South Australian Class 3 Truck and Dog (up to 23m) Mass and Dimension Exemption Notice Operator’s Guide

The South Australia Class 3 Truck and Dog Trailer (up to 23m long) Mass and Dimension Exemption Notice 2025 (No.1) provides access to eligible truck and dog combinations on the approved network, subject to the conditions contained in the Notice and this Operator’s Guide.

Access is also granted to B-double commodity routes, details of which are provided in the 'Network and Mapping' section of this Operator's Guide.

This instrument does NOT exempt these heavy vehicles from other requirements of the Heavy Vehicle National Law (HVNL), including, but not limited to, other mass and dimension requirements.

Specifications
Gazette Notice:	C2025G00485
Starts:	4 September 2025
Expires:	3 September 2030
Vehicle types:	Class 3 truck and dog combinations
Exemptions:	Mass requirements (general combination mass, single vehicle mass) Dimension requirements (general length, combination length)
Law:	HVNL, MDL
Coverage:	SA
To be carried:	No

Overview

The information in this Operator’s Guide is intended to do two things:

Explain how the [notice name] (the Notice) operates, to assist in complying with it. It is important to remember this Operator’s Guide is instructional only and it is the Notice that provides the exemption or authorisation. If there is a difference or misunderstanding between the Operator’s Guide and the Notice, the Notice has priority and must be followed. The only exceptions are the requirements or conditions set out in the ‘Network and Mapping’ section explained below.
Provide additional information referred to in the network requirements of the Notice. This includes links to network maps and other information such as vehicle, travel and road conditions. Networks and their conditions published in the Network and Mapping section of this Operator’s Guide are not general advice and must be treated as conditions of the Notice.

Please read the Notice and this Operator's Guide together. To download or print this guide, use the print or PDF buttons on the top right of this page

About the Notice

The Notice provides heavy vehicle combinations that are up to 23.0m long and which consist of a truck with a single steer axle and a dual-drive tandem axle group towing a 3-axle, 4-axle or 5-axle dog trailer with exemptions to mass and dimension requirements under the Heavy Vehicle (Mass Dimension and Loading) National Regulation (MDL Regulation).

Exemptions

These exemptions only apply to the extent to which conditions are granted.

Dimension exemptions

An eligible vehicle is exempt from the following dimension requirement under Schedule 6 of the MDL:

section 3(1)(a) - Length (combination or single vehicle)

Mass exemptions

An eligible vehicle is exempt from the following mass requirement specified in Schedule 1 of the MDL:

section 2(1)(a)(iv) and 2(4) - Mass limits for a single vehicle or combination

The exemption only applies to the combination mass. If two or more limits are provided that impose different limits, the lower limits apply.

Note: Other mass and dimension limits in the MDL Regulation apply.

Definitions

The following are terms used in this Notice or conditions of operation. Unless otherwise stated, words and expressions used in this Notice have the same meaning as defined in the HVNL.

