General Access Vehicle V2.0

General 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. Heavy vehicle size and weight restrictions are know as General Dimension Limits and General Mass Limits. Permits are not required for GAV’s that keep within these mass and dimension limits.

GAV Dimension Limits

Vehicle dimensions apply to all heavy vehicles. If a GAV exceeds a dimension limit, it becomes a Restricted Access Vehicle (RAV) and will require a notice or permit to access a road or network. The following tables give an overview of the general dimension for the six categories of General Access Vehicles:

Prime mover Rigid truck Rigid trucks and trailer combinations Prime mover semitrailer combinations Bus Level 1 Performance Based Vehicles (PBS)
GAV - Prime Movers General Access Vehicle - Rigid Truck General Access Vehicle - Rigid truck and trailer combinations General Access Vehicle - Prime mover semitrailer combinations Controlled Access Bus GAV - PBS Level 1 example
The prime mover is the vehicle cab and axle which tows the vehicle trailers. A rigid truck has its cargo carrying space affixed to the cab of the heavy vehicle. This combination includes a fixed cargo carrying space and a detachable trailer, under 19 metres. A prime movertowing a removable trailer or trailers, under 19 metres in length. A people moving vehicle which carries more than X passengers, either single or double decks A custom designed vehicle which meets PBS standards, under 20 metres in length.

Width: 2.5M

Height: 4.3M

Length: 12.5M

Width: 2.5M

Height: 4.3M

Length: 12.5M

Width: 2.5M

Height: 4.3M

Length: 19M 

Width: 2.5M

Height: 4.3M, up to 4.6M for a specified trailer

Length: 19M 

Width: 2.5M

Height: 4.3 metres, up to 4.4M for double-decker bus

Length: 12.5M 

Width: 2.5M

Height: 4.3M

Length: 20 metres

Rear Overhang: 3.7m or 60% of the wheelbase (whichever is lesser) Rear Overhang: 3.7m or 60% of the wheelbase (whichever is lesser) Rear Overhang: 3.7 metres or 60% of the 'S' dimension (Wheelbase) (whichever is lesser) Rear Overhang: 3.7 metres or 60% of the 'S' dimension (Wheelbase) (whichever is lesser) Rear Overhang: 3.7m or 60% of the wheelbase (whichever is lesser) Rear Overhang: has been approved under PBS at Level 1
More detail about GAV Prime Movers More detail about GAV Rigid Trucks More detail about GAV Rigid Truck and Trailer combinations More detail about GAV Prime Mover Semi-Trailer Combinations More detail about GAV buses More detail about PBS GAV Vehicles

 

Note: More information on 4.6m high vehicles is provided in the NHVR information sheet Operating a 4.6m high heavy vehicle as a specified semitrailer and under other notices.

 

GAV Mass limits

General Mass Limits (GML) Concessional Mass Limits (CML) Higher Mass Limits (HML)
  • General Mass Limits (GML) apply to all heavy vehicles.
  • Unless otherwise signposted, a GAV operating at GML is provided access to all roads without the need for a permit or notice.
  • One tonne mass transfer allowance (1TMTA) applies in all Jurisdictions other than Queensland.More about 1TMTA
  • Any combination operating at Higher Mass Limits (HML) is considered a Restricted Access Vehicle (RAV) and must comply with the relevant state notice(s) or permit access conditions.
  • The 1TMTA does not apply to heavy vehicles operating under HML.
> More about GML > More about CML > More about HML

 

Download and print the vehicle chart

You can download and print a full copy of the NHVR Heavy Vehicle configurations and variation charts for quick reference. 

Common vehicle configurations chart

Common Heavy Freight Vehicle Configurations chart(PDF, MB)

The first three sections of the chart are General Access Vehicles.

 
Bus vehicle chart

Variations of Buses under the Heavy Vehicle National Law and Gazette Notices (PDF, MB)

The first table is a chart of General Access Vehicles

 
PBS vehicle chart

PBS Vehicle Configurations chart(PDF, MB)

Refer to the PBS level Column.


Other vehicle types - Restricted Access Vehicles

Restricted Access Vehicles (RAVs) are all other vehicles not outlined on this page. RAVs must be provided approval through a notice or a permit before travel on any road or network.

