46 CFR § 13.120 - Renewal of tank vessel endorsements.

---
identifier: "/us/cfr/t46/s13.120"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 13.120 - Renewal of tank vessel endorsements."
title_number: 46
title_name: "Shipping"
section_number: "13.120"
section_name: "Renewal of tank vessel endorsements."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "B"
subchapter_name: "MERCHANT MARINE OFFICERS AND SEAMEN"
part_number: "13"
part_name: "CERTIFICATION OF TANK VESSEL PERSONNEL"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "46 U.S.C. 3703, 7317, 8105, 8703, 9102; DHS Delegation No. 00170.1, Revision No. 01.4."
regulatory_source: "CGD 79-116, 60 FR 17142, Apr. 4, 1995, as amended by USCG-2021-0097, 89 FR 93106, Nov. 25, 2024, unless otherwise noted."
cfr_part: "13"
---


# 13.120 Renewal of tank vessel endorsements.

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:

(a) For endorsements as Tank Vessel-PIC, Advanced Oil and Chemical Tanker Cargo Operation; and Advanced Liquefied Gas Tanker Cargo Operations, provide evidence of—

(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

(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.

(b) For endorsements as Tank Vessel-Assistant, Basic Oil and Chemical Tanker Cargo Operation; and Basic Liquefied Gas Tanker Cargo Operations, provide evidence of—

(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

(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.

(c) For endorsements as Tank Barge-PIC, provide evidence of—

(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

(2) Completion of a course approved for this purpose, appropriate for the endorsement to be renewed, within the previous 5 years.

(d) For endorsements as Tank Vessel-Engineer, provide evidence of—

(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

(2) Completion of a course approved for this purpose, appropriate for the endorsement to be renewed, within the previous 5 years.

[USCG-2004-17914, 78 FR 77989, Dec. 24, 2013, as amended by USCG-2021-0834, 89 FR 102337, Dec. 17, 2024]