5.—(1) The master of a United Kingdom ship, when—
(a)his ship is in United Kingdom waters or controlled waters, and
(b)when his ship is elsewhere,
who observes or otherwise becomes aware of any event involving discharge of oil at sea from another ship or from an offshore installation, shall report it without delay—
(i)in the circumstances at sub-paragraph (a) above, to HM Coastguard; and
(ii)in the circumstances at sub-paragraph (b) above, to the nearest coastal state.
(2) An individual having charge of an offshore installation or an oil handling facility which is pipeline who observes or otherwise becomes aware of any event involving discharge of oil at sea from another installation or a ship shall without delay report it to HM Coastguard.
(3) In this regulation “controlled waters” means water specified as areas within which the jurisdiction and rights of the United Kingdom are exercisable by the Merchant Shipping (Prevention of Pollution) (Limits) Regulations 1996(1).