{"data":{"id":"us/46-cfr-13.120","jurisdiction":"us","citation":"46 CFR 13.120","heading":"Renewal of tank vessel endorsements.","body":"An applicant seeking renewal of a tank vessel endorsement or an STCW endorsement valid for service on tank vessels must meet the requirements of § 10.227 of this subchapter, except § 10.227(e)(1), for renewing an MMC, and meet the following additional requirements:\n(a) For endorsements as Tank Vessel-PIC, Advanced Oil and Chemical Tanker Cargo Operation; and Advanced Liquefied Gas Tanker Cargo Operations, provide evidence of—\n(1) At least 90 days of service during the preceding 5 years onboard a tank vessel for which the endorsement is valid, performing duties appropriate to the tank vessel endorsement held; and participation in at least two transfers of liquid cargo in bulk of the type for which the endorsement is valid within the preceding 5 years; or\n(2) Completion of an approved course for Tankship: Dangerous Liquids or Tankship: Liquefied Gases, appropriate for the endorsement to be renewed, within the previous 5 years.\n(b) For endorsements as Tank Vessel-Assistant, Basic Oil and Chemical Tanker Cargo Operation; and Basic Liquefied Gas Tanker Cargo Operations, provide evidence of—\n(1) At least 90 days of service during the preceding 5 years onboard a tank vessel for which the endorsement is valid, performing duties appropriate to the tank vessel endorsement held; or\n(2) Completion of an approved course for Tankship: Dangerous Liquids or Tankship: Liquefied Gases, appropriate for the endorsement to be renewed, within the previous 5 years.\n(c) For endorsements as Tank Barge-PIC, provide evidence of—\n(1) Participation in at least two transfers of liquid cargo in bulk of the type for which the endorsement is valid, within the preceding 5 years; or\n(2) Completion of a course approved for this purpose, appropriate for the endorsement to be renewed, within the previous 5 years.\n(d) For endorsements as Tank Vessel-Engineer, provide evidence of—\n(1) At least 90 days of service during the preceding 5 years onboard a tank vessel for which the endorsement is valid, performing duties appropriate to the tank vessel endorsement held; or\n(2) Completion of a course approved for this purpose, appropriate for the endorsement to be renewed, within the previous 5 years.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER B—MERCHANT MARINE OFFICERS AND SEAMEN","PART 13—CERTIFICATION OF TANK VESSEL PERSONNEL","Subpart A—General"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-46.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:22Z","sha256":"e0234ae373663e9ec8cfe34ed72744bef92d98f2787c78ec3e55afec7e6efa90","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-13.119","next":"us/46-cfr-13.121"},"notice":"GroundRules: Original legal text. Not legal advice."}