USCG-DECK-SEA-L1.3

Underway, alongside and in the yard

USCG-DECK-SEA-M1 · What counts as a day · USCG-DECK-SEA-M1-A Reading 10.232, the 8-hour day, time-and-a-half, the 4-hour day and underway versus alongside. 3 lessons.

Yachts spend much of their year alongside. How much of that is **sea service** depends on the credential, the vessel and how your letter is written.

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.