5.—(1) This article applies to:
(a)any relevant British fishing boat wherever it may be; and
(b)any Scottish fishing boat which is within relevant British fishery limits.
(2) For the purposes of section 1(3) of the Act (which prohibits the carriage on a relevant British fishing boat or on a Scottish fishing boat within relevant British fishery limits of sea fish of any description which are of less than the minimum size prescribed in relation to sea fish of that description), a size of 87 millimetres is hereby prescribed as the minimum size in relation to lobsters.