Applicants who already hold a BCO certificate, will need to revalidate every five years.


In order to revalidate, the holder must complete at least 180 days service as a BCO within five years, continue to hold a valid White List COC or maintain the approval of the flag state to act as a BCO, and maintain the following short course certificates:


In addition, a VHF operator’s certificate recognised by the flag state shall be required.


Once all the required fields have been completed in the BCO logbook, please contact for further instructions.


Application documents need to be emailed and posted to The Nautical Institute:


When you are ready to apply, please send you application and documents to:

The Nautical Institute

200b Lambeth Road

United Kingdom