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, they must be within the size and weight range outlined below.

The heavy vehicle size and weight restrictions are known in the industry as general dimension and mass limit requirements. Permits are not required for vehicles which keep within these mass and dimension limits. 

GAV Dimension Limits

Vehicle dimension limits apply to all heavy vehicles. A notice or permit may provide an exemption to the vehicle dimensions if your vehicle exceeds these limits. The following table shows general dimensions for the five categories of General Access Vehicles:

Rigid Trucks Prime Mover Semitrailer Combinations Rigid trucks and trailer combinations. Bus Level 1 Performance Based Vehicles
General Access Vehicle - 2 Axle Rigid Truck General Access Vehicle - 3 Axle Semitrailer General Access Vehicle - 2 axle truck with 2 axle dog trailer Controlled Access Bus PBS level 1

Width: 2.5M

Height: 4.3M

Length: 12.5M

Width: 2.5M

Height: up to 4.6M

Length: 19M 

Width: 2.5M

Height: 4.6M

Length: 19M 

Width: 2.5M

Height: up to 4.4M for double decker

Length: 12.5M 

Width: 2.5M

Height: 

Length: 

Rear Overhang: 3.7m or 60% of the wheelbase (whichever is lesser) Rear Overhang:  Rear Overhang: 3.7 metres or 60% of the 'S' dimension (Wheelbase) (whichever is lesser)  Rear Overhang:  Rear Overhang: 
> More detail about GAV Rigid Trucks > More detail about GAV Prime Mover Semi-Trailer Combinations > More detail about GAV Rigid Truck and 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.

 

Mass limits

General Mass Limits (GML) Concessional Mass Limits (CML) Higher Mass Limits (HML) One tonne mass transfer allowance (1TMTA)
  • 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.
  • 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 applies in all Jurisdictions other than Queensland. The tri-axle group must be eligible for 20t under GML. The maximum increase under 1TMTA is 1 tonne, a total axle mass of 21t.
  • The increased mass must be offset by another non-steer axle or axle groups. The combinations total mass limit must not be exceeded.
  • The 1TMTA does not apply to heavy vehicles operating under CML, HML, permits or notices or PBS unless specially approved
> More about GML > More about CML > More about HML > More about 1TMTA

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.

These include:


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

means 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

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

The tandem steer axle group is fitted with single tyres to both axles and are 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 mentioned in Table 2 (11t for load sharing)  

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  

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