{"data":{"id":"us/14-cfr-121.531","jurisdiction":"us","citation":"14 CFR 121.531","heading":"Applicability.","body":"This subpart prescribes requirements for flight operations applicable to all certificate holders, except where otherwise specified.","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 T—Flight 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":"2654fdbc024c4f1a2e08799f6a9862199235c73f24acb9838678fa02be6338f0","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-121.527","next":"us/14-cfr-121.533"},"notice":"GroundRules: Original legal text. Not legal advice."}