{"data":{"id":"us/41-cfr-301-10.180","jurisdiction":"us","citation":"41 CFR 301-10.180","heading":"-10.180 U.S. flag ship requirement.","body":"When authorized to travel by ship, employees must use a U.S. flag ship when available, unless the mission's necessity requires using a foreign ship. (See 46 U.S.C. 55302.)","path":["Title 41—Public Contracts and Property Management","Subtitle F—Federal Travel Regulation System","CHAPTER 301—TEMPORARY DUTY (TDY) TRAVEL ALLOWANCES","SUBCHAPTER B—ALLOWABLE TRAVEL EXPENSES","PART 301-10—TRANSPORTATION EXPENSES","Subpart B—Common Carrier Transportation Airline"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-41.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:05Z","sha256":"28a1445398d9b9d5de8930ae657bddd84aa03c41b0315b4204c1004a318c8a86","source_id":"us-cfr","stale":true,"prev":"us/41-cfr-301-10.162-301-10.179","next":"us/41-cfr-301-10.181"},"notice":"GroundRules: Original legal text. Not legal advice."}