USCG-MASTER1600-L3.4

Renewal and keeping it valid

USCG-MASTER1600-M3 · Application, training and examination · USCG-MASTER1600-M3-A Age and general requirements, firefighting and radar, the 500/1,600 GRT exam modules and renewal. 4 lessons.

Renewing the national ticket is easy for a working officer: **one year at sea in five**. The riders — Radar Observer, STCW, medical — each have their own clocks.

AI-drafted catalogue content pending SME review. The national ticket is measured in GRT while the STCW endorsement that normally accompanies it is measured in GT, and NMC checklist wording (notably recency) currently differs from 46 CFR 11.201; verify with the National Maritime Center and the current checklist before applying.