USCG-OICEW-L1.5
Management, operational, support
USCG-OICEW-M1 · The STCW Layer · USCG-OICEW-M1-A How the STCW endorsement sits on top of the national one
STCW sorts every seafarer into one of three **levels of responsibility**. They are not job titles and they are not seniority in the mess. They are defined terms at 46 CFR 10.107, and they carry legal consequences for how your sea service is credited.
AI-drafted catalogue content pending SME review. STCW sea service, approved training and assessment requirements change; verify with the National Maritime Center before relying on this for a career decision.