framer,
Covered in Aviation Transport Security Regulations r3.03
3.03 Requirement to display ASICs in secure areas
(1) Subject to subregulations (4), (4A) and (5), regulations 3.05 to 3.09
and subregulations 3.18(2) and 3.26(2):
(a) a person in the airside security zone of a security controlled
airport must properly display a valid red ASIC; and
(b) a person in a secure area (other than the airside security zone)
of such an airport must properly display either a valid red
ASIC or a valid grey ASIC.
Penalty: 5 penalty units.
Note 1: The requirement in subregulation (1) applies to a person who is
accessing parts of the sterile area not generally accessible to
passengers or the public.
Note 2: For properly displaying, see regulation 1.04; for valid, see
regulation 1.05; for secure area, see regulation 1.03.
Note 3: A person who properly displays a valid VIC or TAC, and is
supervised by a person who properly displays a valid ASIC, need not
display a valid ASIC—see regulation 3.09.
(2) To avoid doubt, the obligations in subregulation (1) apply to crew.
(3) A contravention of subregulation (1) is an offence of strict liability.
(4) Subregulation (1) does not apply in relation to a security controlled
airport from or to which no regular public transport operation
operates.
(4A) At a security controlled airport from or to which no screened air
service operates, paragraphs (1)(a) and (b) apply only during traffic
periods.
Sub reg 4A above is an interesting one that not many seem to know about.