A Surveyor of Ships or any other maritime officer may board any ship for the purpose of verifying—
(a) that there is in force in respect of a foreign Safety Convention ship, a valid Safety Convention Certificate;
(b) that the condition of the hull, equipment and machinery of any such Safety Convention ship corresponds substantially with the particulars shown in such a certificate;
(c) that the number, grades and qualifications of radio officers or operators on board correspond with those shown in the Safety Convention Certificate; except where the certificate states that the ship is wholly exempt from the provisions of the Safety Convention relating to radio-telegraphy and radio-telephony; or
(d) that any conditions subject to which a Safety Convention Certificate, being the equivalent of an exemption certificate, is issued, are complied with.