When do the heavy-vehicle fatigue rules apply?
Short answer
The HVNL work, rest and fatigue-record rules apply when a person drives a fatigue-regulated heavy vehicle: generally a vehicle or combination above 12 tonnes, or a qualifying heavy bus.
Plain English
A fatigue-regulated heavy vehicle is generally a vehicle with a GVM above 12 tonnes, a combination whose applicable total GVM or GCM is above 12 tonnes, or a heavy bus above 4.5 tonnes built or fitted to carry more than 12 adults including the driver. The legislation contains exclusions and special bus provisions, so the exact vehicle and operation must be checked.
For a covered driver, work is broader than time behind the wheel. It includes driving, loading and unloading, inspecting, servicing, repairing, cleaning, refuelling and other tasks connected with operating the vehicle. Rest is time that is not work. Separately, every heavy-vehicle driver has a duty not to drive on a road while impaired by fatigue or otherwise unfit to drive.
What this means operationally
Classify the vehicle and combination before allocating the job, identify the driver’s work and rest hours option, and count every driving and non-driving work task. Rosters, customer windows and depot processes must allow the required rest and must not rely on a driver merely staying inside a nominal shift length.
Who it applies to
Drivers of fatigue-regulated heavy vehicles and the operators, employers, prime contractors, schedulers, consignors, consignees, loaders and other Chain of Responsibility parties that influence their work.
Example
A driver of a 14-tonne rigid truck is covered even on a day with only short delivery legs, and the time spent loading, checking the load and refuelling counts as work as well as the driving time.
Exceptions and traps
Some vehicles and operations are excluded or covered by specific provisions, and qualifying buses have additional options. Western Australia and the Northern Territory use their own domestic fatigue laws, although corresponding-law and interstate record obligations can still matter when a driver enters an HVNL jurisdiction.
What changed
From 1 August 2026, the HVNL expressly separates the duty applying to every heavy-vehicle driver from the detailed work and rest requirements that apply to fatigue-regulated heavy vehicles, and it uses the current alternative compliance hours framework.
Previous rule
Before 1 August 2026, the fatigue chapter used the former Basic Fatigue Management and Advanced Fatigue Management terminology and framed the driver fatigue offence more narrowly.
Legal foundation
Heavy Vehicle National Law Ch 6, including ss 220-221, 228 and 243-249; Heavy Vehicle (Fatigue Management) National Regulation 2013
Sources & primary documents
- www.legislation.qld.gov.au/view/whole/html/inforce/current/act-2012-hvnlq
- www.legislation.qld.gov.au/view/whole/html/inforce/current/sl-2013-0078
- www.nhvr.gov.au/safety-accreditation-compliance/fatigue-management
- www.nhvr.gov.au/safety-accreditation-compliance/fatigue-management/counting-time/definition-of-work-and-work-time
WWTG verification: Queensland legislation, NHVR
Frequently asked questions
What is a fatigue-regulated heavy vehicle?
Generally, it is a vehicle or applicable combination above 12 tonnes, or a qualifying heavy bus, subject to the statutory details and exclusions.
Does loading count as work?
Yes. Loading, unloading, inspections, repairs, cleaning, refuelling and related operating tasks can all be work time.
Do fatigue rules apply only to long-distance trips?
No. Vehicle classification and the work being performed matter; short trips do not remove the fatigue duty or work-time counting.
Does the unfit-to-drive duty apply only above 12 tonnes?
No. The current duty applies to a driver of any heavy vehicle, generally above 4.5 tonnes, while driving on a road.
Do these rules apply in WA and the NT?
The HVNL does not govern domestic operation there; each has separate laws, while interstate and corresponding-law obligations may still be relevant.