New regulations now in force in WA will allow a class of electric bicycle known as electric power-assisted cycles (EPAC) to operate under the legislation covering other electric bikes and power-assisted pedal cycles (PAPC).

EPAC bicycles may operate at up to 250 watts power output, while all other power-assisted pedal cycles are limited to 200 watts. As with other electric bicycles, the higher output EPACs may be ridden on shared paths. A power-assisted pedal cycle is a bicycle with an auxiliary motor that provides assistance to the rider.