USCG-MASTER1600-L1.3

GRT, GT and the 1,600/3,000 mapping

USCG-MASTER1600-M1 · Structure, authority and the yacht · USCG-MASTER1600-M1-A The eight endorsements, manning under Part 15, GRT versus GT and the 40–70 m yacht. 4 lessons.

US national tickets speak **GRT**; STCW speaks **GT**. The CFR pairs **1,600 GRT with 3,000 GT** repeatedly, but there is no conversion factor, and assuming one is how officers end up on the wrong side of a line.

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.