Over-dimension vehicles

Road train

Any vehicle which exceeds the overall dimensions of vehicles as defined in the Road Transport (Registration) Regulation 2007 is considered over-dimension. The Regulation defines the width, height, length and some internal dimensions of vehicles.

Vehicles which are overheight, oversize or overmass are subject to special operating conditions. This section contains information for operators of these vehicles, including:

  • Permit notices
  • B Double, Road Train & 4.6m High vehicle route maps
  • Route assessment guidelines
  • Permit Conditions booklet
  • Road occupancies and development information
  • Frequently asked questions

Overheight vehicles - specific information for operators

A vehicle is overheight if, together with its load, it is more than 4.3 metres high. Special conditions apply to overheight vehicles in NSW. Know the height of your vehicle along with its load before you leave the depot. More information is available on the Overheight vehicles page.

Mailing list

If you would like to receive email notifications of changes or issues affecting oversize and overmass operation within NSW, join our mailing list.