The Australian Bicycle Council (
http://www.austroads.com.au/abc/) has a project to lift the current limit of 200 watts to 300 watts maximum power output. This is shortsighted given that Canada is now at 500watts and the US is at 1000 watts.
The 200 watt limit was established in the 1970's as an Australian Design rule. It was based on the maximum power a fit male could generate, thus a bike with auxilary power could not exceed this.
Give the advances in bicycles (Pro bike riders can generate up to 800+ watts in short bursts),electric motors, the sophisticated motor control mechanisms (the harder you pedal the less assistance) and battery developments, it is time to revisit this 30+ year old restriction and ensure that it is reviewed in accordance with today's environmental, transport and recreational needs.
The following is a synopsis of an Interview on Radio National with Associate Professor Geoffrey Rose, Head, Institute of Transport Studies, Monash University
If you're serious about reducing your carbon emissions and your fuel bill, look no further than the e-bike. It combines pedal-power with a small, efficient electric motor and a battery that can be recharged at the end of the day. They're a must for people who would be unable to undertake long trips on a run-of-the-mill bicycle. The problem is that our legislators can't work how electric bikes should be classified. And so if you use one on the road you risk getting slapped with a traffic fine for riding an unregistered motor vehicle.
The interview is available here
http://www.abc.net.au/rn/nationalinterest/stories/2008/2307809.htm