A person will be employed as a cadet on board any South African ship if he or she is a South African citizen or a citizen of a treaty country (other than the Republic) or a citizen of any other country whom the SAMSA has in its discretion and subject to any conditions which it may have imposed, permitted to be so employed, and has attained the age of sixteen years and the master of the ship undertakes to train him or cause him to be trained in navigation and seafarers hip or in engineering and in the duties of a ship’s officer.