Special purpose vehicle requirements

A special purpose vehicle (SPV) is a vehicle built for a purpose other than carrying goods such as a mobile crane, a concrete pump or drill rig. An  SPV exceeds one or more of the general mass and dimension limits set out in the Heavy Vehicle Mass, Dimension and Loading National Regulation, and is a Class 1 heavy vehicle.

Check permit requirements and find out what heavy vehicle network routes apply.

No permit required

In South Australia, a permit is not required for a SPV when:

  • complying with the relevant mass and dimension requirements outlined in the National Class 1 Special Purpose Vehicle Notice 2021 (the Notice). 
  • travelling on one of two networks on the South Australian RAVnet Map System:
    • Three-axle Crane Network, for three-axle all terrain mobile cranes.
    • 40.0t Special Purpose Vehicle Network, for all other SPVs operating under the Notice.

Permit required

Operators of SPVs that are not eligible to operate under the Notice in South Australia will need to apply to the National Heavy Vehicle Regulator (NHVR) for a permit through the NHVR portal.

Mobile cranes

Mobile cranes that are not covered by the Notice may operate under an access permit and travel  on one of the following networks as shown on the RAVnet Map System.

  • 4 axle crane network
  • 5 axle crane network (up to 3.1 metres wide)
    • 24/7 travel on the ‘5 Axle Crane Network - Level One’
    • Requires one permit that references ‘5 Axle Crane Network - Level One’
  • 5 axle crane network (between 3.1 metres and 3.20 metres wide)
    • 24/7 travel on the ‘5 Axle Crane Network - Level Two’ and daytime travel on the ‘5 Axle Crane Network - Level One’
    • Requires one permit that references the ‘5 Axle Crane Network - Level Two’ network (for 24/7 travel) and one permit that references ‘5 Axle Crane Network- Level One’ network (for daytime travel)
  • 6 axle crane network - day travel.


A pre-approval is an agreement in place between the NHVR and a road manager to issue permits without individual written road manager consent for each application.

Participating road managers for cranes towing trailers - pre-approval list.

Recent updates to South Australian SPV pre-approvals are shown below:



Class 1 - All Terrain Cranes (4, 5 and 6 axle up to 12t per axle)

Length limit for 4 axle cranes is 14.5 metres
Length limit for 5 axle cranes is 16.5 metres
Length limit for 5 axle cranes is 18.5 metres

Cranes towing trailers

Operators of 3 axle and 4 axle cranes can now apply for a permit to tow an equipment trailer on roads under the care and control of participating road managers that are published to the 4 Axle Crane Network on the South Australian RAVnet Map System.

For further information:

Contact National Heavy Vehicle Regulator


Email: info@nhvr.gov.au

Web: www.nhvr.gov.au


Phone: 1300MYNHVR (1300 696 487)

Fax: (07) 3309 8777


    PO Box 492
    Fortitude Valley QLD 4006

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    Page last updated 12 July 2021

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