there are lots of changes to federal stds going on all the time
the problem is that the state authorities dont always know there has been a change unless someone informs them
also the guys at licensing dont know all the adr's and vsb's that are being developed, if you are aware of some change but you still get knocked back, its probebly because they are unaware and you need to inform the top bloke there (John Dombrose) of any changes to the regulations.
also comes down to the individual checking the vehicle, and he can knock it back for any reason he wants