What Is the NHVR Fatigue Law? A Guide for NSW Truck Drivers

If you drive a heavy vehicle in NSW, the NHVR fatigue law governs your work and rest hours. The National Heavy Vehicle Regulator (NHVR) enforces a framework that’s stricter and more nuanced than most drivers realise — and the chain of responsibility means your employer, scheduler and operator are also legally exposed if you breach it. For a comprehensive guide to operator obligations, see our guide to heavy vehicle operator fatigue rules NSW.

This guide explains the NHVR fatigue law in plain language for NSW truck drivers — what the rules say, what your obligations are, and what happens when things go wrong.

What Is the NHVR Fatigue Law?

The NHVR fatigue law is embedded in the Heavy Vehicle National Law (HVNL) — a national framework adopted by most Australian states and territories, including NSW. It replaced the patchwork of state-based fatigue regulations in 2014 and created consistent work/rest rules, enforcement powers and chain of responsibility obligations across the national freight network.

The NHVR publishes detailed guidance on fatigue rules at nhvr.gov.au. If you’re operating under Standard Hours, BFM or AFM, the NHVR is your primary regulator — though in NSW, Transport for NSW officers and NSW Police conduct enforcement on roads.

Who Is Covered by NHVR Fatigue Law?

The HVNL applies to drivers of heavy vehicles over 12 tonnes Gross Vehicle Mass (GVM) operating on public roads. This includes:

• Articulated semi-trailers and B-doubles
• Rigid trucks over 12t GVM
• Road trains
• Buses over 12t GVM

Light vehicles — including most vans and utes — are not subject to the HVNL, though WHS duties and general road rules still apply.

Standard Hours: The Default Rules

Under Standard Hours, every heavy vehicle driver must comply with these limits:

Timeframe	Maximum Work	Minimum Rest
Any 24-hour period	12 hours	7 hours continuous
Any 7-day period	72 hours	24 hours rest
Any 14-day period	144 hours	Two 24-hour rest periods

“Work” under the HVNL includes driving time AND all other duties related to the vehicle — loading, unloading, paperwork, waiting at depots. It’s not just drive time.

Basic Fatigue Management (BFM)

BFM provides more flexibility for operators running schedules that Standard Hours can’t accommodate. Under BFM, drivers can work slightly longer hours but must follow accredited fatigue management plans. Key points:

• Operator must be NHVR-accredited under BFM
• Drivers must complete approved BFM training
• Allows up to 14 hours work in some 24-hour periods
• Rest requirements are defined per the accredited schedule

Kells Safety Centre delivers BFM training for drivers through the Drivers Fatigue Management Course. For dispatchers and operations staff managing BFM schedules, the Schedulers Fatigue Management Course covers your specific legal obligations.

Chain of Responsibility: It’s Not Just the Driver

This is the part many operators and schedulers don’t fully understand. The HVNL’s chain of responsibility provisions create legal obligations for every person in the supply chain who has influence over a driver’s work hours:

• Drivers — must comply with work/rest limits and maintain accurate work diaries
• Schedulers — must not create schedules that cause or encourage fatigue breaches
• Operators/employers — must implement fatigue management systems and not pressure drivers to breach
• Consignors and consignees — must not set unrealistic delivery timeframes that cause fatigue risk

A consignee who demands a delivery time that requires the driver to breach their hours limit can be prosecuted under the HVNL. This is a significant change from older state-based frameworks and many businesses are still not fully aware of it.

Work Diary Obligations

Drivers operating under Standard Hours or BFM must keep a work diary. Entries must be made at the time — not reconstructed from memory later. Required information includes:

• Work start and end times
• Rest periods and their location
• Odometer readings
• Any changes to schedule

Falsifying a work diary is a serious offence. NHVR officers and NSW Police can inspect work diaries at any time during a roadside check.

Penalties for Fatigue Breaches

Penalties vary based on severity. The NHVR uses a risk-rating system — the further beyond the limit, the higher the penalty category:

• Minor risk — infringement notice (fine)
• Substantial risk — higher fine, possible prosecution
• Severe/critical risk — prosecution, licence action, operator demerits
• Immediate driver rest — vehicle detained until driver has rested

Key Takeaways

• NHVR fatigue law (HVNL) applies to all heavy vehicles over 12t GVM in NSW
• Standard Hours: max 12 hrs work per 24 hrs, min 7 hrs continuous rest
• BFM and AFM allow more flexibility but require NHVR accreditation and training
• Chain of responsibility — schedulers, operators and consignors are also legally liable
• Work diaries must be accurate, contemporaneous and produced on demand
• Kells Safety Centre (RTO 91528) delivers fatigue training for drivers and schedulers at Wetherill Park and Wollongong

Frequently Asked Questions

What does NHVR stand for?

NHVR stands for National Heavy Vehicle Regulator. It is the national body that administers the Heavy Vehicle National Law (HVNL) across participating Australian states and territories, including NSW. The NHVR manages fatigue regulation, vehicle standards, mass and dimension limits, and the accreditation of fatigue management schemes.

Does the NHVR fatigue law apply in NSW?

Yes. NSW is a participating jurisdiction under the HVNL. All heavy vehicle drivers operating on NSW roads must comply with NHVR fatigue rules. Enforcement is conducted by Transport for NSW authorised officers and NSW Police, who have the same powers as NHVR officers under the HVNL.

What counts as “work” under the NHVR fatigue law?

Work includes all time spent on duties related to the heavy vehicle — driving, loading, unloading, vehicle inspections, waiting at a depot for loading, and completing paperwork. It is not limited to drive time. This is a common misconception that leads to accidental fatigue breaches.

What is the difference between Standard Hours and BFM?

Standard Hours are the default work/rest limits that apply to all heavy vehicle drivers without any accreditation. Basic Fatigue Management (BFM) is an accredited option that allows more flexible schedules for operators whose work patterns don’t fit Standard Hours. BFM requires NHVR accreditation for the operator and approved training for drivers and schedulers.

Can I be prosecuted for a fatigue breach even if I didn’t feel tired?

Yes. The NHVR fatigue law is based on hours worked and rested — not on subjective assessments of how tired you feel. Exceeding the prescribed work hours is an offence regardless of whether you felt fatigued at the time. The law takes an objective, science-based approach to fatigue risk.

Where can I do NHVR fatigue training in NSW?

Kells Safety Centre (RTO 91528) delivers fatigue management training for drivers and schedulers at Wetherill Park (Western Sydney) and Wollongong/Dapto. Our courses cover NHVR obligations, work diary requirements, BFM rules and chain of responsibility. See our Drivers Fatigue Management Course and Schedulers Fatigue Management Course.