reg 21 Duties of other persons
(1) Where a person on whom a duty is imposed by any of the preceding provisions of these Regulations does not have control of the matter to which that provision relates because responsibility for the operation of the ship falls upon another person, that duty also extends to any other person who has control of that matter. (2) It is the duty of every worker performing activities to which these Regulations apply to— (a) make full and proper use of all clothing and equipment provided by the employer to that worker in pursuance of these Regulations; and (b) give effect to all instructions and training provided to that worker under regulation 12 or 13.