{"abstract":"The Environmental Protection Agency (EPA) is proposing to determine that the Los Angeles-South Coast Air Basin (\"South Coast\") ozone nonattainment area failed to attain the 1997 8-hour ozone national ambient air quality standard by its June 15, 2024 \"Extreme\" area attainment date. This proposed determination is based on quality- assured and certified ambient air quality monitoring data from 2021 through 2023.","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/2024/08/15/2024-17573.html","cfr_references":[{"chapter":null,"citation_url":null,"part":52,"title":40}],"citation":"89 FR 66291","comment_url":null,"comments_close_on":"2024-09-16","correction_of":null,"corrections":[],"dates":"Comments must be received on or before September 16, 2024.","disposition_notes":null,"docket_ids":["EPA-R09-OAR-2024-0327","FRL-12106-01-R9"],"dockets":[{"supporting_documents":[{"title":"C. Additional Documents for Proposed Rulemaking","document_id":"EPA-R09-OAR-2024-0327-0005"},{"title":"B. State Plans, Support Documents, Reports, and Correspondence","document_id":"EPA-R09-OAR-2024-0327-0004"},{"title":"A. U.S. EPA Guidance Documents, Policies, and Rulemakings","document_id":"EPA-R09-OAR-2024-0327-0003"},{"title":"Docket index NPRM_SC 1997 O3 FFA","document_id":"EPA-R09-OAR-2024-0327-0002"}],"agency_name":"EPA","documents":[{"comment_count":3,"comment_start_date":"2024-08-15","updated_at":"2024-09-18T01:00:59.587-04:00","comment_url":"https://www.regulations.gov/commenton/EPA-R09-OAR-2024-0327-0001","allow_late_comments":false,"id":"EPA-R09-OAR-2024-0327-0001","comment_end_date":"2024-09-17","regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":4,"id":"EPA-R09-OAR-2024-0327","title":"Finding of Failure to Attain the 1997 8-Hour Ozone Standards; California; Los Angeles-South Coast Air Basin"}],"document_number":"2024-17573","effective_on":null,"end_page":66295,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2024/08/15/2024-17573.xml","html_url":"https://www.federalregister.gov/documents/2024/08/15/2024-17573/finding-of-failure-to-attain-the-1997-8-hour-ozone-standards-california-los-angeles-south-coast-air","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2024-17573?publication_date=2024-08-15","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2024-08-15/2024-17573/mods.xml","not_received_for_publication":null,"page_length":5,"page_views":{"count":543,"last_updated":"2026-04-04 18:15:03 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2024-08-15/pdf/2024-17573.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2024-17573.pdf?1723639517","publication_date":"2024-08-15","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2024/08/15/2024-17573.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"supporting_documents":[{"title":"C. Additional Documents for Proposed Rulemaking","document_id":"EPA-R09-OAR-2024-0327-0005"},{"title":"B. State Plans, Support Documents, Reports, and Correspondence","document_id":"EPA-R09-OAR-2024-0327-0004"},{"title":"A. U.S. EPA Guidance Documents, Policies, and Rulemakings","document_id":"EPA-R09-OAR-2024-0327-0003"},{"title":"Docket index NPRM_SC 1997 O3 FFA","document_id":"EPA-R09-OAR-2024-0327-0002"}],"comments_count":3,"agency_id":"EPA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=EPA-R09-OAR-2024-0327","supporting_documents_count":4,"docket_id":"EPA-R09-OAR-2024-0327","document_id":"EPA-R09-OAR-2024-0327-0001","regulation_id_number":null,"title":"Finding of Failure to Attain the 1997 8-Hour Ozone Standards; California; Los Angeles-South Coast Air Basin","checked_regulationsdotgov_at":"2024-09-19T01:00:06Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":66291,"subtype":null,"title":"Finding of Failure To Attain the 1997 8-Hour Ozone Standards; California; Los Angeles-South Coast Air Basin","toc_doc":"California; Los Angeles-South Coast Air Basin; Finding of Failure to Attain the 1997 8-Hour Ozone Standards","toc_subject":"Air Quality State Implementation Plans; Approvals and Promulgations:\n","topics":["Air pollution control","Environmental protection","Incorporation by reference","Intergovernmental relations","Nitrogen oxides","Ozone","Reporting and recordkeeping requirements","Volatile organic compounds"],"type":"Proposed Rule","volume":89}