What are they going to inspect for? A non marked hitch? Will you be fined for having an incorrect AS number on the hitch?.
A bit of a quick search of "Ozhitch
http://ozhitch.com/testing/ & "McHitch"
http://mchitch.com.au/adr-testing websites state testing seems to be upto manufacturerby a sort of self assessment criteria.
Compliance with this ADR can be achieved in one of two ways. The first, and most widely accepted way of meeting this requirement is for the manufacturer to declare their opinion that, based on the specifications of the coupling, they would either meet or exceed the testing regime of 62/02, without having actually undergone the testing..
The second, official and most expensive way is for the the coupling to be tested by an independent third party in an approved testing laboratory via high load static and cyclic testing.
So how are TMR going to argue in a roadside test that the hitch isnt compliant?
OK so maybe the imported ones are wrong by referencing the AS, but really the way i read it, if their happy to say the hitch will meet the ADR requirements, then what right has the TMR got to say otherwise unless of course they take a hitch & get it tested. Which we know wont happen in Qld cos we're broke,
I have been talking to the guy i got my camper from (just to ask the question) & he intimated to me that like other manufacturers above its upto manufacturer to decide.
Its interesting that when i went to pick up my CT, they sent me down to Transport dept with all paperwork & i came back with the plates. No inspection there, maybe thats why CT traders always tell you that rego is not included & must be arranged separately (limit their liability)
I spose if ones not happy with the current hitch then just have to replace it with one they will be happy with.