You will need this approval to modify a heavy vehicle in ways that may affect the safety of the vehicle.
The two categories of heavy vehicle modifications that need approval are:
- modifications that are outlined in the attached code of practice
- modifications that are outside the scope of the code of practice that may cause the vehicle to be non-compliant with a heavy vehicle standard
A heavy vehicle is a vehicle with a gross vehicle mass (GVM) or an aggregate trailer mass (ATM) of more than 4.5 tonnes.