Vehicle standards information sheets (VSI)

Each vehicle needs to comply with specific standards to drive on NSW roads. Find out what vehicle standard requirements apply to your vehicle.

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Light vehicle standards

Transport for NSW is responsible for administering the vehicle standards that apply to all light vehicles.

Light vehicles are defined as:

  • motor vehicles with a Gross Vehicle Mass (GVM) of 4.5 tonnes or less
  • trailers with an Aggregate Trailer Mass (ATM) of 4.5 tonnes or less.

The requirements for light vehicles are outlined in the Road Transport (Vehicle Registration) Regulation 2017.

The regulation includes:

  • Australian Design Rules (ADR) which are the national construction and performance standards for new and used road vehicles
  • adopted standards for vehicle components/systems (eg glazing, alternative fuels).

If you have questions about light vehicle standards and requirements, contact Technical Enquiries. You can email or phone 1300 137 302.

Heavy vehicle standards

A heavy vehicle is a motor vehicle with a GVM exceeding 4.5 tonnes or a trailer with an ATM exceeding 4.5 tonnes.

Contact the National Heavy Vehicle Regulator for heavy vehicle standards and vehicle standards guides (VSG). You can email them at or call them on 1300 696 487.

Vehicle standards information (VSI) sheets

The vehicle standards information (VSI) sheets outline vehicle standards and modification requirements for light vehicles.

If modifications to a vehicle are significant, the vehicle must be issued a compliance certificate by a licensed certifier before being used on a road or road related area. Find out more about modified vehicles and what modifications require certification.

Not all of these forms meet the WCAG2.0 accessibility requirements. If you're having trouble accessing them please contact us.

Title Topic
VSI 03 Windows and tintings (PDF 883.76KB) A guide to the amount of deterioration allowed on windscreens and the use of tinted films on windows.
VSI 04 Registering imported vehicles (PDF 264.29KB) A guide to the vehicle standards requirements for registering imported vehicles in NSW.
VSI 05 Light vehicle dimension limits (PDF 985.63KB) A guide to the dimension limits applicable to road vehicles not exceeding 4.5 tonnes gross vehicle mass (GVM) or aggregate trailer mass (ATM).
VSI 06 Light vehicle modifications (PDF 365.92KB) A guide to modifications requiring certification under the Vehicle Safety Compliance Certification Scheme.
VSI 08 Flashing lights and sirens (PDF 166.01KB) A guide to inform vehicle owners and operators of the types of flashing lights and/or sirens that may be fitted to certain types of vehicles and when they can be used.
VSI 09 Guidelines for alternative wheels and tyres (PDF 880.44KB) A guide to fitting alternative wheels and/or tyres to those supplied as original equipment by the vehicle’s manufacturer.
VSI 10 Carrying bicycles on motor vehicles (PDF 679.49KB) Advice about the safety requirements that apply when carrying a bicycle/s externally mounted on a motor vehicle.
VSI 14 LPG fuelled vehicles (PDF 3.55MB) A guide to who can install LPG systems and the registration requirements for vehicles fitted with LPG.
VSI 16 Natural gas fuel systems for motor vehicles (PDF 1.6MB) A guide to Compressed natural gas (CNG), also called natural gas for vehicles (NGV) and who can install them.
VSI 18 Dimension and mass limits for vehicle combinations (PDF 433.19KB) A guide to dimension and mass limits for operating a vehicle combination.
VSI 21 Guidelines for modifying vehicles for people with disability (PDF 688.6KB)


