In accordance with the Malaysian Road Transport Act 1987, motor vehicles are divided into the following classes:

• Invalid carriages are motor vehicles which the unladen weight doesn’t exceed 250 kilograms, and which are specially designed and constructed for the use of a person with some physical defect or disability and used solely by such a person.
• Motor cycles are motor vehicles with less than 4 wheels which the unladen weight doesn’t exceed 450 kilograms.
• Heavy tractors are motor vehicles that are not constructed to carry any load (other than water, fuel, accumulators and other equipment and materials used for the purposes of propulsion, loose tools and loose equipment) which the unladen weight exceeds 5000 kilograms.
• Light tractors light are motor vehicles which the unladen weight doesn’t exceed 5000 kilograms and which otherwise fall within the definition of "tractors heavy".
• Heavy motor cars are motor vehicles which are constructed to carry a load or passengers and which the unladen weight exceeds 3000 kilograms.
• Motor cars are motor vehicles (not falling within the definition of "motor cycles"), which are constructed to carry a load or passengers and which the unladen weight doesn’t exceed 3000 thousand kilograms.
• Mobile heavy machinery are motor vehicles which are designed as self-contained machines, propelled by means of mechanism contained within themselves and which the unladen weight of exceeds 5000 kilograms and are capable of being used on roads.
• Mobile light machinery are motor vehicles which the unladen weight doesn’t exceed 5000 kilograms and which otherwise fall within the definition of "mobile machinery heavy":
• Pedestrian controlled vehicles are motor vehicles constructed for the purpose of carrying a load or passengers and controlled by a person who is not seated or mounted on such a vehicle.
• Trolley vehicles are vehicles deriving their power from overhead cables or rails and making connection with such source of power by means of a pulley or other device.
• Trailers are vehicles other than land implements drawn by a motor vehicle, whether or not part of the trailer is superimposed on the drawing vehicle.