{"abstract":"The Department of Transportation (Department or DOT) is issuing this final rule to implement the Fifth Circuit's vacatur of the Department's 2024 Final Rule, Enhancing Transparency of Airline Ancillary Service Fees. Because the legal effect of the court's decision is to reinstate the rules previously in force, this action revises the Code of Federal Regulations (CFR) to restore the Department's regulations on the disclosure of fees for ancillary services as they existed before publication of the 2024 Rule, returning to the standards established in a rule issued in 2011.","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":"Office of the Secretary"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2026/07/02/2026-13450.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"259","title":14},{"chapter":null,"citation_url":null,"part":"399","title":14}],"citation":"91 FR 40368","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This final rule is effective July 2, 2026.","disposition_notes":null,"docket_ids":["Docket No. DOT-OST-2026-0199"],"dockets":[{"supporting_documents":[],"agency_name":"DOT","documents":[{"comment_count":0,"comment_start_date":"2026-07-02","updated_at":"2026-07-02T09:03:34.084-04:00","comment_url":"https://www.regulations.gov/commenton/DOT-OST-2026-0199-0001","allow_late_comments":false,"id":"DOT-OST-2026-0199-0001","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":0,"id":"DOT-OST-2026-0199","title":"Increasing Flexibility on Disclosure of Airline Ancillary Fees"}],"document_number":"2026-13450","effective_on":"2026-07-02","end_page":40372,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2026/07/02/2026-13450.xml","html_url":"https://www.federalregister.gov/documents/2026/07/02/2026-13450/increasing-flexibility-on-disclosure-of-airline-ancillary-fees","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2026-13450?publication_date=2026-07-02","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2026-07-02/2026-13450/mods.xml","not_received_for_publication":null,"page_length":5,"page_views":{"count":695,"last_updated":"2026-09-22 16:15:06 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2026-07-02/pdf/2026-13450.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2026-13450.pdf?1782909925","publication_date":"2026-07-02","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2026/07/02/2026-13450.txt","regulation_id_number_info":{"2105-AF34":{"issue":"202504","html_url":"https://www.federalregister.gov/regulations/2105-AF34/increasing-flexibility-on-disclosure-of-airline-ancillary-fees-","title":"Increasing Flexibility on Disclosure of Airline Ancillary Fees ","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=202504&RIN=2105-AF34&operation=OPERATION_EXPORT_XML","priority_category":"Economically Significant"}},"regulation_id_numbers":["2105-AF34"],"regulations_dot_gov_info":{"supporting_documents":[],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/2105-AF34/increasing-flexibility-on-disclosure-of-airline-ancillary-fees-","title":"Increasing Flexibility on Disclosure of Airline Ancillary Fees "},"comments_count":0,"agency_id":"DOT","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=DOT-OST-2026-0199","supporting_documents_count":0,"docket_id":"DOT-OST-2026-0199","document_id":"DOT-OST-2026-0199-0001","regulation_id_number":"2105-AF34","title":"Increasing Flexibility on Disclosure of Airline Ancillary Fees","checked_regulationsdotgov_at":"2026-07-03T15:55:03Z"},"regulations_dot_gov_url":null,"significant":true,"signing_date":null,"start_page":40368,"subtype":null,"title":"Increasing Flexibility on Disclosure of Airline Ancillary Fees","toc_doc":"Increasing Flexibility on Disclosure of Airline Ancillary Fees","toc_subject":null,"topics":["Administrative practice and procedure","Air rates and fares","Consumer protection","Law enforcement","Reporting and recordkeeping requirements","Small businesses"],"type":"Rule","volume":91}