Term	Definition
ADR	Means the Australian Design Rules
Certified road-friendly suspension system (RFS)	Means a suspension system certified as a road-friendly suspension system by the Vehicle Safety Standards Branch of the Commonwealth Department of Infrastructure, Transport, Regional Development, Communications and the Arts in accordance with the Vehicle Standards Bulletin Number 11 (revised edition) published by that branch in July 2004.
Complying steer axle vehicle	A complying steer axle is a single steer axle attached to a heavy vehicle that has all of the following — an engine complying with the emission control requirements contained in— ADR 80/01 or a later version of ADR 80; or if a version of ADR 80 later than ADR 80/01 applied to the vehicle at the vehicle’s date of manufacture—the version of ADR 80 that applied to the vehicle at the vehicle’s date of manufacture or a later version of ADR 80; a front underrun protection device that complies with UN ECE Regulation No. 93 or ADR 84–Front Underrun Impact Protection; a cabin that complies with UN ECE Regulation No. 29; appropriately rated tyres, axle and suspension to permit 6.5t on the steer axle; a GVM of 15t or more.
Dog trailer	Means a trailer (including a trailer consisting of a semitrailer and converter dolly) that has— one tandem axle group or a single axle at the front that is being steered by connection to a towing vehicle by a drawbar; and one tandem axle group at the rear.
Drive axle group	Means a tandem axle group or a single axle driven by the vehicle’s engine.
General access	Means access to all roads in participating jurisdictions, except as restricted by the 'Specified road manager network requirements' in the Guide.
HVNL	Heavy Vehicle National Law.
MDL/ MDL Regulation	Heavy Vehicle (Mass, Dimension and Loading) National Regulation.
Rigid truck combination	A truck towing one or more trailers.
Single axle	Means one axle, or two axles in which the horizontal distance between the centre-lines of the outermost axles is less than 1m.
Steer axle	Means the front steerable axle used to steer the vehicle.
Steer axle group	Means a group of one or two axles with single tyres, fitted to a motor vehicle and connected to the same steering mechanism with the axles at least 1m (but not more than 2m) apart.
Tandem axle group	Means a group of at least two axles with the outermost axles at least 1m (but not more than 2m) apart.
The Notice	South Australia Class 3 Truck and Dog Trailer (up to 23m long) Mass and Dimension Exemption Notice 2025 (No.1)
Truck	A rigid motor vehicle built mainly as a load-carrying vehicle.
VS Regulation	Heavy Vehicle (Vehicle Standards) National Regulation.

Eligible vehicles

To be eligible to operate under the Notice, approved combinations must comply with the conditions of the Notice and all other requirements of the MDL, except where specifically exempted by the Notice.

The eligible vehicles listed in Table 1 are indicative of the vehicles that can operate under the Notice.

**Table 1**: Eligible vehicles
Combination description and diagram	Mass and dimension limits
Combination description and diagram	Height (m)	Width (m)	Length (m)	Mass limit (t)*
Rigid truck with a single steer axle and a dual-drive tandem axle group towing a 3-axle dog trailer with a single axle at the front and a tandem axle group at the rear	4.3	2.5	Up to 23.0	48.0
Rigid truck with a single steer axle and a dual-drive tandem axle group towing a 4-axle dog trailer with a tandem axle group at the front and a tandem axle group at the rear	4.3	2.5	Up to 23.0	55.5
Rigid truck with a single steer axle and a dual-drive tandem axle group towing a 5-axle dog trailer with a tandem axle group at the front and a tri-axle group at the rear	4.3	2.5	Up to 23.0	59.0
*An eligible vehicle operating under this Notice can not exceed General Mass Limits. If an eligible vehicle is a complying steer axle vehicle, then the steer axle may have an additional mass limit of 0.5t, which is added to the total combination mass limits in Table 2.

Conditions

Notices are subject to various conditions to ensure public safety, protect assets and prevent adverse impacts on the community, such as noise, emissions and traffic congestion. See the sections below for specific conditions related to the Notice.

Dimension conditions - Click to expand

An eligible vehicle must not be longer than 23.0m in length.

Mass conditions - Click to expand

An eligible vehicle operating under the general mass limits must not be more than shown in Table 2.

If an eligible vehicle is a complying steer axle vehicle, then the steer axle may have an additional mass limit of 0.5t, which is added to the total combination mass limits in Table 2.

**Table 2**:Total combination mass limits
Combination description and diagram	Total combination mass limit (t)*
Combination description and diagram	Total combination mass limit (t)*	Rigid truck with a single steer axle and a dual-drive tandem axle group towing a 3-axle dog trailer with a single axle at the front and a tandem axle group at the rear	48.0
Rigid truck with a single steer axle and a dual-drive tandem axle group towing a 4-axle dog trailer with a tandem axle group at the front and a tandem axle group at the rear	55.5
Rigid truck with a single steer axle and a dual-drive tandem axle group towing a 5-axle dog trailer with a tandem axle group at the front and a tri-axle group at the rear	59.0
*An eligible vehicle operating under this Notice can not exceed General Mass Limits. If an eligible vehicle is a complying steer axle vehicle, then the steer axle may have an additional mass limit of 0.5t, which is added to the total combination mass limits.

