The NHVR is updating the Performance-Based Standards (PBS) Directional Stability Under Braking (DSUB) standard to modernise braking requirements and improve safety outcomes.
The revised standard focuses on the use of advanced braking and stability technologies, and will introduce several assurance measures to ensure these systems are powered, operational and fault-free.
Under the updated DSUB standard, trailers will need to be fitted with Trailer Electronic Braking Systems with rollover control compliant to ADR 38/05 or later.
Road trains will be required to provide a 24-volt electrical supply to trailer braking systems, and PBS combinations will need to have devices fitted which confirm braking systems on all trailing units are connected, powered on and provide fault statuses.
The standard will come into effect 1 July 2026 and can be viewed here.
The National Bulk Tanker Association (NBTA) is welcoming the updated standard as a win for the transport industry.
“This is a welcome and practical reform that removes Load Proportioning Valves (LPVs) as a means of compliance,” the NBTA said.
“In their place, the standard will require the fitment of an advanced braking system such as ABS, EBS or TEBS.”
The NBTA filed a submission to the NHVR for the standard which was informed by its members’ on-road TEBS experience.
That practical evidence then contributed to the final policy outcome.
“The NBTA supported the broader rollout of EBS,” the NBTA said.
“At the same time, we also sought greater clarity regarding the purpose of mandatory TEBS status indicators – whether intended for driver awareness, workshop diagnostics or on-road safety – noting that existing in-cab alerts often provide more effective real-time safety outcomes.
“The NBTA will continue working with the NHVR to ensure implementation supports both safety outcomes and operational practicality.”
In other news, JOST Australia has appointed Adrian Rocks as State Sales Manager of Victoria and Tasmania.
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