ok, most of what has been said is pretty much rot.
basically the deal is, if you have a datto with a ca18 or whatever, you must get it modded at one place( a similar system to qld modding ) but you will have to get your blue slip)or roadworthy or whatever you want to call it.) from a different workshop. so your engineer cant blue slip his own work.(kinda like a double check.)
as for the car having to meet the adr's of the current day, thats a load of poo poo.
this will only apply to an icv.