Key to Endorsements on Deck Officer Credentials

Occasionally mariners and employers have difficulty deciphering the Merchant Mariner’s Credential.  Many of the endorsements are indicated by letter and Roman numeral, without supportive definition.

The US Merchant Marine Credential has two parts. One component describes the authority of the holder based on US licensing regulations. This is the “National” credential. The second part, omitted on credentials for mariners who do not need it, is the STCW authority. Here is a key to translating the STCW endorsement with links to the appropriate Checklists.

Symbol Certificate
II/1 Officer in Charge of a Navigational Watch 500 GT and more (Operational)
II/2 Master 3000 GT and more (Management)
II/2 Chief Mate 3000 GT and more (Management)
II/2 Master ≥ 500   and < 3000 GT (Management)
II/2 Chief Mate ≥ 500 and < 3000 GT (Management)
II/3 Master < 500 GT Oceans (Management)
II/3 Master < 500 GT Near Coastal (Management)
II/3 OICNW < 500 GT Oceans (Operational)
II/3 OICNW < 500 GT Near Coastal (Operational)
VI/1 Basic Training (formerly Basic Safety Training)
VI/2 Proficiency: Survival Craft & Rescue Boats (except Fast Rescue Boats).
Proficiency: other than fast rescue boats.
Proficiency: Survival Craft (Limited)
Proficiency: Fast Rescue Boats
VI/3 Advanced Firefighting
VI/4 Medical First Aid Provider & Medical Person-in-Charge
VI/5 Vessel Security Officer
VI/6 Vessel Personnel with Designated Security Duties