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MCA Deck Officer Certificates (Officer of the watch (OOW), Chief Mate and Master)

MCA Officer of the Watch, commonly abbreviated to OOW, MCA Chief Mate and MCA Master Certificates are gained with a combination of pre-entry requirements, training courses, assessments and sea service.


Each Certificate of Competence will have a gross tonnage (GT) rating, and this specifies the size of yacht you are able to work on.  The training covers all aspects of the safe operation of superyachts, including:


  • Navigation and Radar
  • Collision Regulations
  • Operational Safety
  • Responses to emergencies
  • Pollution control
  • Business and Law
  • Stability
  • Medical Care


These are the top-level deck qualifications in the industry and completion is spread over a number of years.  They are designed to be achieved while working on board.  The modular design allows the training elements and exams to be taken while on leave.


Further Information

Many training providers publish information about MCA certification routes, manning scales, entry requirements and other information.  The official regulations are published on the MCA website


The following Superyacht UK members offer MCA training:



Please contact the provider directly for information about which courses they offer, dates, prices and availability.


A full list of MCA-approved training providers is available from the MCA by telephoning 023 8032 9231.