USCG-OICEW-L4.2
The ETO sea service
USCG-OICEW-M4 · The Electro-Technical Officer — STCW III/6 · USCG-OICEW-M4-A The endorsement that stands alone
The ETO is a free-standing endorsement, but it is not a cheap one. The sea service at **46 CFR 11.335(a)(1)** is substantial, and the seagoing component is heavier than the OICEW's structure suggests at first glance.
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.