PART IV WATCHKEEPING REQUIREMENTS

11 Officers to act only in a capacity for which certificated
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:
Provided that in the event of the death or incapacity of any officer required to be certificated under these Regulations, a deck officer or engineer officer, as appropriate, who is not certificated to act in that capacity may act in the certificated capacity until the vessel reaches the next intended port of call.
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 Offences and penalties
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.