What does 49 CFR 392.3 (Ill or fatigued operator) require?
Generated guidance. Confirm the source and its applicability before you act. How we check sources.
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
- Monitor driver health and fatigue levels
- Ensure drivers take regular breaks and get enough rest
- Implement policies to prevent drivers from operating vehicles when impaired
- Train drivers on the risks of fatigue and illness while driving
- Review and enforce these policies regularly to maintain a safe driving environment
Ask X3