George,
G'day,
Well, our own Local Body (Recreational Aviation Australia) is responsible for lobbying for rule changes etc etc, and our Civil Avaiation Authority seem pretty happy to hand it over - as it would seem, to be self regulatory. What would happen (as I understand it) would be that once brought into play, all you need to do is change the aircraft REGO to RAA (which is numbers in stead of VH) put a sticker on the panel limiting the takeoff info to 700KG and your away. A similar thing happend with lighter aircraft (Piper Cup/Aeronca etc) you offically state in the log book and flight manual that the aicraft is limited to a particular wieght and your away - now, in reality, if you took of over weight, no one would know until there was an accident, then you face the music - similar I guess to our 150/150 drivers who may (or may not) take off in questionable circumstances.
The Aeronca I used to fly, had a sticker on panel stating "Maximum Take-off Weight 544KG" did anyone ever check to see if that was the case.....who knows..

Hey, just a thought, but I can see it coming - the push is already on by the powers that be, and, hoplfully will be in place within 12-18 months with any luck - time will tell
Cheers