Axle spacing

Rigid truck towing a 3-axle dog trailer

An eligible vehicle that is a truck towing a 3-axle dog trailer must comply with minimum axle spacing requirements listed in column 2 in Table 3, as per the spacing reference in column 1 of Table 3.

An eligible truck and 3-axle dog trailer — *Figure 1: Rigid truck and 3-axle dog trailer*

**Table 3:** Minimum axle spacings for a truck and 3-axle dog trailer
Column 1		Column 2
Spacing reference (Point A to B)		Minimum axle spacing (m)
Point A	Point B	Minimum axle spacing (m)
Centre of steer axle	Centre of last drive axle on the truck	3.50
Centre of steer axle	Centre of last axle in the combination	12.30
Centre of first drive axle on the truck	Centre of last axle on the trailer	9.80
Centre of first drive axle on the truck	Centre of first axle on the trailer	4.30
Centre of first axle on the trailer	Centre of last axle on the trailer	4.30

Rigid truck towing a 4-axle dog trailer

An eligible vehicle that is a truck towing a 4-axle dog trailer must comply with minimum axle spacing requirements listed in column 2 in Table 4, as per the spacing reference in column 1 of Table 4.

An eligible truck and 4-axle dog trailer — *Figure 2: Rigid truck and 4-axle dog trailer*

**Table 4:** Minimum axle spacings for a truck and 4-axle dog trailer
Column 1		Column 2
Spacing reference (Point A to B)		Minimum axle spacing (m)
Point A	Point B	Minimum axle spacing (m)
Centre of steer axle	Centre of last drive axle on the truck	3.50
Centre of steer axle	Centre of last axle in the combination	17.30
Centre of steer axle	Centre of last axle of the first trailer tandem axle group	8.80
Centre of first drive axle on the truck	Centre of last axle of the first trailer tandem axle group	6.80
Centre of first drive axle on the truck	Centre of last axle in the combination	13.30
Centre of first axle of the first trailer tandem axle group	Centre of last axle in the combination	6.80

Rigid truck towing a 5-axle dog trailer

An eligible vehicle that is a truck towing a 5-axle dog trailer must comply with minimum axle spacing requirements listed in column 2 in Table 5, as per the spacing reference in column 1 of Table 5.

An eligible truck and 5-axle dog trailer — *Figure 3: Rigid truck and 5-axle dog trailer*

**Table 5:** Minimum axle spacings for a truck and 5-axle dog trailer
Column 1		Column 2
Spacing reference (Point A to B)		Minimum axle spacing (m)
Point A	Point B	Minimum axle spacing (m)
Centre of steer axle	Centre of last drive axle on the truck	3.50
Centre of steer axle	Centre of last axle in the combination	12.30
Centre of first drive axle on the truck	Centre of last axle in the combination	9.80
Centre of first drive axle on the truck	Centre of last axle of the first trailer tandem axle group	4.30
Centre of first axle of the first trailer axle tandem group	Centre of last axle in the combination	4.30

Other conditions and additional information

Assessing routes

Before an eligible vehicle is driven along any route, its driver and operator must be satisfied that the route has been assessed and that the vehicle can be driven along it without:

disrupting telecommunication, electricity, rail, gas, water or sewage services; or
damaging a road (including a bridge), structure, rail crossing or tree.

Prior to commencing a journey a driver or operator of an eligible vehicle must check for any information about updates and any restrictions or limitations applying to the proposed route.

The driver or operator must, before commencing the relevant journey, identify any relevant road closures and road conditions or restrictions that may inhibit the movement of the eligible vehicle.

Third party approvals

Gazette notices, permits and some jurisdictional laws may require third parties and other entities to provide permission for a vehicle to travel if it exceeds certain mass or dimension limits.

Operators must secure all approvals from third parties such as electricity/utility companies, rail authorities and other third parties as part of their heavy vehicle operations.

For more information, visit the Third party approvals page.

