Here To go to Queen's Printer Registered Gross Vehicle Weights Weights allowed on public highways are separate from the registered gross weight of a vehicle.
Vehicle registration relates specifically to The Highway Traffic Act .
A heavy vehicle is usually registered to a specific weight determined by its business and the maximum weight it will generally carry. A registration fee is collected to reflect the relative damage to the highway system for operating at that registered weight. Different classes of highways have different gross weight limits to reflect their design standard and the amount of pavement deterioration which can be accepted. Therefore, no vehicle may exceed the weights identified for specific highways regardless of the registered weight of the vehicle . Axle group weights vary according to axle spread.