Australian Capital Territory Numbered Acts Australian Capital Territory Numbered Acts51. (1) In determining the mass carried by a wheel of a vehicle with an approved portable weighing device, the device shall be placed under the tyre of the wheel so that the whole of the mass borne by the wheel is borne by the device.
(2) In determining the axle load of an axle of a vehicle with approved portable weighing devices, an approved portable weighing device shall be placed under the tyres of each of 2 wheels of the axle so that the whole of the mass borne by the axle is borne by the 2 devices and the aggregate of the weights shown by 2 approved portable weighing devices when so used shall be taken to be the axle load of the axle.
(3) For the purposes of this Act—
(a) the axle group load of an axle group of a vehicle shall be taken to be the aggregate of the axle loads of the several axles of the axle group;
(b) the gross mass of a vehicle shall be taken to be the aggregate of the axle loads of the several axles of the vehicle; and
(c) the aggregate of the gross masses of a motor vehicle and a trailer or semi-trailer coupled to the motor vehicle shall be taken to be the aggregate of the axle loads of the several axles of the motor vehicle and the trailer or semi-trailer.