As of mid last year Perth Airport has made it mandatory for the flouro vest. If you have a PH ASIC it's a 2 strikes and you lose your ASIC!
Subdivision 6.5.4 of the Aviation Transport Security Regulations 2005 specifies the conditions under which an ASIC may or must be withdrawn. Failing to comply with an airport operators safety rules is not one of them!
You can only have your ASIC withdrawn for failing to comply with the regs so I'd suggest your mate driving around in the red ute is trying a bit of bluff. If they try and take it off you or threaten to for not having your vest on, just ask specifically which section of the regs allows them to do so. That should take a bit of wind out of their sails.
Compliance with the regs is a 2 way street
