GAV - Prime Movers

GAV - Prime MoversGeneral Access Vehicles (GAV) don't require a permit or notice to access road networks; these vehicles have as-of-right access to the network unless otherwise signposted. For a heavy vehicle to be considered a GAV, it must be within the size and weight range outlined below.

The prime mover is the vehicle cab and axle which tows the vehicle trailers. The following prime movers are General Access Vehicles (GAVs) when complying with GML, CML and the general dimensions described below. Images in the table show the maximum applicable mass with the minimum required axle spacing. All prime movers must be within these dimensions:

  • Width: 2.5M
  • Height: 4.3M
  • Length: 12.5M
  • Rear Overhang: 3.7m or 60% of the wheelbase (whichever is lesser)

Prime mover axle description

Image

Max Length (metres)

Max Mass - GML (tonnes)

Max Mass - CML (tonnes)

Images show the maximum applicable mass with the minimum required axle spacing. A prime mover can operate at lesser mass limits with a smaller axle spacing, for more details refer to the general axle spacing mass limit.

Single Steer and drive axle GAV - Prime Mover - Single steer single drive axle 12.5m 15.0t CML does not apply to single axles
Complying Single Steer and drive axle GAV - Prime Movers complying single steer single drive axle 12.5m 15.5t CML does not apply to single axles 
Single Steer, tandem drive axle Gav - Prime Movers - single steer tandem drive axle 12.5m 22.5t 23.0t
Complying single Steer, tandem drive axle GAV - Prime Movers - Complying single steer tandem drive axle 12.5m 23.0t 23.5t
Single Steer, tri-axle drive group GAV - Prime Movers single steer tri drive axle 12.5m 26.0t 27.0t
Complying single Steer, tri-axle drive group GAV - Prime Movers complying single steer tri axle drive group 12.5m 26.5t 27.5t
Non-load sharing twin Steer, tandem drive single axle GAV - Prime Movers non-load sharing twin steer tandem drive axle 12.5m 26.5t 27.0t
Load sharing twin steer, tandem drive axle GAV - Prime Movers load sharing twin steer tandem drive axle 12.5m 27.5t 28.5t
Non-load sharing twin Steer, tri-axle drive group GAV - Prime Movers non-load sharing twin steer tri drive axle group 12.5m 30.0t 31.0t
Load sharing twin steer, tri-axle drive group GAV - Prime Movers load sharing twin steer tri drive axle 12.5m 31.0t 32.0t

 

Note: Combinations operating at Higher Mass Limits (HML) are considered a Restricted Access Vehicle (RAV) and must comply with the relevant state notice or permit conditions.

 


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