In this Act:
"Australian port" means a place appointed, proclaimed or prescribed as a port under the Customs Act 1901 , or under a law of a State or the Northern Territory .
"authorised person" means a person appointed under section 5.
"Collector" means:
(a) a Collector within the meaning of the Customs Act 1901 ; or
(b) an authorised person.
"exempt ship" means a ship declared by the regulations to be an exempt ship.
"home port" , in relation to a ship, means the port notified by the ship's owner or agent as the ship's home port in a written notice to a Collector at that port.
"levy" means the levy payable in accordance with this Act and imposed by the Levy Act.
"Levy Act" means the Marine Navigation Levy Act 1989 .
"officer of Customs" has the same meaning as in the Customs Act 1901 .
"quarter" means a period of 3 months commencing on 1 January, 1 April, 1 July or 1 October in any year.
"sea-going ship" includes a ship which, in the course of a voyage to or from an Australian port, passes an AMSA aid to navigation (as defined in the Navigation Act 2012 ) .
"ship" includes every description of vessel used in navigation not ordinarily propelled by oars only.