{"data":{"id":"us/50-cfr-300.173","jurisdiction":"us","citation":"50 CFR 300.173","heading":"Vessel identification.","body":"Each U.S. vessel fishing under the Treaty must be marked for identification purposes, as follows:\n(a) A vessel used to fish on the high seas within the Convention Area as defined in § 300.211 must be marked in accordance with the requirements at §§ 300.14 and 300.217.\n(b) A vessel not used to fish on the high seas within the Convention Area as defined in § 300.211 must be marked in accordance with either:\n(1) Sections 300.14 and 300.217, or\n(2) The vessel's name and U.S. Coast Guard Documentation number (or if not documented, the state registration number) followed by the letter U must be prominently displayed where they are clearly visible both from the air and from a surface vessel. Numerals and the letter U must meet the size requirements of § 660.704 of this title. Markings must be legible and of a color that contrasts with the background.","path":["Title 50—Wildlife and Fisheries","CHAPTER III—INTERNATIONAL FISHING AND RELATED ACTIVITIES","PART 300—INTERNATIONAL FISHERIES REGULATIONS","Subpart L—Pacific Albacore Tuna Fisheries"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-50.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:39Z","sha256":"a524d6c736e61030030144a2e3ae2d6d3ab0295febfd2bab0025188a3ab8a173","source_id":"us-cfr","stale":true,"prev":"us/50-cfr-300.172","next":"us/50-cfr-300.174"},"notice":"GroundRules: Original legal text. Not legal advice."}