Marine Safety Act 1998 No 121
88 General powers of harbour master in relation to
(1) The harbour master of any port may direct and control the
(a) the time and manner in which any vessel may enter or leave the
(b) the navigation and other movements of any vessel within the port
or any part of the port,
(c) the position where and the manner in which any vessel may anchor
or be secured within the port,
(d) the time and manner of the taking in or discharging by any vessel
within the port of cargo, stores, fuel, fresh water or water
(e) the securing or removal of any vessel within the port in, from or
to any position as the harbour master thinks fit.
(2) The harbour master of any port may, as a condition of allowing a
vessel to be anchored or secured within a pilotage port, direct that a marine
pilot remain on board the vessel while it is so berthed or anchored (whether
or not pilotage is compulsory).
(3) A harbour master must not give any direction under this section
that would result in a contravention of any law relating to the area or vessel
concerned or that would impede the proper administration of the customs or
quarantine services within the port.