(1) The Secretary may, by written notice given to the operator of a security controlled airport, establish one or more airside security zones within the airside area of the airport. Each zone must be of a type prescribed under section 31.
(2) The notice must include a map of the airport that shows the boundaries of the airside security zones.
(2A) A notice commences:
(a) when the Secretary gives the notice to the airport operator; or
(b) if a time is specified in the notice--at that time.
The time specified must not be earlier than the time the notice is given.
(2B) Each airport security zone is in force from the commencement of the notice that establishes it.
(3) The purpose of airside security zones is to subject those zones, within the airside area of a security controlled airport, to stricter or more specialised controls than those applying generally to the airside area.