Section 15275.1 Of Article 6. Endorsements From California Vehicle Code >> Division 6. >> Chapter 7. >> Article 6.
15275.1
. (a) Except as provided in subdivision (b), a schoolbus
endorsement is valid only when the operator possesses or qualifies
for a valid commercial driver's license with a passenger endorsement
and possesses a schoolbus driver's certificate issued pursuant to
Section 12517.
(b) A schoolbus endorsement is valid without a schoolbus driver's
certificate for an operator who is employed as a mechanic or a
schoolbus driver-trainee if the schoolbus endorsement is restricted
to operating a schoolbus when there is no pupil being transported.