California Code, Vehicle Code - VEH § 2573

(a) The commissioner may temporarily suspend a license to transport school pupils under contract with a school district, subject to a hearing conducted pursuant to Chapter 5 (commencing with Section 11500) of Part 1 of Division 3 of Title 2 of the Government Code, when, in the commissioner's opinion, the action is necessary to prevent an imminent and substantial danger to the public health.

(b) The commissioner may, following a hearing, suspend a license to transport school pupils under contract with a school district, for a period of at least 30 days but not more than 90 days, if the holder of the license knowingly permits the transportation of school pupils by a person who does not possess the appropriate driver's license and driver's certificate.

(c) The suspensions authorized pursuant to subdivisions (a) and (b) may, at the discretion of the commissioner, be enforced for all operations of a schoolbus contractor, or for the operations of the contractor in the school district in which the alleged violations occurred, or for the operations of the contractor in the contractor's terminal in which the alleged violations occurred.

(d) The commissioner shall provide notification of a suspension hearing to those school districts whose terminals would be affected by the suspension.