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Standard and non-standard vehicle information

Modified and non-standard vehicles

View information on vehicle modifications including trailers, caravans and campervans, and modification requirements.  


Vehicle assessment signatory scheme approval certificate

Learn about vehicle assessment signatory scheme and how to obtain an approval ce...

Vehicle modifications for drivers with a disability

Modified vehicles can help some people with a disability drive safely.

Adding or removing seats

Any change to the seating capacity of a vehicle must be carried out in accordanc...

Convert a vehicle into a campervan or motorhome

Requirements for converting your vehicle to a campervan or motorhome.

Build or modify a light trailer

View standards you need to follow when you modify a light trailer.

Modify a light trailer or caravan

Modifications to a light trailer or caravan must not affect its compliance to th...

Modify a truck or heavy trailer

Requirements for modifying a heavy truck or trailer over 4.5 tonnes Gross Vehicl...

Vehicles modified with alternative fuels

An alternative fuel system is an option sometimes considered by vehicle owners l...

Find an approved gas fuel systems service provider

Vehicles with a gas fuel system must be maintained certain service providers.