Driver & Vehicle Safety 

DOT regulations contain operating rules applicable to every motor carrier and employee responsible for management, maintenance, operation, or driving.

General Requirements for Driving Commercial Motor Vehicles

Ill or Fatigued Operators

DOT regulations specify that no driver may operate a commercial motor vehicle, and no motor carrier may 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 or her to begin or continue to operate the commercial motor vehicle.

However, in a case of grave emergency where the hazard to occupants of the commercial motor vehicle or other users of the highway would be increased by complying with this rule, the driver may continue to operate the commercial motor vehicle to the nearest place at which that hazard is removed.

Speed Limits