{"abstract":"A group of organizations petitioned EPA to regulate emissions of carbon dioxide and other greenhouse gases from motor vehicles under the Clean Air Act. For the reasons set forth in this notice, EPA is denying the petition.","action":"Notice of denial of petition for rulemaking.","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/2003/09/08/03-22764.html","cfr_references":[],"citation":"68 FR 52922","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"September 8, 2003.","disposition_notes":null,"docket_ids":["FRL-7554-7"],"dockets":[],"document_number":"03-22764","effective_on":null,"end_page":52933,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2003/09/08/03-22764.xml","html_url":"https://www.federalregister.gov/documents/2003/09/08/03-22764/control-of-emissions-from-new-highway-vehicles-and-engines","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/03-22764?publication_date=2003-09-08","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2003-09-08/03-22764/mods.xml","not_received_for_publication":null,"page_length":12,"page_views":{"count":1133,"last_updated":"2026-10-22 22:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2003-09-08/pdf/03-22764.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"2003-09-08","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2003/09/08/03-22764.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":52922,"subtype":null,"title":"Control of Emissions From New Highway Vehicles and Engines","toc_doc":"International Center for Technology Assessment et al.; emissions control petition denied","toc_subject":"Air pollution control; new motor vehicles and engines:","topics":[],"type":"Notice","volume":68}