Road access and usage

Driving on the road network

To drive on the road network, vehicles need to be within certain weight and dimension limits. Vehicles outside these limits may require special permits, or must travel under conditions.


  • Light vehicles and combinations - Gross Vehicle Mass (GVM) or Aggregate Trailer Mass (ATM) not exceeding 4.5 tonnes
  • Heavy vehicles and combinations - GVM or an ATM of more than 4.5 tonnes.

Light vehicles

Light vehicles and light combinations that exceed the prescribed dimension limits can travel under the NSW Light Vehicle Agricultural and Load Exemption Ministerial Order 2015 if they meet the requirements of the Order.

More information about road access for overdimension light vehicles.

Heavy vehicles

Heavy vehicle operations are regulated under the Heavy Vehicle National Law and National Regulations by the National Heavy Vehicle Regulator (NHVR). The HVNL and Regulations took effect on 10 February 2014. To access the legislation as it applies in NSW go to the NSW Legislation website.

More information about heavy vehicles.

Using bridges and other structures for non-traffic activities

Roads and Maritime Services endeavours to support community access to bridges, roads and other structures, however there are conditions, and permission is required.

More information about using roads, bridges and other structures for non-traffic activities.

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