Approval of Heavy Vehicle Modifications - New South Wales


You will require this approval if you intend to modify a heavy vehicle. This approval is needed for modifications that can affect the safety of the heavy vehicle.

Minor modifications that do not cause the vehicle to become non-compliant with vehicle standards do not require this approval. Examples include additional lighting, aerials, air conditioning and alarm systems.

There are two categories of heavy vehicle modifications that require approval:

  • Modifications that are outlined in the attached code of practice. These include complex modifications that can affect the safety of a vehicle if not performed property. The modifications are based on accepted vehicle engineering practices and the requirements. If your modification falls under the code of practice, then you will require approval from an Approved Vehicle Examiner (AVE) to modify your vehicle.
  • 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. These modifications are usually significant or extensive modifications that have the potential to seriously affect the safety of the vehicle and its operation on the road. They may affect the vehicle design, strength, structural integrity and handling characteristics. These modifications require both the approval of an AVE and the National Heavy Vehicle Regulator (NHVR).

A heavy vehicle is a vehicle with a gross vehicle mass (GVM) or an aggregate trailer mass (ATM) of more than 4.5 tonnes.

Please consult the Contact Officer for more information.

Service type


A licence defines the need to obtain recognition / certification and registration to undertake a certain business activity.

Eligibility requirements

To be eligible for this approval, you must:

  • Prove that the use of a modified vehicle will not pose significant safety risks; and
  • Comply with noise and emission standards, unless otherwise exempted.

Please consult the Contact Officer for more information regarding eligibility requirements.


Fees Details for this service in table format.

Task Type Business Structure Description
Apply Application All

Please consult the Contact Officer for information on fees to be submitted.


Task Business Structure Resources
Apply All Modification Application - Please consult the Contact Officer for information on forms to be submitted.

Act(s) name

Heavy Vehicle National Law (NSW) New South Wales

Administering agency

National Heavy Vehicle Regulator

Contact details

Contact Email, Phone and Address Details for this service in simple two column table format, header then data.

Please use these contact details for help or more information:

Enquiries, Vehicle Standards Unit

National Heavy Vehicle Regulator

Mailing address: PO Box 492
Fortitude Valley
Queensland 4006
Phone: 1300 696 487
Fax: 1300 736 798