USCG-DECK-SEA-L2.1

Oceans, near-coastal, Great Lakes and inland: the route definitions

USCG-DECK-SEA-M2 · Waters, routes and recency · USCG-DECK-SEA-M2-A Route definitions, route substitution caps and the 3-in-3 and 1-in-5 clocks for deck officers. 3 lessons.

Route words in the CFR are defined terms. **Near-coastal** means 200 miles from the US; **oceans** excludes the inland waters of another country. Yacht crew who work abroad need to read both closely.

AI-drafted catalogue content pending SME review. Deck sea service credit for yacht, foreign-flag and recreational service is largely evaluator discretion, including 12-hour days, days alongside and GT-only tonnage; verify with the National Maritime Center before relying on any day count.