On registering a ship the Registrar shall retain in his possession a copy of any builder’s certificate or bill of sale or other evidence of title produced on first registration, any certificate of measurement or survey, and all declarations of eligibility.

On a fishing vessel changing from simple registration to full registration the Registrar shall retain in his possession a copy of the evidence adduced for that change F1....

On registering a fishing vessel which has had its engine power permanently de-rated the Registrar shall retain in his possession the modification explanation which has been submitted to him in accordance with regulation 29A(2).