{"abstract":"FMCSA proposes to add an exception to the prohibition on gravity and syphon feeds for auxiliary pumps with a fuel tank capacity of less than 5 gallons mounted on the trailer chassis frame or trailer bed, for purposes other than operation of the motor vehicle, that are operational only when the motor vehicle is not in motion. This proposal is in response to a petition for rulemaking from the Truck Trailer Manufacturers Association (TTMA). The proposed change would provide relief from a regulatory requirement without impacting safety.","action":"Notice of proposed rulemaking (NPRM).","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/2025/05/30/2025-09731.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"393","title":49}],"citation":"90 FR 22934","comment_url":null,"comments_close_on":"2025-07-29","correction_of":null,"corrections":[],"dates":"Comments must be received on or before July 29, 2025.","disposition_notes":null,"docket_ids":["Docket No. FMCSA-2025-0120"],"dockets":[{"supporting_documents":[],"agency_name":"FMCSA","documents":[{"comment_count":3,"comment_start_date":"2025-05-30","updated_at":"2025-08-02T01:56:39.087-04:00","comment_url":"https://www.regulations.gov/commenton/FMCSA-2025-0120-0001","allow_late_comments":false,"id":"FMCSA-2025-0120-0001","comment_end_date":"2025-07-30","regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":0,"id":"FMCSA-2025-0120","title":"Parts and Accessories Necessary for Safe Operation; Auxiliary Fuel Tanks"}],"document_number":"2025-09731","effective_on":null,"end_page":22938,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2025/05/30/2025-09731.xml","html_url":"https://www.federalregister.gov/documents/2025/05/30/2025-09731/parts-and-accessories-necessary-for-safe-operation-auxiliary-fuel-tanks","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2025-09731?publication_date=2025-05-30","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2025-05-30/2025-09731/mods.xml","not_received_for_publication":null,"page_length":5,"page_views":{"count":166,"last_updated":"2026-08-25 22:15:03 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2025-05-30/pdf/2025-09731.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2025-09731.pdf?1748376913","publication_date":"2025-05-30","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2025/05/30/2025-09731.txt","regulation_id_number_info":{"2126-AC94":{"issue":"202504","html_url":"https://www.federalregister.gov/regulations/2126-AC94/parts-and-accessories-necessary-for-safe-operation-auxiliary-fuel-tanks","title":"Parts and Accessories Necessary for Safe Operation; Auxiliary Fuel Tanks","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=202504&RIN=2126-AC94&operation=OPERATION_EXPORT_XML","priority_category":"Substantive, Nonsignificant"}},"regulation_id_numbers":["2126-AC94"],"regulations_dot_gov_info":{"supporting_documents":[],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/2126-AC94/parts-and-accessories-necessary-for-safe-operation-auxiliary-fuel-tanks","title":"Parts and Accessories Necessary for Safe Operation; Auxiliary Fuel Tanks"},"comments_count":3,"agency_id":"FMCSA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=FMCSA-2025-0120","supporting_documents_count":0,"docket_id":"FMCSA-2025-0120","document_id":"FMCSA-2025-0120-0001","regulation_id_number":"2126-AC94","title":"Parts and Accessories Necessary for Safe Operation; Auxiliary Fuel Tanks","checked_regulationsdotgov_at":"2025-08-02T15:55:03Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":22934,"subtype":null,"title":"Parts and Accessories Necessary for Safe Operation; Auxiliary Fuel Tanks","toc_doc":"Auxiliary Fuel Tanks","toc_subject":"Parts and Accessories Necessary for Safe Operation","topics":["Highway safety","Motor carriers","Motor vehicle safety"],"type":"Proposed Rule","volume":90}