{"abstract":"EPA is taking final action to approve a revision to the California State Implementation Plan (SIP) submitted by the California Air Resources Board (CARB or Board). This revision concerns two regulations that reduce emissions of diesel particulate matter (PM), oxides of nitrogen (NO<INF>X</INF>), and other pollutants from in-use, heavy-duty diesel-fueled trucks and buses, and drayage trucks. EPA is approving this SIP revision because the Agency has determined that the regulations are consistent with the relevant Clean Air Act requirements, policies and guidance. Final approval of the two regulations and incorporation of them into the California SIP makes them federally enforceable.","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/2012/04/04/2012-7023.html","cfr_references":[{"chapter":null,"citation_url":null,"part":52,"title":40}],"citation":"77 FR 20308","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"Effective Date: This rule is effective on May 4, 2012.","disposition_notes":null,"docket_ids":["EPA-R09-OAR-2011-0544","FRL-9633-3"],"dockets":[],"document_number":"2012-7023","effective_on":"2012-05-04","end_page":20314,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2012/04/04/2012-7023.xml","html_url":"https://www.federalregister.gov/documents/2012/04/04/2012-7023/approval-and-promulgation-of-implementations-plans-california-air-resources-board-in-use-heavy-duty","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2012-7023?publication_date=2012-04-04","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2012-04-04/2012-7023/mods.xml","not_received_for_publication":null,"page_length":7,"page_views":{"count":641,"last_updated":"2026-04-04 14:15:05 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2012-04-04/pdf/2012-7023.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2012-07023.pdf?1333457345","publication_date":"2012-04-04","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2012/04/04/2012-7023.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"supporting_documents":[{"title":"INDEX for final federal register","document_id":"EPA-R09-OAR-2011-0544-0050"},{"title":"21 Additional Documents (State)","document_id":"EPA-R09-OAR-2011-0544-0049"},{"title":"Prepublication signed 1-26-2012, Final Rule, Truck and Bus and Drayage Regulations","document_id":"EPA-R09-OAR-2011-0544-0048"},{"title":"Additional Documents, September 21, December 9, and December 14, 2011: Truck and Bus and Drayage Submittals","document_id":"EPA-R09-OAR-2011-0544-0047"},{"title":"Prepublication signed version of Final Rule, signed 12-9-2011","document_id":"EPA-R09-OAR-2011-0544-0046"},{"title":"Submittal letter dated September 21, 2011 to Jared Blumenfeld from James Goldstene with enclosures.","document_id":"EPA-R09-OAR-2011-0544-0045"},{"title":"Submittal letter dated November 2, 2011 to Jared Blumenfeld from James Goldstene with enclosure.","document_id":"EPA-R09-OAR-2011-0544-0044"},{"title":"Latest INDEX updated 12-7-2011","document_id":"EPA-R09-OAR-2011-0544-0042"},{"title":"Attachment 1: Proposed 15-Day Amendments to the Regulation for Fuel Sulfur and Other Operation Requirements. . . July 25, 2011","document_id":"EPA-R09-OAR-2011-0544-0039"},{"title":"Resolution 11-25: July 25, 2011","document_id":"EPA-R09-OAR-2011-0544-0038"}],"comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=EPA-R09-OAR-2011-0544","supporting_documents_count":39,"docket_id":"EPA-R09-OAR-2011-0544","regulation_id_number":null,"title":"Approval and Promulgation of Implementations Plans; California Air Resources Board – In-Use Heavy-Duty Diesel-Fueled Truck and Bus Regulation, Drayage Truck Regulation and Ocean-Going Vessels Clean Fuels Regulation","checked_regulationsdotgov_at":"2012-04-27T21:55:15Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":20308,"subtype":null,"title":"Approval and Promulgation of Implementations Plans; California Air Resources Board-In-Use Heavy-Duty Diesel-Fueled Truck and Bus Regulation, and Drayage Truck Regulation","toc_doc":"California Air Resources Board  In-Use Heavy-Duty Diesel-Fueled Truck and Bus Regulation, and Drayage Truck Regulation","toc_subject":"Approvals and Promulgations of Implementations Plans:","topics":["Air pollution control","Environmental protection","Incorporation by reference","Intergovernmental relations","Nitrogen dioxide","Ozone","Particulate matter","Reporting and recordkeeping requirements"],"type":"Rule","volume":77}