The National Class 3 Euro VI Vehicle (wide-spaced twinsteer) Mass Exemption Notice 2025 (No.1) has been revoked. Operators who kept that notice as the basis for their vehicle’s mass entitlement need to check the current rules.
The cancellation of the old instrument should not be read as a blanket ban on Euro VI twin-steer trucks or a blanket withdrawal of their mass allowance.
Which date matters?
The Commonwealth gazette revocation, C2026G00539, says the instrument takes effect on 14 August 2026 and the cancellation comes into force 28 days after that day.
The NHVR’s notice register states that cancellation came into force on 12 September 2026. Its table also displays 2 October 2026 in the old notice’s expiry column. Those entries describe different events: operators should not treat the displayed expiry date as confirmation that the exemption remained available until October.
What the current mass guide says
The NHVR’s current General Mass Limits page includes the changes that commenced on 1 August 2026. It lists an 11.5-tonne limit for an eligible Euro VI twin-steer axle group fitted with tyres at least 275 millimetres wide.
Eligibility includes an engine meeting ADR 80/04 or later, load-sharing suspension and appropriately rated tyres, axles and suspension. The current consolidated Heavy Vehicle (Mass, Dimension and Loading) National Regulation excludes buses from its Euro VI twin-steer definition. Section 5G now defines a twin-steer group as two axles with single tyres, fitted to a motor vehicle and connected to the same steering mechanism, with axle centres from 1 to 2.5 metres apart. That wider definition explains why operators should check the reformed rules rather than rely on the revoked exemption. Read the consolidated regulation: section 5G, the Euro VI twin-steer definition and Schedule 1’s mass table.
A Euro VI badge alone does not establish the entitlement. Manufacturer ratings and the other applicable vehicle, combination and access conditions still matter.
Check the paperwork against the actual truck
The old notice addressed qualifying vehicles with the two steerable axles up to 2.5 metres apart. Its cancellation means the old document cannot simply be retained as a current exemption.
For a wide-spaced vehicle, confirm the current legal treatment of that axle spacing as well as the mass limit. Check any applicable notice, permit or PBS approval and the conditions for the route being used.
This update concerns the HVNL framework in participating jurisdictions. Western Australia and the Northern Territory have their own heavy-vehicle rules.