Article 30 Special directions to vessels
The harbourmaster may give a special direction in respect of any vessel anywhere within the harbour for any of the following purposes—
requiring persons to comply with a requirement made in or under a general direction;
regulating or requiring the movement, anchorage, berthing, mooring or unmooring of the vessel;
regulating the loading, discharging, storing and safeguarding of its cargo, fuel, water or stores and the dispatch of its business at the harbour premises;
specifying the precautions to be taken in respect of apparatus, machinery and equipment;
prohibiting or restricting the use of fires or lights.
A special direction may be given in any manner considered by the harbourmaster to be appropriate.
The harbourmaster may revoke or amend a special direction.