Potrdilo se hrani na krovu ladje, kopijo pa se deponira pri oblasteh, ki hranijo zapis o registraciji ladje ali, če ladja ni registrirana v državi pogodbenici, pri oblasteh, ki izdajajo ali potrjujejo potrdilo.
5 The certificate shall be carried on board the ship and a copy shall be deposited with the authorities who keep the record of the ship's registry or, if the ship is not registered in a State Party, with the authorities issuing or certifying the certificate.