Application
3.—(1)  Unless otherwise provided, these Regulations shall apply to a ship which plies —
(a)within the port limit; or
(b)not more than 30 miles from the port limit and not more than 20 miles from the nearest land (referred to in these Regulations as the 30-mile limit).
(2)  These Regulations shall not apply to Government vessels which are not used for commercial services.