Section 237: Duration of certificates

(1) A certificate of survey, a safety certificate, a radio certificate or a radio exemption certificate shall be in force for a period of one year, and a safety equipment certificate shall be in force for two years, from the date of the issue of the certificate or for such shorter period as may be specified in the certificate.
(2) No certificate under subsection (1) of this section shall remain in force after notice is given by the Minister to the owner, agent or master of the ship in respect of which it has been issued that the Minister has cancelled the certificate.
(3) An exemption certificate, other than a radio exemption certificate, shall be in force for the same period as the corresponding qualified certificate.