Work and rest requirements

In addition to the general duty to not drive a fatigue-regulated heavy vehicle on a road while fatigued, drivers must comply with certain maximum work and minimum rest limits. 

Parties in the supply chain have to take all reasonable steps to prevent the drivers from exceeding these limits. This is similar to occupational health and safety laws and means that drivers must be allowed to stop if they are at risk of exceeding the limits and make alternative arrangements.

The Heavy Vehicle National Law sets three work and rest options.

  • Standard hours
  • Basic Fatigue Management (BFM)
  • Advanced Fatigue Management (AFM)


Standard hours

Standard hours are the work and rest hours allowed in the HVNL. They are the maximum amount of work and minimum amount of rest possible that can be performed safely without additional safety countermeasures.