Does the Heavy Vehicle National Law apply in Western Australia?
Short answer
No. The HVNL has not commenced in Western Australia, but interstate drivers must comply with applicable WA fatigue laws, and WA work and rest time can affect HVNL compliance when they return to a participating jurisdiction.
Plain English
Western Australia regulates heavy vehicles under its own laws. An interstate driver working in WA is therefore subject to applicable WA fatigue requirements rather than the HVNL as the governing law in WA. However, if the driver returns to an HVNL jurisdiction within seven days, section 245 of the HVNL requires work and rest time spent in WA to be counted for HVNL purposes.
What this means operationally
Operators crossing into WA should plan the journey to satisfy both systems. Qualifying commercial vehicle drivers must comply with WA fatigue, medical-fitness and record-keeping requirements while in WA. Drivers returning to an HVNL jurisdiction within seven days should continue completing their National Driver Work Diary so their WA work and rest time can be assessed on re-entry.
Who it applies to
WA-based heavy-vehicle operators and drivers, and interstate operators and drivers entering Western Australia.
Example
A Queensland-based fatigue-regulated driver spends four days working in WA before returning through South Australia. WA fatigue rules apply while the driver is in WA, and the WA work and rest time is counted when assessing HVNL compliance after re-entry.
Exceptions and traps
A stay of less than seven days is not an exemption from applicable WA fatigue law. The seven-day rule determines how time spent in a non-participating jurisdiction is treated when a driver returns to an HVNL jurisdiction. Whether WA Part 4.10 applies also depends on the driver and vehicle meeting its statutory definitions. A February 2026 South Australian Magistrates Court ruling (NHVR v Copson) confirmed section 245 only operates in one direction: work and rest time accrued in WA is counted once the driver returns to a participating jurisdiction, not while the driver is still in WA. The magistrate rejected an NHVR attempt to apply the section the other way around, and industry commentary has since called for the NTC to review the section’s drafting.
What changed
Clarified on 20 August 2026 that WA law governs fatigue while a driver is in WA, but work and rest time spent in WA can be counted under HVNL section 245 when the driver returns to a participating jurisdiction within seven days.
Previous rule
Earlier wording stated only that the HVNL had not commenced in WA and did not clearly explain the short interstate-trip fatigue position.
Legal foundation
Work Health and Safety (General) Regulations 2022 (WA) Part 4.10, regulations 184B–184G; Heavy Vehicle National Law sections 245 and 248
Sources & primary documents
- www.legislation.wa.gov.au/legislation/prod/filestore.nsf/FileURL/mrdoc_49397.htm/FILE/WorkHealthandSafetyGeneralRegulations2022-01-a0-00.html?OpenElement=
- www.legislation.qld.gov.au/view/whole/html/inforce/2026-08-01/act-2012-021
- www.nhvr.gov.au/safety-accreditation-compliance/fatigue-management/faqs
- www.worksafe.wa.gov.au/fatigue-management-commercial-vehicle-drivers
Frequently asked questions
Does NHVR regulate heavy vehicles inside Western Australia?
The HVNL has not commenced in Western Australia, which retains its own heavy-vehicle and fatigue framework.
Can the HVNL apply to a WA-registered truck?
Yes. A vehicle from WA is subject to applicable HVNL requirements when it operates in a participating HVNL jurisdiction.
Do HVNL fatigue requirements still matter during a short trip into WA?
WA law governs fatigue while the driver is working in Western Australia. However, if the driver returns to an HVNL jurisdiction within seven days, the WA work and rest time is counted when assessing HVNL compliance.
Is the seven-day rule an exemption from WA fatigue requirements?
No. The driver must comply with applicable WA fatigue law. The seven-day rule concerns how time spent in WA is treated when the driver returns to an HVNL jurisdiction.
Has section 245's operation ever been tested in court?
Yes. In February 2026 a South Australian Magistrates Court dismissed an NHVR prosecution that tried to treat WA driving time as though it had occurred in South Australia. The court held section 245 counts WA time only when the driver returns to a participating jurisdiction, not in advance.