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Guidance

MSN 1858 (M+F) - Amendment 2 - UK Requirements for Deck Officers on Large Yachts (24m and over)

This MSN outlines the certification structure, training and assessment requirements for yacht deck officers.

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This Merchant Shipping Notice (MSN) sets out and explains the regulatory requirements regarding the implementation of training elements applicable under Chapter II, Article IX, of the STCW Convention and Code. It outlines the certification structure and examination and training requirements for yacht deck officers. The route for yacht certification is structured to provide a progressive career path for those in the industry to achieve yacht restricted Officer of the Watch (OOW), Chief Mate and Master qualifications.

Notice to all Owners, Masters, Deck Officers and Crews of Commercially and Privately Operated Yachts and Sail Training Vessels, and those concerned with Maritime Training.

This notice replaces MSN 1858 Amendment 1 on 18 May 2026.

Updates to this page

Published 18 May 2026

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