46 CFR 13.101: Purpose of tank vessel endorsements

Last reviewed: October 14, 2026

This section states the purpose of this part. It describes the tank vessel endorsements the Coast Guard issues on a Merchant Mariner Credential (MMC). It lists the endorsements and the STCW endorsements whose requirements this part prescribes.

What it says

  1. This part describes the tank vessel endorsements that the Coast Guard issues on a Merchant Mariner Credential (MMC).

    “This part describes the various tank vessel endorsements issued by the Coast Guard on a Merchant Mariner Credential (MMC).”

  2. This part prescribes the requirements for six endorsements, which include Tank Vessel-PIC, Tank Barge-PIC, Restricted Tank Vessel-PIC, Restricted Tank Barge-PIC, Tank Vessel-Assistant and Tank Vessel-Engineer.

    46 CFR 13.101(a)“This part prescribes the requirements for the following endorsements:”

  3. This part prescribes the requirements for five STCW endorsements, which include Advanced Oil Tanker Cargo Operation, Advanced Chemical Tanker Cargo Operation and Advanced Liquefied Gas Tanker Cargo Operation.

    46 CFR 13.101(b)“This part prescribes the requirements for the following STCW endorsements:”

  4. This part also prescribes requirements for the STCW endorsements Basic Oil and Chemical Tanker Cargo Operation and Basic Liquefied Gas Tanker Cargo Operation.

    46 CFR 13.101(b)(4)“Basic Oil and Chemical Tanker Cargo Operation.”

Common questions

What does 46 CFR 13.101 cover?

It describes the tank vessel endorsements the Coast Guard issues on a Merchant Mariner Credential (MMC).

“This part describes the various tank vessel endorsements issued by the Coast Guard on a Merchant Mariner Credential (MMC).”

Which tank vessel endorsements does this part cover?

This part prescribes requirements for endorsements such as Tank Vessel-PIC, Tank Barge-PIC, Tank Vessel-Assistant and Tank Vessel-Engineer. It also covers the restricted PIC endorsements.

“This part prescribes the requirements for the following endorsements:”

Does this part cover STCW tanker endorsements?

Yes. This part prescribes the requirements for the listed STCW endorsements, which include advanced and basic tanker cargo operation endorsements.

“This part prescribes the requirements for the following STCW endorsements:”

The text of 46 CFR 13.101

Electronic Code of Federal Regulations (eCFR), current as of April 16, 2026 · Read it on eCFR

Purpose

This part describes the various tank vessel endorsements issued by the Coast Guard on a Merchant Mariner Credential (MMC).

(a) This part prescribes the requirements for the following endorsements:

(1) Tank Vessel-PIC.

(2) Tank Barge-PIC .

(3) Restricted Tank Vessel-PIC.

(4) Restricted Tank Barge-PIC .

(5) Tank Vessel-Assistant.

(6) Tank Vessel-Engineer.

(b) This part prescribes the requirements for the following STCW endorsements:

(1) Advanced Oil Tanker Cargo Operation.

(2) Advanced Chemical Tanker Cargo Operation.

(3) Advanced Liquefied Gas Tanker Cargo Operation.

(4) Basic Oil and Chemical Tanker Cargo Operation.

(5) Basic Liquefied Gas Tanker Cargo Operation.

The plain-English explanation on this page was written with AI from the regulation text above and checked automatically before publishing: every quote appears in the text, every number comes from it, and a second model confirmed each statement adds nothing the text doesn't say. Regulation text current as of April 16, 2026. The regulation text governs. RegKnot is not affiliated with the U.S. Coast Guard.