The Federal Motor Carrier Safety Regulations limit the number of licenses that a commercial vehicle operator can hold to how many?

A commercial vehicle operator is required by the Federal Motor Carrier Safety Regulations to hold only one valid driver's license. This regulation is in place to ensure accountability and safety on the roads, as it simplifies the identification of the driver and maintains a clear record of their driving history. Holding multiple licenses can lead to confusion and potential misuse, such as evading penalties or fines associated with violations on one license by using another. This regulation is crucial for maintaining safe and responsible driving practices in the trucking industry.