School Bus Endorsement Requirements and Vehicle Classification
What the endorsement covers
A California school bus endorsement is a restricted certificate added to a commercial license, and it authorizes driving a bus designed to carry more than 10 passengers that is used to transport pupils to or from school or school-related activities. Candidates must hold a valid commercial license with a passenger endorsement, pass the school bus knowledge test, pass a skills test in a school bus of the proper class, and satisfy medical, driving-record, and background requirements including fingerprint clearance through the Department of Justice. First aid knowledge is also tested.
Classifying the vehicle
California follows federal weight and capacity classes. Class A covers combinations over 26,000 pounds gross combination weight rating with a towed unit over 10,000 pounds. Class B covers a single vehicle over 26,000 pounds. Class C covers a single vehicle of 26,000 pounds or less that either carries 16 or more passengers (including the driver) or is placarded for hazardous materials. A small school bus carrying 15 or fewer passengers including the driver can fall in Class C or even a non-commercial class depending on weight and configuration; a conventional full-size school bus usually requires Class B.
Traps to expect
Questions often confuse the passenger count threshold with the weight threshold, or assume every school bus requires Class A. Others blur the distinction between the passenger endorsement and the school bus certificate, or claim the certificate is transferable to another driver. Watch for items about what to do when the certificate is suspended, and about whether a school bus may be driven for non-school purposes.
Rule of thumb
If the bus is built for more than 10 passengers and is used for pupil transportation, the school bus certificate is required; then use weight and capacity to pick the class.