Warning signs

Eligible combinations longer than 22m but not longer than 30m must display a long vehicle warning sign at the vehicle's rear (as shown in Figure 4).

Warning sign requirements are described in the NHVR's VSG19 - Vehicle warning signs (Long vehicle and Road train) (PDF, 547KB).

*Figure 4: Example of a long vehicle sign*

Loading requirements

To meet the loading requirements, the heavy vehicle must be loaded:

in a way that load placement does not make the heavy vehicle unsafe or unstable
in a way that the load is not likely to fall or be dislodged from the vehicle
using an appropriate system to restrain the load.

Visit the NHVR loading page for more information on load requirements.

Complying with the HVNL

Unless otherwise exempted by the Notice or this Operator's Guide, operators must ensure their vehicle or combination complies with the:

Australian Design Rules (ADRs); and,
Heavy Vehicle National Law (HVNL); and,
Heavy Vehicle (Mass, Dimension and Loading) National Regulation (MDL); and,
Heavy Vehicle (Vehicle Standards) National Regulation (VS Regulation).

Using or permitting another person to use a defective heavy vehicle or a heavy vehicle with unapproved modifications on a road may be an offence.

Failure to comply may result in the driver and/or operator being liable for an offence. Penalties can include infringement notices or prosecution.

Chain of Responsibility (CoR)

Under the HVNL, every party in the Chain of Responsibility (CoR) has a positive duty to ensure the safety of their activities in relation to a heavy vehicle. This duty, known as the “primary duty”, applies to the scheduling, loading and consigning of a vehicle, as well as to its operation on a road.

Safety is broader than the safety of drivers and other road users. It also includes protection of road infrastructure, preventing damage to other vehicles or property, and minimising environmental harm. Substantial penalties may be imposed upon parties who breach this obligation and upon their executives.

For more information on your CoR obligations visit Chain of Responsibility on the NHVR website.

Our Regulatory Advice offers guidance, tips and tools for managing a range of heavy vehicle safety risks.

The requirement to carry the Notice

Drivers do not need to carry a copy of the Notice.

Network and mapping

For the purposes of s121 of the HVNL an area or route specified in the 'Network & Mapping' section of this Operator's Guide is a stated area or route to which this Notice applies. In addition to complying with the conditions stated in this Operator's Guide, operators must ensure compliance with the specific road manager access requirements set out below or in network maps.

In this tab, you will find the approved routes authorised under the Notice. There may also be network conditions pursuant to the stated areas and routes under the Notice. Network conditions relate to road and travel conditions that are not contained within the Notice.

National Network Map

The Notice may refer to state or territory government websites for the publication of networks. Certain authorised heavy vehicle road network maps for the Australian Capital Territory, New South Wales, Queensland, South Australia, and Victoria are published by the National Heavy Vehicle Regulator, through the NHVR National Network Map. Additional information and guidance can be found on the National Network Map webpage.

Approved routes covered by the Notice

The following routes are approved for travel for vehicles eligible under the Notice.

Approved routes covered by the Notice - Click to expand

Eligible vehicles can operate on the Rigid Truck and Dog (23m) (GML) network.

Additionally, eligible vehicles can also operate on a network specified in Column 1 of Table 7. Operation on these networks is restricted to the road managers that have provided approval to access their roads, as listed in Table 6. Operation on these networks requires that the vehicle is solely transporting the commodity listed in Column 2 of Table 7.

**Table 6:** Road managers providing additional access
Road manager
Department for Infrastructure and Transport (DIT)
District Council of Ceduna
District Council of Cleve
District Council of Elliston
District Council of Franklin Harbour
District Council of Kimba
District Council of Lower Eyre Peninsula
District Council of Tumby Bay
Wudinna District Council

Viewing roads maintained by the Department for Infrastructure and Transport listed in Table 7 requires selecting the relevant commodity route and selecting ‘Layers and controls’ (bottom left corner on the National Network Map), selecting ‘Road Management’, and then selecting ‘State’.

Viewing council boundaries listed in Table 7 requires selecting the relevant commodity route and selecting ‘Layers and control’, ‘Boundaries’, and then selecting ‘LGA’.

