Workboat Code 3: What Qualification Do You Actually Need for Your Area Category?

Why This Matters

Appendix 5 of Workboat Code Edition 3 is where the Code answers a very practical question: what qualification actually lets you be Master of a specific workboat, in a specific Area Category? Vessels complying with the Code are exempt from the standard STCW Watchkeeping Regulations 2022 and the Safe Manning Regulations 1997 — but only if manning follows the tables in this Appendix instead. Get this wrong and the vessel isn't legally manned, regardless of how experienced the crew actually is.

The Deck Manning Table — Area Category Sets the Ceiling

Table A5.1 works on a sliding scale: the further offshore and more demanding the Area Category (6 being the most sheltered, 0 the most exposed/unlimited), the higher the qualification required to hold Master. A few real anchor points from the actual table:

• STCW Master (Workboat <500GT, unlimited area) and STCW Master (Code Vessels <200GT, unlimited area) — valid across every Area Category, 6 through 0.
• RYA/MCA Yachtmaster Ocean — also valid across every category, provided it carries a commercial endorsement (which itself requires a valid Medical Fitness Certificate, a Sea Survival or Personal Survival Techniques course, and the RYA Professional Practices and Responsibilities course).
• MCA Boatmasters' Licence — valid for Categories 6 through 3 only, limited to the area of the licence and its endorsements (MSN 1853(M)).
• RYA/MCA Yachtmaster Coastal — also 6 through 3.
• RYA/MCA Powerboat Level 2 Certificate — Category 6 only, and only on open boats, RIBs, inflatables or buoyant-collar boats under 3GT.
• Day Skipper Theory & Practical — daylight operation only, Categories 6 and 5.

On top of the Master's own qualification, several categories require a second, separately-qualified person aboard — the requirement scales from ‘someone the owner/operator considers experienced and competent’ at the lower categories, up to a named RYA/MCA Yachtmaster Coastal or higher at the top end.

Engineering Manning — Power Threshold Drives the Requirement

Table A5.2 is built around registered propulsion power rather than Area Category alone. A Marine Engine Operators Licence (MEOL) or equivalent covers a ‘Power Vessel W’ (a vessel doing towing, lifting, or carrying cargo over 1000kg) up to a certain threshold; above 1500kW you move to a Senior MEOL or STCW III/2-equivalent qualification, and above 3000kW/9000kW into STCW III/2 Small Vessel Chief Engineer territory. One rule applies regardless of category: at least one crew member must always be sufficiently familiar with the vessel's machinery and maintenance to ensure a safe passage.