What is a US DOT Number and do I Need one?
To help ensure the safety of large trucks on roadways, most commercial motor vehicles-including those used in agricultural operations for transporting livestock and produce-must have a U.S. Department of Transportation (US DOT) identification number, according to Federal Motor Carrier Safety Regulations. Federal regulations define a commercial motor vehicle as any self-propelled or towed vehicle with a gross vehicle weight rating, a gross combination weight rating, or a gross combination weight of 10,001 or more pounds. The regulations apply to all commercial motor vehicles traveling (intrastate) as well as between states (interstate).