Fatigue, Sleep Apnoea and Fitness to Drive for Commercial Drivers

A hidden risk on the road

Fatigue is one of the leading causes of serious crashes involving commercial drivers, and one of the most common, and treatable, causes of fatigue is obstructive sleep apnoea. A driver with untreated sleep apnoea can have the same level of impairment as a driver over the legal alcohol limit, yet the condition often goes undiagnosed until a medical or an incident brings it to light.

What is obstructive sleep apnoea?

Obstructive sleep apnoea (OSA) is a condition where the airway repeatedly narrows or closes during sleep, causing brief awakenings and fragmented, poor-quality sleep. Sufferers often feel they slept a full night yet wake unrefreshed, and they are prone to severe daytime sleepiness, a dangerous state for anyone driving for a living.

Risk factors include obesity, a large neck circumference, snoring, age and certain facial structures, many of which are common in the commercial driving population.

What the medical standards require

Commercial drivers in Australia must meet fitness-to-drive standards set out by the National Transport Commission and assessed by clinicians against the Austroads standards. These standards specifically address sleep apnoea and require drivers with the condition to be assessed and effectively treated to maintain their licence. A standard commercial driver medical will screen for risk factors and, where indicated, refer for sleep study and specialist review.

Why proactive screening matters

The worst way to discover a driver has sleep apnoea is after a crash. Proactive screening as part of pre-employment and periodic driver medicals means the condition is identified and managed before it becomes a road incident. Treatment, commonly CPAP therapy, is highly effective and can return a driver to full fitness to drive.

Proactive management also means:

• Lower crash risk, treated drivers drive as safely as unaffected drivers.
• Licence continuity, managed correctly, a driver keeps working rather than losing their livelihood.
• Duty of care evidence, demonstrating you monitor and manage fatigue risk.
• Reduced liability, a known, untreated risk is far harder to defend than a managed one.

Building fatigue risk into your medical program

For any business operating commercial vehicles, fatigue and sleep health should be a planned part of the medical program, not an afterthought. This means screening at pre-employment, periodic review for higher-risk drivers, and a clear pathway for assessment and treatment when a risk is identified.

Work Plus Health delivers commercial driver medicals to the relevant standards across our 37 WA clinics and national affiliate network, with same-day access and consistent reporting, so you can be confident your drivers are fit to drive, and your business is managing fatigue risk properly.