Regulation 6 Duration and validity of Work in Fishing Convention Certificates
Subject to paragraph (2), a Work in Fishing Convention Certificate must be issued—
on the date of the completion of the relevant survey; and
with a period of validity starting on the date of issue and not exceeding five years.
Where a renewal survey as required by regulation 4(2) has been completed within a period of three months before the expiry of a Work in Fishing Convention Certificate, the new certificate must be issued as being valid from the date of expiry of the existing certificate.
A Work in Fishing Convention Certificate ceases to be valid—
upon the transfer of the fishing vessel to the flag of another State;
if the person who is named on the certificate as the fishing vessel owner ceases to have responsibility for the operation of the vessel;
if substantial changes are made to the fishing vessel's accommodation or its food or catering facilities; or
if the fishing vessel's accommodation or the fishing vessel's food or catering facilities have sustained damage or otherwise become deficient and that damage or deficiency has not been rectified.