**Table 7:** Commodity routes
Column 1	Column 2
Network	Commodity
Commodity Routes - Grain (B Double GML)	Grain
Commodity Routes - Fertiliser (B Double GML)	Fertiliser
Commodity Routes - Hay & Bulk Stock Feed (B Double GML)	Hay and bulk stock feed
Commodity Routes - Dairy Milk (B Double GML)	Dairy milk
Commodity Routes - Livestock (B Double GML)	Livestock
Commodity Routes - Logging & Timber (B Double GML)	Logging and timber
Commodity Routes - Wine (B Double GML)	Wine
Commodity Routes - Wool (B Double GML)	Wool
Commodity Routes - Fruit & Veg (B Double GML)	Fruit and vegatables

Specified road manager network requirements

The following section outlines specific road manager network requirements under the Notice, including route conditions, restrictions, and non-participating road managers.

Road manager network requirements in this section may change from time to time and should be reviewed regularly to ensure compliance.

For further information on how to comply with a requirement, please contact the relevant road manager.

Road managers may publish specific route conditions and restrictions on the approved network map. These must be complied with in addition to any route requirements outlined in this Operator's Guide. If a condition listed in any section of this Operator's Guide conflicts with a route condition or restriction published on an approved network map, the more restrictive requirement applies.

South Australia network conditions - Click to expand

Dimension Restrictions map

The Dimension Restrictions map has been developed to assist in journey and route planning and should be used alongside the National Heavy Vehicle Regulator’s Route Planner and TrafficSA prior to commencing any journey in South Australia.

The map includes the following information:

points, roads, and zones where there are dimension limitations (height, width and length)
major railways and level crossings
pilot and marshalling locations in South Australia
network access notes.

For further information about the map, please visit the Dimension Restrictions map webpage.

Restricted structures

Eligible vehicles are not permitted to operate on the restricted structures listed in Table 8.

**Table 8:** Restricted structures in South Australia
Restricted structure	Restricted structure location
Gumeracha Bridge	Over River Torrens on Torrens Valley Road between Chain of Ponds and Gumeracha
Railway Tunnel (Murray Bridge)	Under Bridge Street, Murray Bridge
Old Murray Bridge	Bridge Street, over the River Murray at Murray Bridge
Birkenhead Bridge	Nelson Street, over Port River at Port Adelaide (the lifting bridge)
Railway Bridge at Gawler	On Overway Bridge Road, Gawler

District Council of Ceduna

Road condition

An eligible vehicle must not operate on unsealed roads for routes in an area that has received greater than 15mm of rain in the preceding 24 hours of the rain event.

Speed restrictions

An eligible vehicle whether loaded or unloaded is restricted to the following speeds:

80km/h on sealed Council maintained roads with speed limits posted above 80km/h;
70km/h on unsealed Council maintained roads with speed limits posted above 60km/h;
40km/h on all Council maintained roads with speed limits posted at 60km/h or lower.

District Council of Cleve

Restricted speed limit loaded or unloaded of 70km/h on unsealed roads outside of town limits.
Restricted speed limit of 40km/h within town limits on Main Street, Cleve.

District Council of Elliston

No access to unsealed routes that have received greater than 30mm of rain in the preceding 24 hours.
Restricted speed limit loaded or unloaded of 60km/h on all commodity routes.
Hauling units to be fitted with a yellow revolving flashing light that can be viewed from 360 degrees by approaching traffic.
Driver to stop and give way to other road users where they would normally have priority to allow the other vehicle to clear the intersection prior to the RAV undertaking a turning manoeuvre.

District of Franklin Harbour

Restricted speed limit loaded or unloaded of 70km/h on unsealed roads outside of town limits.
Restricted speed limit of 40 km/h within town limits.
RAV operators are to inspect all unsealed routes that have received greater than 15mm of rain in the preceding 24 hours to ensure that the pavement will not be damaged by RAV operation.

