Northern Territory Consolidated Regulations7. Notice of departure
The master of a vessel about to depart from the Port -
(a) shall, not less than 6 hours before the time of the intended departure of the vessel, give notice to the Harbourmaster of the time of the intended departure; and
(b) shall not, without the permission of the Harbourmaster, cause, permit or suffer the vessel to depart before the time specified in a notice given under paragraph (a).