Socket, CASA has deemed any airside activity at a certified or registered airport to be an SSAA.
However it is open to the Courts and/or the AAT not to agree with CASA.
Let's hope it is someone like Dick Smith with very deep pockets who takes a Sudafed and gets accused of Amphetamine use while airside, not intending to fly but merely checking the tiedowns while a thousand miles from his home base.
The fireworks should then be most interesting. This little regulation has the capacity to cause untold suffering, uncertainty, misery and financial loss for zero gain. It's bad regulation and it it's application should be much narrower.