3.—(1) Subject to paragraph (2) of this regulation,
(a)these Regulations except regulation 11 apply to United Kingdom ships; and
(b)regulations 1, 2, 3, 11 and 12 apply to ships other than United Kingdom ships while they are in a United Kingdom port.
(2) These Regulations do not apply to:—
(a)fishing vessels;
(b)pleasure craft;
(c)offshore installations whilst or within 500 metres of their working stations; or
(d)ships in which there is for the time being no master or crew or watchman.