The legal minimum age is 18 to drive a bus within the state. Drivers must be at least 21 to drive a bus across state lines. Drivers over 70 must pass an annual exam. For shuttle vans carrying fewer than ten passengers, a California Class C standard driver's license is usually sufficient. Bus Drivers must also be courteous because they deal with passengers.
Employers require a good driving record.
Some employers require drug testing prior to hiring, and may test employees at random.