5.—(1) In addition to the directions which he may give under section 52 of the Act of 1847 the harbour master may give a direction under this article in respect of a vessel anywhere within the harbour or the harbour approaches–
(a)requiring persons to comply with a requirement made in or under a general direction;
(b)regulating the loading, discharging, storing and safeguarding of its cargo, fuel, water or stores, and the dispatch of its business at the harbour premises.
(2) A special direction may be given in any manner considered by the harbour master to be appropriate.
(3) The harbour master may revoke or amend a special direction.