Commercial Vehicle

A commercial vehicle, according to the Federal Motor Carrier Safety Administration, is any vehicle which is "self-propelled or towed motor vehicle used on a highway in interstate commerce to transport passengers or property."

The vehicle must have a gross vehicle weight rating, or gross combination weight rating, or gross vehicle weight or gross combination weight, of 4,536 kg (10,001 pounds) or more. It also can include any commercial vehicle designed to carry eight passengers or more for compensation or to transport more than 15 passengers, including the driver, without compensation. Vehicles which are used to transport hazardous materials and require a federal placard are also considered a commercial vehicle.

In some state drivers with a commercial license can be arrested for DUI if they are driving a commercial vehicle with a BAC of 0.04% or greater, if they are driving a noncommercial vehicle with a BAC of 0.08% or greater, of if they refuse to submit to a BAC test.