(1)In addition to the directions which he may give under section 52 of the Harbours, Docks, and Piers Clauses Act 1847 (c. 27) the harbourmaster may give a direction (“a special direction”) under this section—
(a)requiring any vessel anywhere within the haven or the approaches to it to comply with a requirement made in or under a general direction;
(b)prohibiting the mooring of vessels in any particular part or parts of the haven;
(c)regulating or requiring the movement, mooring or unmooring of a vessel, regulating the manner in which a vessel takes in or discharges cargo, fuel, water or ship’s stores otherwise than at a dock or pier.
(2)A special direction may be given in any manner considered by the harbourmaster to be appropriate.
(3)The harbourmaster may revoke or amend a special direction.