Summary of requirements for registering and using a vehicle modified for a person with a disability - July 2020 (PDF 99.68KB)
Information about modifying vehicles for people with disability, either as a driver or a passenger.
VSI 22 Electric brakes fitted to large trailers This VSI is being updated. In the interim, refer to the  Info-sheet Authorised Inspection Scheme Business Rules (PDF 990.25KB)
VSI 28 Guidelines for modifications to motorcycles (PDF 250.09KB) Information about the requirements you must meet if you alter your motorcycle from its original specifications.
VSI 29 Headlight covers (PDF 129.75KB) Information on the minimum performance requirements for headlights and the need to maintain this performance when fitting headlight covers.
VSI 31 Guide on fitting ladder racks to light vehicles (PDF 265.58KB) A guide to the safety and legal requirements that apply to fitting a ladder rack to the front of a light motor vehicle.
VSI 35 Mobile advertising units (PDF 130.42KB) Information on the requirements for vehicles being used as mobile advertising units.
VSI 37 Reporting vehicle defects (PDF 135.88KB) Information for owners and drivers of light vehicles that are fleet vehicles of the process for reporting vehicle defects.
VSI 40 Left-hand drive vehicles up to 4.5 tonnes GVM (PDF 133.55KB) Information on the requirements for registering motor vehicles not exceeding 4.5 tonnes gross vehicle mass in left-hand drive configuration.
VSI 41 Guidelines for A-frame towing (PDF 2.5MB) A guide to the requirements for flat-towing a motor vehicle when using a device commonly known as an A-frame.
VSI 42 Stretched limousines - exemption from aspects of ADR 58/100 (PDF 272.96KB) Information on stretched limousines exempt from specific clauses of ADR 58/00 Requirements for Omnibuses Designed for Hire and Reward subject to certain conditions..
VSI 43 Transporting rowing boats (PDF 5.21MB) Information on the dimension limits applying to vehicles and trailers used for transporting rowing shells, outrigger canoes, kayaks, dragon boats and other similar rowing boats on New South Wales roads.
VSI 44 Retro-fitting seatbelts to buses and coaches (PDF 211.11KB) Information about retro-fitting seatbelts to buses and coaches.
VSI 46 Exemption permit process for approval and registration of non-complying special purpose vehicles (PDF 281.96KB) Advice for owners and operators of non-complying special purpose vehicles (SPVs) on getting operational approval and registration.
VSI 48 Changing the GVM of goods vehicles with alternative identification plates (PDF 152.66KB) Advice on the procedures for changing the gross vehicle mass of goods vehicles that are supplied to the market with different load ratings.
VSI 49 Seatbelt buckle covers (PDF 595.75KB) Information about seat belt buckle covers and legal requirements with regard to fitting a seat belt buckle cover.
VSI 52 Certification of new trailers up to and including 4.5 tonnes ATM (PDF 330.74KB) Information for trailer manufacturers and/or distributors of the process for the certification and registration of new or revised light trailers.
VSI 53 What is an individually constructed vehicle (PDF 287.65KB) Advice about what constitutes an individually constructed vehicle (ICV), and the differences between ICVs and modified vehicles.
VSI 57 Driving in snow and ice conditions (PDF 805.06KB) Advice on driving in snow and ice conditions.
VSI 58 Number plate visibility (PDF 747.27KB) Advice on the requirements for positioning number plates on vehicles in a way that ensures the number plates’ visibility.
VSI 60 Carrying motorised mobility devices and motorcycles on vehicles (PDF 251.55KB) A guide to the safety and legal requirements that apply when carrying a motorised mobility device (MMD), such as an electric wheelchair or mobility scooter, or a motorcycle, on a rack fitted to the rear of a motor vehicle.
VSI 62 Transporting yachts on trailers (PDF 4.78MB) A guide to safely transporting yachts and the dimension limits that apply to vehicle and trailer combinations.
VSI 63 Number plate warning labels (PDF 430.06KB) A guide to the requirements for number plate warning labels for motor vehicles powered by alternative fuel types & Electric Vehicles
VSI 64 Aftermarket forward facing lamps (PDF 240.93KB) Advice on the different types of aftermarket forward facing lamps that may be fitted to a light motor vehicle, excluding mopeds, motorcycles, and motortricycles.
VSI 65 Vehicles used for film and television Standards Information No-65 (PDF 1002.12KB) Advice on the construction requirements for vehicles modified for use by the film industry.
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