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VDAM: What you need to know

On 1 February 2017, the rules governing heavy vehicle size, weight and operation limits changed.

While most of the changes are small, they may have an impact on how you operate, inspect, manufacture or permit heavy vehicles.

On this page you’ll find a link to the revised rule, as well as links to other key pieces of information. Supporting documents such as factsheets are now updated throughout our website

VDAM Rule 2016

Read the revised Rule - in force from 1 February 2017. 

The revised rule includes the changes listed below:

  • Small increases to height and width limits for standard vehicles (allowing access to a greater choice of vehicles)
  • Changes to gross mass limits for some 7 axle (45 tonnes) and 8 axle (46 tonnes) combination vehicles (initially limited access based on state highway network; from 1 December 2017 available for general access) 
  • Small changes to axle mass limits (e.g. introducing “mega” tyres)
  • Allowing specialist vehicles (passenger service vehicles, rubbish trucks with compactors, concrete trucks and ground spreader trucks) to exceed general access axle limits under permit.
  • Specific axle mass limit change for public transport service buses
  • Clarification of requirements for overdimension vehicles and loads

Methodologies are now available on our website.

Questions and answers [PDF, 186 KB] regarding the 2016 Rule are also available.

View a summary of submissions on the yellow draft of the rule.

In addition, there is a reduction in weighing tolerances – now consolidated in the Land Transport (Offences and Penalties) Amendment Regulations:

Note: These regulations are also in force from 1 February 2017. 

Summary guides

Below are four summary guides that detail key changes for different parts of the heavy vehicle industry:

Specialist vehicles – defined as passenger service vehicles, concrete mixers, rubbish truck with compactor and ground spreader trucks 

You can find out more about specialist vehicles in the new factsheet 13h.

You can also find information on specialist vehicle permits including permit eligibility criteria and how to apply for a permit.

45/46 tonne general access changes

Read more on how the new gross mass limits are being phased in, including a link to a new 45/46 tonne route map.

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