The Heavy Vehicle National Law (HVNL) sets out strict regulations regarding how heavy vehicle drivers must manage their work and rest time. These regulations are crucial for ensuring road safety and preventing fatigue-related accidents. 

Let’s delve into the key aspects of these rules and how they impact heavy vehicle drivers. This article was updated in August 2026 to reflect the amended Heavy Vehicle National Law, which commenced on 1 August 2026.

What is Work Time?

Work time encompasses everything and anything to do with the operation of a heavy vehicle. This includes not only driving but also other activities that make driving possible. These activities can include:

• Loading and unloading cargo
• Inspecting and maintaining the vehicle
• Completing paperwork related to the trip
• Any other duties that contribute to the driving task

The key thing to recognise is that work hours for truck drivers in Australia include all the time spent performing work-related activities. Understanding this important distinction helps drivers stay compliant with the law and to manage their schedules more effectively.

The Importance of Rest Time

Rest time is any period that is not classified as work time. It’s when drivers are taking a well-earned rest from their work and can relax, sleep, or grab a bite to eat. Rest time requirements for truck drivers are crucial because they allow drivers to recover from the demands of their role, ensuring they are alert and ready to operate their vehicles safely.

• Rest is by far the best way for drivers to mitigate against the risk of being involved in a fatigue-related incident.
• The HVNL specifies that rest time must be taken away from the vehicle or in a sleeper berth that meets certain safety standards.

For drivers, safeguarding the safety of others is as much about what they do when they’re not driving as what they do when they are. 

Work and Rest Time: Limits Under the HVNL

The HVNL specifies different work and rest limits depending on the type of fatigue management system a driver is operating under. These restrictions aim to guarantee that drivers receive sufficient rest to remain alert and safe while driving.

 Let’s explore the three main categories:

1. Standard Hours

Under standard hours, solo drivers are permitted to work up to 12 hours in a 24-hour period. The rules are strict to ensure drivers have adequate rest:

• Drivers must take regular breaks, including at least seven continuous hours of stationary rest within a 24-hour period.
• These breaks can be broken into shorter rest periods, but the total rest time must comply with the regulations.

This system is the baseline for drivers, ensuring they have sufficient time to rest and recover before their next shift, promoting safety and reducing fatigue.

2. Alternative Compliance Hours (ACH)

From 1 August 2026, the amended HVNL began replacing the old accreditation-based fatigue modules with Alternative Compliance Hours under the new Heavy Vehicle Accreditation scheme:

• Operators holding Alternative Compliance Accreditation for Fatigue can select work and rest arrangements within approved outer limits.
• Templated Tables of Hours cover most of the arrangements previously available under BFM and common AFM setups, and custom tables can be approved on assessment.

The intent is the same as the old system: extra flexibility in exchange for demonstrated fatigue management, with driver safety remaining the priority.

3. BFM and AFM (legacy accreditation)

Basic Fatigue Management allowed additional work hours under an accredited fatigue management plan, and Advanced Fatigue Management offered further flexibility under an NHVR-approved system. These modules are being phased out, but existing accreditation remains valid until it expires:

• Drivers can work up to 14 hours in a 24-hour period.
• Drivers and operators with current BFM or AFM accreditation can keep operating under their existing arrangements until the accreditation expires, then transition to the new Alternative Compliance arrangements on renewal.

Whilst additional hours can be worked, driver safety remains of the utmost importance. Operators must demonstrate that they have adequate measures in place to manage driver fatigue, ensuring that longer working hours don’t jeopardise safety.

Whatever arrangement applies, operators must demonstrate that they have adequate measures in place to manage driver fatigue, ensuring that longer working hours never jeopardise safety.

Work and Rest Time: Counting Periods and Time Zones

Accurate tracking of work and rest periods is essential for compliance with the HVNL. Here’s how the regulations manage counting periods and time zones:

• Work periods of less than 24 hours are counted from the end of any rest period.
• Periods of 24 hours or more are counted from the end of a major rest break.
• Both work and rest times must be recorded in 15-minute intervals based on the time zone of the driver’s base location.

These standards ensure consistent and accurate tracking of work and rest times, helping to remove ambiguity and ensure adherence to compliance requirements.

The Role of Technology in Managing Work and Rest Times

Given the inherent complexities involved in managing fatigue for heavy vehicle operators, technology can play a pivotal role. Here are some of the key tools that can help with both your planning and tracking.

• Electronic Work Diaries (EWDs): These tools help drivers record their work and rest periods accurately, reducing the risk of any compliance violations.
• Telematics Systems: Many operators use telematics to monitor driver activity in real-time, ensuring adherence to work and rest limits.

These technologies have been specifically designed to make the lives of drivers easier, helping them manage their time more effectively while reducing their administrative burdens.

Driver Training and Education

Driver training and education are vital components in ensuring compliance with the Heavy Vehicle National Law (HVNL) and promoting road safety. Regular training sessions are a great way to keep the requirements at the forefront of the driver’s minds, helping them understand fatigue management plans and how to balance their schedules effectively. 

Educational programs also emphasise the importance of self-awareness, meaning that they must recognise the signs of fatigue before they become a hazard. A shared recognition of the importance of constant driver training helps promote a culture of safety within the industry. Through proper training, drivers and operators can work together to maintain high safety standards and protect everyone on the road.

Conclusion – The Importance of Understanding Work and Rest Time Requirements

Adhering to work and rest time regulations under the HVNL is essential for the safety of drivers and other road users. By following these guidelines, drivers can stave off any fatigue, reducing the risk of accidents and ensuring the roads are safer for everybody. 

For drivers and operators alike, staying updated on Heavy Vehicle National Law (HVNL) requirements and using available tools to monitor compliance can significantly enhance road safety and operational efficiency. Whether you’re operating under standard hours, Alternative Compliance Hours, or legacy BFM or AFM accreditation, knowing both your responsibilities and your limits is the key to success. 

By continuously monitoring and re-evaluating these regulations, the heavy vehicle industry can continue to improve safety standards and protect the well-being of all road users.