District Council of Kimba

Restricted speed limit loaded or unloaded of 70km/h on unsealed roads outside of town limits.
Restricted speed limit of 40 km/h within town limits.

District Council of Lower Eyre Peninsula

Restricted speed limit loaded or unloaded of 70km/h on unsealed roads outside of town limits.
Restricted speed limit of 40 km/h within town limits.
No access to unsealed routes that have received greater than 15mm of rain in the preceding 24 hours.

District Council of Tumby Bay

Restricted speed limit loaded or unloaded of 70km/h on unsealed roads outside of town limits.
Restricted speed limit of 40 km/h within town limits.
RAV operators are to inspect all unsealed routes that have received greater than 15mm of rain in the preceding 24 hours to ensure that the pavement will not be damaged by RAV operation.

Wudinna District Council

Restricted speed limit loaded or unloaded of 70km/h on unsealed roads outside of town limits.
Restricted speed limit of 40 km/h within town limits.
RAV operators are to inspect all unsealed routes which have received greater than 15mm of rain in the preceding 24 hours to ensure that the pavement will not be damaged by RAV operation.
Operators may be liable for the cost of pavement repairs.

Traffic advisory services - Click to expand

Prior to commencing any journey, operators should review traffic alerts, road closures, travel delays, and other traffic advisory information for participating jurisdictions.

Table 9 provides details and links to official traffic advisory services for each participating jurisdiction. For more information about a particular service, contact the relevant jurisdiction or department via the contact details listed on the service webpage.

Table 9: Traffic advisory services

Jurisdiction	Website	Purpose
South Australia	Outback Road Warnings	Access the latest information about temporary closures, restrictions, and warnings for outback roads north and west of Port Augusta.
	Prescribed burns	Information about upcoming prescribed burns in South Australia that may disrupt travel.
	Traffic SA	View live information about incidents and changes in South Australia traffic conditions. Traffic SA is available as a mobile app. See Addinsight download details on the Traffic SA website.

Applying for a permit - Click to expand

Access permit applications are required for heavy vehicles that don’t comply with the conditions set out in a notice and when accessing routes that aren’t covered on an approved network.

The following pages provide useful information and resources for submitting access permit applications:

Do I need a permit?: Information and resources for determining whether a road access permit, or a Notice is required to operate on Australian roads.
Access permit application process: Information, resources, and instructions for submitting a valid access permit application.

Related notices

In this tab, you will find a list of national, state and territory notices related to the South Australian Class 3 Truck and Dog (up to 23m) Mass and Dimension Exemption Notice 2025 (No.1).

A related notice may be comparable with this Notice or provide alternatives for operators to find the appropriate notice under which to operate.

Related national notices

Jurisdiction	Notice
National	National Class 2 PBS Level 1 & 2a Truck and Dog Trailer Authorisation Notice 2024 (No.2) Authorises the use of 3 and 4 axle trucks towing 3-, 4- or 5-axle dog trailer PBS combinations on gazetted networks. This Notice refers to other documents that may also be required to be carried including other notices, certificates, codes of practice, maps etc. Please note the following supporting documents for this Notice: Information Sheet - National Class 2 PBS Level 1 & 2A Truck and Dog Trailer Authorisation Notice (PDF, 296KB) National Class 2 Performance Based Standards (Tier 1) Authorisation Notice 2022 (No.1) Provides eligible Tier 1 Performance Based Standards (PBS) vehicles with immediate access to relevant PBS networks across Australia to operate on approved networks without the need of a permit as soon as a Vehicle Approval is issued, although this may be at a restricted mass. National Class 3 20m Long 3-axle Truck and 4-axle Dog Trailer Mass and Dimension Exemption Notice 2024 (No.1) Provides 3-axle truck and 4-axle dog combinations that do not exceed 20m in length with access to approved networks in the ACT, New South Wales, Queensland, South Australia and Victoria. Please note the following supporting documents for this Notice: FAQs - National Class 3 20m Long 3-axle Truck and 4-axle Dog Trailer Mass and Dimension Exemption Notice National Class 3 Truck and Dog Trailer Mass Exemption Notice 2023 (No.1) Exempts truck and dog trailer combinations from prescribed mass requirements and provide access on certain networks under specified conditions.

