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.

Passenger transport service vehicles

Modifications to vehicles intended to be used to provide passenger transport services (such as taxis and charter vehicles) may require specific approvals and inspections. Visit Passenger transport vehicle equipment and modifications for more information.

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 Change use of heavy vehicle

All heavy vehicles have a nominated heavy vehicle use category (NHVC). This page provides the guidelines on how to change the use of a heavy vehicle.

 Individually Constructed Vehicles (ICV)

Find out about Individually Constructed Vehicles (ICV) and street rods.

 LPG and other fuels

As petrol prices rise in Western Australia, it is expected that the use of alternative fuels will increase substantially in the coming years and decades. Here, you will find information on alternative fuel options.

 Modify a light vehicle: Minor (no inspection)

Many minor vehicle modifications can be carried out without specific approval, as long as they comply with the applicable legislation.

 Modify a light vehicle: Simple (inspection)

The following modifications do not need written pre-approval from the DoT and can be assessed by an Authorised Inspection Station (AIS) vehicle examiner at time of the inspection.

 Modify a light vehicle: Complex (engineering)

Applicants are required to complete an online application, unless the modification is one that has been gazetted as a modification not requiring formal approval or a modification that can be assessed by an Approved Inspection Station (AIS).

 Modify a heavy vehicle

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.

 Modify a vehicle for special needs

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.

 Vehicle identification numbers (VIN)

Owner/Builders can request a low volume Vehicle Identification Number (VIN) for a new trailer or crane here. A separate form is required to obtain a surrogate VIN for a motor vehicle in Western Australia.

 Vehicle accessories and fittings

This page contains information about what to do if you are designing and developing innovative accessories and equipment for vehicles, as well as details about vehicle accessories, such as warning lamps, air bags, seat belts and seating, and immobilisers.
Page last updated: Tue Aug 10 2021 10:13:27 AM