we have annual inspections here in New South Wales,some states dont,but do require RWC (roadworthy certificate) if selling,all depends whos doing the inspection ,some guys are a little more lenient than others, eg mufflers must be ADR (australian design rules) stamped etc, its a tricky situation as the RWC are liable for vehicles found to be unroadworthy and are legally have to pay to have them comply if found unroadworthy after testing, a friend of mine had his car randomly spot checked by the authorities 1 day after annual RWC to see if it complies and see if the local guy was adhering to the rules( arrived at his home unannounced)..its kinda like the vehicle inspectors police. as usual the system stinks and is full of holes, so many rules that are set up for cars that affect bikes in a rediculous way.