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What does 49 CFR 392.3 (Ill or fatigued operator) require?

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Short answer

No driver shall operate a commercial motor vehicle while their ability or alertness is impaired through fatigue, illness, or any other cause. A motor carrier shall not require or permit a driver to operate a commercial motor vehicle in such a condition.

The rule says

"No driver shall operate a commercial motor vehicle, and a motor carrier shall not require or permit a driver to operate a commercial motor vehicle, while the driver's ability or alertness is so impaired, or so likely to become impaired, through fatigue, illness, or any other cause, as to make it unsafe for him/her to begin or continue to operate the commercial motor vehicle." (49 CFR 392.3)

In plain English

This rule is about safety on the road. If a driver is too tired or sick to drive safely, they cannot operate a commercial vehicle. The motor carrier also cannot force a driver to work in such a condition. There's an exception for emergencies where stopping would increase the hazard, but generally, safety comes first. In practice, this means drivers and carriers must be aware of their physical condition and take steps to prevent fatigue and illness from impairing their ability to drive.

What to do

§ 49 CFR 392.3 · eCFR ↗Sources retrieved: 8 retrieved CFR sections · 3 X3 obligations

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