Commercial Motor Vehicle Safety ProgramEndorsements
Section § 15275
If you want to drive a commercial vehicle, you need to have the right type of commercial driver's license and any necessary endorsements, unless you're exempt. To get an endorsement, you have to pass tests and meet certain federal standards.
If you're seeking an endorsement for transporting hazardous materials, you need to meet additional federal requirements. The Department of Motor Vehicles can deny or take away your endorsement if you don't meet these qualifications.
If your hazardous materials endorsement is denied because you're considered a security threat, and you're later cleared by federal authorities, the DMV must give your endorsement back in line with federal rules.
Section § 15275.1
This law states that to drive a school bus, a person generally needs a valid commercial driver’s license with a passenger endorsement and a schoolbus driver’s certificate. However, if someone is a mechanic or a trainee, they can drive a school bus without the certificate only if no students are on board.
Section § 15278
To drive certain types of commercial vehicles in California, you need an official endorsement from the department. This applies to driving a double trailer, passenger transport vehicles like buses or farm labor vehicles, school buses, tank vehicles, and vehicles carrying hazardous materials that need placards. However, if you're in an emergency and a peace officer directs you, you don't need this endorsement then. Some agricultural vehicles and those not requiring a driver's license are exempt too.