How to apply for a deck yacht certificate of competency

Complete MSF 4343, for an oral examination leading to a CoC (STCW) for deck officers on commercially and privately operated yachts and sail training vessels.


Application for an oral examination leading to the issue of a certificate of competency (STCW) for masters, chief mates and deck officers on commercially and privately operated yachts and sail training vessels (MSF 4343)

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Additional Information

If this if your first UK CoC application, please post your application and supporting documents to UK Seafarer Services (Training & Certification), Maritime and Coastguard Agency, Spring Place, 105 Commercial Road, Southampton SO15 1EG. For all other applicants, please email your application and scanned documents to

Other information

It is important that the guidance notes and instructions on pages 8, 9 and 10 are read when completing the application.

Please provide an email address in block capitals for us to inform you that we have received your application.

The MCA is unable to provide a counter service.

Published 17 April 2014
Last updated 6 February 2021 + show all updates
  1. New version of the Form available

  2. COVID-19 update (unable to accept applications by post)

  3. Updated version of form

  4. Minor correction to the stated fees on the form in line with the MCA Fees as published in November 2018

  5. Updated to form Rev 06/19

  6. Application form updated with fee change.

  7. Application form updated

  8. Application form has been updated

  9. Title updates

  10. MSF 4343 Yacht Deck form updated

  11. Updated MSF 4343

  12. MSF 4343 updated

  13. New form version

  14. First published.