The owner of every vessel in respect of which a safety convention certificate or a local safety certificate has been issued shall cause her to be inspected by a surveyor at intervals, calculated from the date of the initial survey referred to in subsection (1), as follows:
(a) in the case of a passenger ship, at intervals not exceeding twelve months in accordance with the
construction regulations, the life-saving equipment regulations, the collision regulations, the radio regulations and any other applicable regulations which may have been made;
(b) in the case of a vessel (other than a passenger ship) plying on international voyages, at intervals not exceeding twenty-four months in accordance with the construction regulations, the life-saving equipment regulations, the collision regulations and any other applicable regulations which may have been made: Provided that inspections in accordance with such of the said regulations which are solely applicable to the issue of a cargo ship safety construction certificate shall be at intervals not exceeding five years;
(c) in the case of a vessel (other than a passenger ship) which does not ply on international voyages, at
intervals not exceeding twelve months in accordance with the construction regulations, the life-savingequipment regulations the collision regulations and any other applicable regulations which may have been made;
(d) in the case of a vessel (other than a passenger ship), which by the radio regulations is required to be fitted with a radio installation, at intervals not exceeding twelve months in accordance with the radio regulations applicable to her.
