Australian Capital Territory Numbered Regulations Australian Capital Territory Numbered Regulations(1) The driver of a vehicle must give a stop signal by means of the vehicle's brake lights.
(2) However, if the vehicle's brake lights are not in working order or are not clearly visible, or the vehicle is not fitted with brake lights, the driver must give the stop signal by giving a hand signal in accordance with section 55, or using a mechanical signalling device fitted to the vehicle.