USCG-DECK-RATINGS-L2.1

The six Able Seafarer categories and the service behind them

USCG-DECK-RATINGS-M2 · National Able Seafarer and Lifeboat Operator · USCG-DECK-RATINGS-M2-A The six Able Seafarer categories, their service after the 2025 statute change, the exam and practical, and Lifeboat Operator. 3 lessons.

Six national AB categories, three different answers to 'how much sea time?' — the **CFR**, the **statute** as amended on **18 December 2025**, and the **NMC checklist**. Know all three.

AI-drafted catalogue content pending SME review. Able Seafarer sea service figures changed by statute on 18 December 2025 and the CFR and NMC checklists had not been conformed at drafting, so confirm current day counts, exam modules and assessment rules; verify with the National Maritime Center before applying.