Department of State GrowthTransport

Weight Categories

Gross Vehicle Mass (GVM)

GVM means the maximum loaded mass of a vehicle as specified by the vehicle manufacturer on a plate affixed to the vehicle or assessed by the Division in the absence of a plate.

Gross Combination Mass (GCM)

GCM means the greatest possible sum of the maximum loaded mass of a motor vehicle, and any vehicles that may be lawfully towed by it at one time, as specified by the vehicle manufacturer on a plate affixed to the motor vehicle, or assessed by the Division in the absence of a plate.

Gross Trailer Mass (GTM)

GTM means the maximum loaded mass of a trailer as specified by the trailer manufacturer on a plate affixed to the trailer or assessed by the Division in the absence of a plate.

Light Vehicle

A light vehicle is a vehicle with a GVM of not more than 4.5 tonnes and includes trailers and motor cycles.

Heavy Vehicle

A heavy vehicle is a vehicle with a GVM exceeding 4.5tonnes and includes trailers.