USCG-OICEW-L4.4
What an ETO actually does
USCG-OICEW-M4 · The Electro-Technical Officer — STCW III/6 · USCG-OICEW-M4-A The endorsement that stands alone
The endorsement describes the person, and the six professional items at 11.335(a)(4) describe him well: computer networking and security; radio electronics; integrated navigation equipment; ship propulsion and auxiliary machinery; instrumentation and control systems; high-voltage power systems.
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.