In this Division:
"clearance authority" means:
(a) a clearance officer; or
(b) an authorised system.
"clearance officer" means an officer, or other person, authorised by the Minister to perform duties for the purposes of this Division.
"eligible passport" means a passport of a kind specified in a determination under section 175A.
"on-port" , in relation to a person, means a port in Australia to which the person will travel after entering Australia at another port.
"overseas vessel" means:
(a) a vessel on which persons travel from outside Australia to a port and then to an on - port or ports; or
(b) a vessel on which persons travel from a port to another port or ports and then to a place outside Australia.