With your blue certificate, you can sail on deck as a commercial fisherman. You can also sail as a captain of fishing vessels up to 9 meters in length.
If you are to be a mate in fishing vessels over 9 meters in length, at least Certificate of Competency as second hand in fishing vessels is required.
With a certificate as second hand in fishing vessels, you can basically be a mate in fishing vessels up to 24 meters in length, in local trade as well as master of fishing vessels up to 15 meters in length.
If you are going to be a master in fishing vessels, seagoing service as second hand is qualifying, you must therefore remember to get a Certificate of Competency issued as second hand in fishing vessels, and register your seagoing service.
In addition, your blue certificate, supplemented by the STCW course in basic maritime safety and fire-fighting in ships, as well as a valid health certificate, entitles you to muster as an ordinary ships assistant on merchant ships.
We recommend in this case that you apply for a qualification certificate as an ordinary ship's assistant.