A RAV may be provided general access via a Notice. In these circumstances, the RAV can operate on all roads unless signposted otherwise, for example, bridge tonnage restrictions.


Definitions - Click to expand for page glossary

 

Name of the defined term

Definitions

Source

Complying steer axle vehicle

a heavy vehicle with a GVM over 15 tonnes fitted with specified technologies, including an engine complying with ADR 80/01 (Euro IV), Front Under-run Impact Protection that meets UN ECE Regulation no 93 or ADR 84, and cabin strength that meets the requirements of UN ECE Regulation no 29, are permitted up to 6.5 tonnes on the steer axle provided it does not exceed the manufacturers rating. Allowable GVM/GCM may then also be increased by up to 0.5 tonnes.

Heavy Vehicle (Mass, Dimension and Loading) National Regulation

Twinsteer

a hauling that is fitted with a tandem steering axle group.  

The tandem steer axle group is equipped with single tyres to both axles and connected to the same steering column. The axles are spaced at least 1m apart but no more than 2m apart. 

Figure 1 demonstrates the minimum axle spacing requirements of a prime mover fitted with a twinsteer axle group, required to obtain the maximum GML as 11t for load sharing .

GAV - Twinsteer max mass limit spacing

Figure 1 Twinsteer maximum mass limit spacing requirement

Heavy Vehicle National Law

load-sharing suspension system (of an axle group)

means a suspension system:

(a) built to divide the load between the tyres on the group so no tyre carries a mass more than 10% above the mass it would carry if the load were divided equally; and

(b) with effective damping characteristics on all axles of the group

Heavy Vehicle (Mass, Dimension and Loading) National Regulation

Eligible 3-axle bus

means: the bus

(a) was manufactured before 1 January 2015; and

(b) has 3 axles, including a rear tandem axle group fitted with single tyres on 1 axle and dual tyres on the other axle; and

(c) is 1 of the following—

(i) a complying bus;

(ii) a bus, other than an articulated bus, whose Length is more than 12.5m but not more than 14.5m;

(iii) an ultra-low floor bus;

(iv) a bus, other than an ultra-low floor bus that is authorised to carry standing passengers under an Australian road law; and

(d) is fitted with—

(i) a complying anti-lock braking system; or

(ii) a vehicle stability function that complies with the version of UN ECE Regulation No. 13 applied to the bus at the bus's date of manufacture or a later version of UN ECE Regulation No. 13.

Heavy Vehicle (Mass, Dimension and Loading) National Regulation

Eligible 2-axle bus

means bus—

(a) was manufactured before 1 January 2016; and

(b) has 2 axles, 1 of which is a single-drive axle fitted with dual tyres; and

(c) is 1 of the following—

(i) a complying bus;

(ii) an ultra-low floor bus;

(iii) a bus, other than an ultra-low floor bus that is authorised to carry standing passengers;

(iv) a bus, other than an articulated bus, whose Length is more than 12.5m but not more than 14.5m; and

(d) is fitted with—

(i) a complying anti-lock braking system; or

(ii) a vehicle stability function that complies with the version of UN ECE Regulation No. 13 applied to the bus at the bus's date of manufacture or a later version of UN ECE Regulation No. 13.

Heavy Vehicle (Mass, Dimension and Loading) National Regulation

Bus

means a heavy motor vehicle built or fitted to carry more than 9 adults (including the driver).

Heavy Vehicle National Law

Complying bus

means a bus with 2 or 3 axles, 1 of which is a steer axle, that is fitted with an approved air suspension system and meets— (a) the emergency exit specifications in ADR 44; and (b) the rollover strength specifications in ADR 59; and (c) the occupant protection specifications in ADR 68.

Heavy Vehicle (Mass, Dimension and Loading) National Regulation

Ultra-low floor bus

means a bus that—

(a) has stairless entry; and

(b) is accessible to wheelchairs; and

(c) is authorised to carry standing passengers

Heavy Vehicle (Mass, Dimension and Loading) National Regulation

'S' dimension

the measurement from the front articulation point to the rear overhang line, also known as wheelbase.