Jurisdiction

Notice

National

National Class 2 PBS Level 1 & 2a Truck and Dog Trailer Authorisation Notice 2024 (No.2)

Authorises the use of 3 and 4 axle trucks towing 3-, 4- or 5-axle dog trailer PBS combinations on gazetted networks.

This Notice refers to other documents that may also be required to be carried including other notices, certificates, codes of practice, maps etc.

Please note the following supporting documents for this Notice:

Information Sheet - National Class 2 PBS Level 1 & 2A Truck and Dog Trailer Authorisation Notice (PDF, 296KB)

National Class 2 Performance Based Standards (Tier 1) Authorisation Notice 2022 (No.1)

Provides eligible Tier 1 Performance Based Standards (PBS) vehicles with immediate access to relevant PBS networks across Australia to operate on approved networks without the need of a permit as soon as a Vehicle Approval is issued, although this may be at a restricted mass.

National Class 3 20m Long 3-axle Truck and 4-axle Dog Trailer Mass and Dimension Exemption Notice 2024 (No.1)

Provides 3-axle truck and 4-axle dog combinations that do not exceed 20m in length with access to approved networks in the ACT, New South Wales, Queensland, South Australia and Victoria.

Please note the following supporting documents for this Notice:

FAQs - National Class 3 20m Long 3-axle Truck and 4-axle Dog Trailer Mass and Dimension Exemption Notice

National Class 3 Truck and Dog Trailer Mass Exemption Notice 2023 (No.1)

Exempts truck and dog trailer combinations from prescribed mass requirements and provide access on certain networks under specified conditions.

Related state and territory notices

Jurisdiction	Notice
Queensland	Queensland Class 3 Truck and Dog (exceeding 19m up to 31.5m in length) Mass and Dimension Exemption Notice 2022 (No.1) Exempts truck and dog combinations that are longer than 19m but no longer than 31.5m from the steer mass limits and dimension requirements including length, width and height of the Heavy Vehicle (Mass, Dimension and Loading) National Regulation.
South Australia	South Australia Class 3 Heavy Vehicle Truck and Dog (Stobie Pole) Dimension Exemption Notice 2023 (No.1) Provides exemptions to dimension requirements for a class 3 heavy vehicle consisting of a rigid truck and a dog trailer that is transporting Stobie poles.
Tasmania	Tasmania Class 3 Truck and Dog Trailer Mass and Dimension Exemption Notice 2024 (No.1) This Notice grants exemptions from mass and dimension requirements for Class 3 vehicles that are truck and dog combinations.
Victoria	Victoria Class 3 Log Carrying Truck and Dog Trailer Mass and Dimension Exemption Notice 2024 (No.1) Concession for log-carrying truck and dog trailer combinations to be up to 22m long.

Resources

All information about the Notice is contained in this Operator’s Guide. Please refer to the tabs for more information about the Notice, or contact us with your specific questions.

Note: If you have any feedback on the information provided, please contact us at info@nhvr.gov.au

Participating jurisdiction heavy vehicle resources

For more information about operating a heavy vehicle in participating jurisdictions, refer to the following sites:

South Australia: Department for Infrastructure and Transport (DIT) - Heavy vehicles

Changes and updates

Date	Summary	Links to resources and communications
4 September 2025	South Australian Class 3 Truck and Dog (up to 23m) Mass and Dimension Exemption Notice 2025 (No.1) commenced. No substantive changes made to access, conditions or eligible vehicles.	C2025G00485
20 September 2023	Road conditions and speed restrictions added for District Council of Ceduna in Conditions under Specific council conditions for commodity routes.
4 September 2022	South Australian Class 3 Truck and Dog (up to 23m) Mass and Dimension Exemption Notice 2022 (No.1) commenced and replaces South Australia Class 3 23m Truck and Dog Trailer Mass and Dimension Exemption Notice 2020 (No.1).	C2022G00824