{"abstract":"The FAA is amending certain airworthiness regulations for transport category airplanes to require fuel tank designs that prevent a fuel tank explosion caused by the propagation of flames, from external fires, through the fuel tank vents. This final rule requires a delay of two minutes and thirty seconds between exposure of external fuel tank vents to ignition sources and explosions caused by propagation of flames into the fuel tank, thus increasing the time available for passenger evacuation and emergency response. These amendments apply to applications for new type certificates and certain applications for amended or supplemental type certificates. The amendments also require certain airplanes produced in the future and operated by air carriers to meet the new standards.","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 Aviation Administration","name":"Federal Aviation Administration","id":159,"url":"https://www.federalregister.gov/agencies/federal-aviation-administration","json_url":"https://www.federalregister.gov/api/v1/agencies/159","parent_id":492,"slug":"federal-aviation-administration"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2016/06/24/2016-14454.html","cfr_references":[{"chapter":null,"citation_url":null,"part":25,"title":14},{"chapter":null,"citation_url":null,"part":121,"title":14},{"chapter":null,"citation_url":null,"part":129,"title":14}],"citation":"81 FR 41200","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"Effective August 23, 2016. The compliance date for the requirements in Sec. 25.975 is August 23, 2016. The compliance date for the requirements in Sec. Sec. 121.1119 and 129.119 is August 23, 2018.","disposition_notes":null,"docket_ids":["Docket No.: FAA-2014-0500","Amdt. Nos. 25-142, 21-376, and 129-53"],"dockets":[{"supporting_documents":[{"title":"U.S. DOT/FAA - Final Rule for Fuel System Vent Fire Protection","document_id":"FAA-2014-0500-0020"},{"title":"AC 25.975-1 Fuel Vent Fire Protection 6-24-16 FINAL","document_id":"FAA-2014-0500-0019"},{"title":"U.S. DOT/FAA - Proposed AC 25.975-X Fuel Vent Fire Protection","document_id":"FAA-2014-0500-0006"},{"title":"U.S. DOT/FAA - Follow -up Letter re: AIR-1 (Hickey) - Do By Other Means","document_id":"FAA-2014-0500-0005"},{"title":"U.S. DOT/FAA - Final Reports (2)","document_id":"FAA-2014-0500-0004"},{"title":"U.S. DOT/FAA - SAFER Final Report","document_id":"FAA-2014-0500-0003"},{"title":"U.S. DOT/FAA - Regulatory Evaluation","document_id":"FAA-2014-0500-0002"}],"agency_name":null,"documents":[{"comment_count":0,"comment_start_date":"2016-06-24","updated_at":"2023-03-01T13:23:20.139-05:00","comment_url":"https://www.regulations.gov/commenton/FAA-2014-0500-0018","allow_late_comments":null,"id":"FAA-2014-0500-0018","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":7,"id":"FAA-2014-0500","title":"Fuel Tank Vent Fire Protection"}],"document_number":"2016-14454","effective_on":"2016-08-23","end_page":41208,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2016/06/24/2016-14454.xml","html_url":"https://www.federalregister.gov/documents/2016/06/24/2016-14454/fuel-tank-vent-fire-protection","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2016-14454?publication_date=2016-06-24","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2016-06-24/2016-14454/mods.xml","not_received_for_publication":null,"page_length":9,"page_views":{"count":3653,"last_updated":"2026-10-24 02:15:05 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2016-06-24/pdf/2016-14454.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2016-14454.pdf?1466685934","publication_date":"2016-06-24","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2016/06/24/2016-14454.txt","regulation_id_number_info":{"2120-AK30":{"issue":"201604","html_url":"https://www.federalregister.gov/regulations/2120-AK30/requirements-for-protection-of-fuel-tanks-from-flame-propagation-through-fuel-vent-lines","title":"Requirements for Protection of Fuel Tanks from Flame Propagation Through Fuel Vent Lines","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=201604&RIN=2120-AK30&operation=OPERATION_EXPORT_XML","priority_category":"Substantive, Nonsignificant"}},"regulation_id_numbers":["2120-AK30"],"regulations_dot_gov_info":{"supporting_documents":[{"title":"U.S. DOT/FAA - Final Rule for Fuel System Vent Fire Protection","document_id":"FAA-2014-0500-0020"},{"title":"AC 25.975-1 Fuel Vent Fire Protection 6-24-16 FINAL","document_id":"FAA-2014-0500-0019"},{"title":"U.S. DOT/FAA - Proposed AC 25.975-X Fuel Vent Fire Protection","document_id":"FAA-2014-0500-0006"},{"title":"U.S. DOT/FAA - Follow -up Letter re: AIR-1 (Hickey) - Do By Other Means","document_id":"FAA-2014-0500-0005"},{"title":"U.S. DOT/FAA - Final Reports (2)","document_id":"FAA-2014-0500-0004"},{"title":"U.S. DOT/FAA - SAFER Final Report","document_id":"FAA-2014-0500-0003"},{"title":"U.S. DOT/FAA - Regulatory Evaluation","document_id":"FAA-2014-0500-0002"}],"comments_count":0,"agency_id":"FAA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=FAA-2014-0500","supporting_documents_count":7,"docket_id":"FAA-2014-0500","document_id":"FAA-2014-0500-0018","regulation_id_number":null,"title":"Fuel Tank Vent Fire Protection","checked_regulationsdotgov_at":"2023-03-01T18:23:19Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":41200,"subtype":null,"title":"Fuel Tank Vent Fire Protection","toc_doc":"Fuel Tank Vent Fire Protection","toc_subject":null,"topics":["Air carriers","Aircraft","Aviation safety","Reporting and recordkeeping requirements"],"type":"Rule","volume":81}