 If a boat is listed and at a later point sold, the museum asks the owner to provide contact details to the new owner of the pleasure craft in order to be able to maintain knowledge about the fate of these boats.The Maritime Museum also conducts "Traditional-ship classification" (T-classing) of ships of historic value.The classification is aimed at guaranteeing the seaworthiness of the ship while maintaining its historic value and allows older ships to obtain certificates needed in order to sail in international waters.