{"data":{"id":"us/33-cfr-173.31","jurisdiction":"us","citation":"33 CFR 173.31","heading":"Surrender of certificate of number.","body":"A person whose name appears as the owner of a vessel on a certificate of number shall surrender the certificate in a manner prescribed by the issuing authority within 15 days after it becomes invalid under paragraph (b), (c), (d), or (e) of § 173.77.","path":["Title 33—Navigation and Navigable Waters","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER S—BOATING SAFETY","PART 173—VESSEL NUMBERING AND CASUALTY AND ACCIDENT REPORTING","Subpart B—Numbering"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-33.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:35Z","sha256":"4bb2272f661f16e1160e96418a00ea9dd85694ce7d4155036e3eca4269658f6b","source_id":"us-cfr","stale":true,"prev":"us/33-cfr-173.29","next":"us/33-cfr-173.33"},"notice":"GroundRules: Original legal text. Not legal advice."}