{"abstract":"FMCSA removes the requirement in the Federal Motor Carrier Safety Regulations (FMCSR) that a liquid fuel tank manufactured on or after January 1, 1973, be designed and constructed so that it cannot be filled, in a normal filling operation, with a quantity of fuel that exceeds 95 percent of the tank's liquid capacity. This final rule responds to a petition for rulemaking from the Commercial Vehicle Safety Alliance (CVSA). The revision removes an unnecessary and outdated requirement from the FMCSRs.","action":"Final rule.","agencies":[{"raw_name":"DEPARTMENT OF TRANSPORTATION","name":"Transportation Department","id":492,"url":"https://www.federalregister.gov/agencies/transportation-department","json_url":"https://www.federalregister.gov/api/v1/agencies/492","parent_id":null,"slug":"transportation-department"},{"raw_name":"Federal Motor Carrier Safety Administration","name":"Federal Motor Carrier Safety Administration","id":181,"url":"https://www.federalregister.gov/agencies/federal-motor-carrier-safety-administration","json_url":"https://www.federalregister.gov/api/v1/agencies/181","parent_id":492,"slug":"federal-motor-carrier-safety-administration"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2026/02/19/2026-03265.html","cfr_references":[{"chapter":null,"citation_url":null,"part":393,"title":49}],"citation":"91 FR 7880","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"Effective March 23, 2026.","disposition_notes":null,"docket_ids":["Docket No. FMCSA-2025-0117"],"dockets":[{"supporting_documents":[],"agency_name":"FMCSA","documents":[{"comment_count":0,"comment_start_date":"2026-02-19","updated_at":"2026-02-19T08:57:19.982-05:00","comment_url":"https://www.regulations.gov/commenton/FMCSA-2025-0117-0006","allow_late_comments":false,"id":"FMCSA-2025-0117-0006","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":0,"id":"FMCSA-2025-0117","title":"Parts and Accessories Necessary for Safe Operation; Fuel Tank Overfill Restriction"}],"document_number":"2026-03265","effective_on":"2026-03-23","end_page":7884,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2026/02/19/2026-03265.xml","html_url":"https://www.federalregister.gov/documents/2026/02/19/2026-03265/parts-and-accessories-necessary-for-safe-operation-fuel-tank-overfill-restriction","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2026-03265?publication_date=2026-02-19","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2026-02-19/2026-03265/mods.xml","not_received_for_publication":null,"page_length":5,"page_views":{"count":247,"last_updated":"2026-04-04 12:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2026-02-19/pdf/2026-03265.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2026-03265.pdf?1771422316","publication_date":"2026-02-19","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2026/02/19/2026-03265.txt","regulation_id_number_info":{"2126-AC91":{"issue":"202504","html_url":"https://www.federalregister.gov/regulations/2126-AC91/parts-and-accessories-necessary-for-safe-operation-fuel-tank-overfill-restriction","title":"Parts and Accessories Necessary for Safe Operation; Fuel Tank Overfill Restriction","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=202504&RIN=2126-AC91&operation=OPERATION_EXPORT_XML","priority_category":"Substantive, Nonsignificant"}},"regulation_id_numbers":["2126-AC91"],"regulations_dot_gov_info":{"supporting_documents":[],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/2126-AC91/parts-and-accessories-necessary-for-safe-operation-fuel-tank-overfill-restriction","title":"Parts and Accessories Necessary for Safe Operation; Fuel Tank Overfill Restriction"},"comments_count":0,"agency_id":"FMCSA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=FMCSA-2025-0117","supporting_documents_count":0,"docket_id":"FMCSA-2025-0117","document_id":"FMCSA-2025-0117-0006","regulation_id_number":"2126-AC91","title":"Parts and Accessories Necessary for Safe Operation; Fuel Tank Overfill Restriction","checked_regulationsdotgov_at":"2026-02-20T17:55:03Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":7880,"subtype":null,"title":"Parts and Accessories Necessary for Safe Operation; Fuel Tank Overfill Restriction","toc_doc":"Fuel Tank Overfill Restriction","toc_subject":"Parts and Accessories Necessary for Safe Operation","topics":["Highway safety","Motor carriers","Motor vehicle safety"],"type":"Rule","volume":91}