{"abstract":"The Environmental Protection Agency (EPA) is proposing to approve a State plan submitted by the Maricopa County Air Quality Department (MCAQD). This plan pertains to the regulation of landfill gas and its components from existing municipal solid waste (MSW) landfills. Maricopa's county plan was submitted in response to the EPA's promulgation of Emissions Guidelines and Compliance Times for MSW landfills. This action is being taken under the Clean Air Act (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/2026/11/05/2026-22585.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"62","title":40}],"citation":"91 FR 69761","comment_url":"http://www.regulations.gov/commenton/EPA-R09-OAR-2026-5710-0001","comments_close_on":"2026-12-07","correction_of":null,"corrections":[],"dates":"Written comments must be received on or before December 7, 2026.","disposition_notes":null,"docket_ids":["EPA-R09-OAR-2026-5710","FRL-13516-01-R9"],"dockets":[{"supporting_documents":[{"title":"Verkamp email 06102026","document_id":"EPA-R09-OAR-2026-5710-0005"},{"title":"Maricopa MOA 070523","document_id":"EPA-R09-OAR-2026-5710-0004"},{"title":"Maricopa Landfill Plan 10042022","document_id":"EPA-R09-OAR-2026-5710-0003"},{"title":"Maricopa County AZ MSWL TSD Checklist Final","document_id":"EPA-R09-OAR-2026-5710-0002"}],"agency_name":"EPA","documents":[{"comment_count":1,"comment_start_date":"2026-11-05","updated_at":"2026-11-06T00:56:30.819-05:00","comment_url":"https://www.regulations.gov/commenton/EPA-R09-OAR-2026-5710-0001","allow_late_comments":false,"id":"EPA-R09-OAR-2026-5710-0001","comment_end_date":"2026-12-08","regulations_dot_gov_open_for_comment":true}],"supporting_documents_count":4,"id":"EPA-R09-OAR-2026-5710","title":"Approval and Promulgation of State Plans for Designated Facilities and Pollutants;  Arizona; Control of Emissions from Existing Municipal Solid Waste Landfills"}],"document_number":"2026-22585","effective_on":null,"end_page":69763,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2026/11/05/2026-22585.xml","html_url":"https://www.federalregister.gov/documents/2026/11/05/2026-22585/approval-and-promulgation-of-state-plans-for-designated-facilities-and-pollutants-arizona-control-of","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2026-22585?publication_date=2026-11-05","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2026-11-05/2026-22585/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":90,"last_updated":"2026-11-08 20:15:04 -0500"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2026-11-05/pdf/2026-22585.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2026-22585.pdf?1793799915","publication_date":"2026-11-05","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2026/11/05/2026-22585.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"supporting_documents":[{"title":"Verkamp email 06102026","document_id":"EPA-R09-OAR-2026-5710-0005"},{"title":"Maricopa MOA 070523","document_id":"EPA-R09-OAR-2026-5710-0004"},{"title":"Maricopa Landfill Plan 10042022","document_id":"EPA-R09-OAR-2026-5710-0003"},{"title":"Maricopa County AZ MSWL TSD Checklist Final","document_id":"EPA-R09-OAR-2026-5710-0002"}],"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-R09-OAR-2026-5710","supporting_documents_count":4,"docket_id":"EPA-R09-OAR-2026-5710","document_id":"EPA-R09-OAR-2026-5710-0001","regulation_id_number":null,"title":"Approval and Promulgation of State Plans for Designated Facilities and Pollutants;  Arizona; Control of Emissions from Existing Municipal Solid Waste Landfills","checked_regulationsdotgov_at":"2026-11-07T09:55:04Z"},"regulations_dot_gov_url":"http://www.regulations.gov/commenton/EPA-R09-OAR-2026-5710-0001","significant":null,"signing_date":null,"start_page":69761,"subtype":null,"title":"Approval and Promulgation of State Plans for Designated Facilities and Pollutants; Arizona; Control of Emissions From Existing Municipal Solid Waste Landfills","toc_doc":"Arizona; Control of Emissions from Existing Municipal Solid Waste Landfills","toc_subject":"State Plans for Designated Facilities and Pollutants; Approvals and Promulgations","topics":["Air pollution control","Environmental protection","Incorporation by reference","Intergovernmental relations","Reporting and recordkeeping requirements","Waste treatment and disposal"],"type":"Proposed Rule","volume":91}