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DOT Home | Driver and Vehicle Services | Safety and standards | Modify or construct a vehicle

Modify or construct a vehicle

Find out about the rules, regulations and standards for constructing or modifying a vehicle in Western Australia, including modifications to heavy vehicles and vehicles for people with special needs.

Construct a vehicle

You can construct your own vehicle for use on Western Australian roads, provided you follow the relevant procedures and your vehicle meets the required standards. Here, you’ll find information on kit cars, street rods, special purpose vehicles and more. Go to Construct a vehicle.

Modify a vehicle

Find out what modifications you can undertake to a light vehicle in Western Australia without approval from the Department, and what to do when approval is required. Go to Modify a vehicle.

Heavy vehicle modifications

Find out how to modify a heavy vehicle in Western Australia. Using an Authorised Modifier can reduce paperwork and simplify the modification approval process so that your heavy vehicle can be modified and certified more efficiently. Go to Heavy vehicle modifications.

Special needs modifications (for people with disabilities)

There are many ways to make transportation easier for people with disabilities. Standard production vehicles can be specially modified to enable people with disabilities to drive the vehicle safely. Find out how to modify a vehicle in Western Australia. Go to Special needs modifications.