CoC (Certificate of Competency)

Abbreviation: CoC

The STCW certificate proving a seafarer meets the training + experience standard for a specific rank + capacity.

Quick facts

Standard: STCW 1978 as amended, 2010 Manila

In practice

Every officer serves under a CoC issued by their flag state. Recognition endorsements (Reg I/10) allow serving on other flags.

Regulatory detail & full definition

A Certificate of Competency (CoC) is issued by a flag-state maritime administration proving that a seafarer meets STCW standards for a specific rank + capacity + trade area. Deck CoCs range from OOW → Chief Mate → Master (unlimited or limited by tonnage / trade). Engine CoCs range from Third → Second → Chief Engineer, similarly limited. Endorsements for tanker, LNG, HSC, polar operations add to the base CoC. See /glossary/stcw-coc for STCW-specific detail.

Authoritative source: IMO — STCW Convention ↗

Source: STCW

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CoC (Certificate of Competency)

Quick facts

In practice

Related

CoC (Certificate of Competency)

Quick facts

In practice

Related