11.—(1) No person shall act in a capacity which requires a certificate of competency or certificate of service under the Regulations unless he holds an appropriate certificate:
(2) Except in the case of vessels of less than 24 metres in length operating in the limited area, the skipper shall not permit any person to be in charge of a navigational watch unless that person holds a certificate of competency or certificate of service of the class required by these Regulations to be held by a deck officer required to be carried in that vessel at that time.
(3) No person shall appoint any other person to act in a capacity for which he is not duly qualified in accordance with these Regulations.
12. Any contravention
(a)by any person of regulation 11(1) or (3) of these Regulations, or
(b)by any skipper of regulation 11(2) of these Regulations,
shall be an offence punishable on summary conviction by a fine not exceeding £2,000 and on conviction on indictment by imprisonment for a term not exceeding two years and a fine.