publication_date=2024-08-20","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2024-08-20/2024-17500/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":230,"last_updated":"2026-10-24 14:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2024-08-20/pdf/2024-17500.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2024-17500.pdf?1724071514","publication_date":"2024-08-20","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2024/08/20/2024-17500.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"supporting_documents":[{"title":"Rule 42 Justification Letter","document_id":"EPA-R09-OAR-2021-0748-0019"},{"title":"Rule 28 Justification Letter","document_id":"EPA-R09-OAR-2021-0748-0018"},{"title":"MCAQD Rule 22 Recission Document","document_id":"EPA-R09-OAR-2021-0748-0017"},{"title":"Maricopa Recodification Submittal Rules Update","document_id":"EPA-R09-OAR-2021-0748-0016"},{"title":"EPA Memo Recodifications_021290","document_id":"EPA-R09-OAR-2021-0748-0015"},{"title":"B.5 61 FR 3578","document_id":"EPA-R09-OAR-2021-0748-0010"},{"title":"B.4 47 FR 19326","document_id":"EPA-R09-OAR-2021-0748-0009"},{"title":"B.3 47 FR 15579","document_id":"EPA-R09-OAR-2021-0748-0008"},{"title":"B.2 37 FR 15080","document_id":"EPA-R09-OAR-2021-0748-0007"},{"title":"B.1 Maricopa SIP Recodification TSD","document_id":"EPA-R09-OAR-2021-0748-0006"}],"comments_count":0,"agency_id":"EPA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=EPA-R09-OAR-2021-0748","supporting_documents_count":14,"docket_id":"EPA-R09-OAR-2021-0748","document_id":"EPA-R09-OAR-2021-0748-0022","regulation_id_number":null,"title":"Air Plan Approval; Arizona; Maricopa County Air Quality Department","checked_regulationsdotgov_at":"2024-08-21T14:00:19Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":67301,"subtype":null,"title":"Air Plan Revisions; Arizona; Maricopa County Air Quality Department","toc_doc":"Arizona; Maricopa County Air Quality Department","toc_subject":"Air Quality State Implementation Plans; Approvals and Promulgations:\n","topics":["Air pollution control","Carbon monoxide","Environmental protection","Incorporation by reference","Intergovernmental relations","Nitrogen oxides","Ozone","Particulate matter","Reporting and recordkeeping requirements","Sulfur oxides","Volatile organic compounds"],"type":"Rule","volume":89}