Subject to the provisions of this section, a safety convention certificate or a local safety certificate shall expire at the end of such period, not exceeding two years, in the case of a cargo ship safety equipment certificate or five
years, in the case of a cargo ship safety construction certificate, or one year, in the case of any other certificate, from the date of its issue, as may be specified therein, or upon the giving of notice by the Authority to the owner or master of the vessel that it has been cancelled.
