{"data":{"id":"us/14-cfr-121.91","jurisdiction":"us","citation":"14 CFR 121.91","heading":"Applicability.","body":"This subpart prescribes rules for obtaining approval of routes by certificate holders conducting domestic or flag operations.","path":["Title 14—Aeronautics and Space","CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER G—AIR CARRIERS AND OPERATORS FOR COMPENSATION OR HIRE: CERTIFICATION AND OPERATIONS","PART 121—OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS","Subpart E—Approval of Routes: Domestic and Flag Operations"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-14.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:20Z","sha256":"c0a0d29c45eda321354837089b661acd56d740397a7579c33bc158b87fe79f1c","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-121.15","next":"us/14-cfr-121.93"},"notice":"GroundRules: Original legal text. Not legal advice."}