CA Veh Code § 22112 (2021)
2021 California Code|Vehicle Code - VEH|DIVISION 11 - RULES OF THE ROAD|CHAPTER 6 - Turning and Stopping and Turning Signals|Section 22112.

22112.  (a) On approach to a schoolbus stop where pupils are loading or unloading from a schoolbus, the schoolbus driver shall activate an approved amber warning light system, if the schoolbus is so equipped, beginning 200 feet before the schoolbus stop. The schoolbus driver shall deactivate the amber warning light system after reaching the schoolbus stop. The schoolbus driver shall operate the flashing red light signal system and stop signal arm, as required on the schoolbus, at all times when the schoolbus is stopped for the purpose of loading or unloading pupils. The flashing red light signal system, amber warning lights system, and stop signal arm shall not be operated at any place where traffic is controlled by a traffic officer or at any location identified in subdivision (e) of this section. The schoolbus flashing red light signal system, amber warning lights system, and stop signal arm shall not be operated at any other time.(b) The schoolbus driver shall stop to load or unload pupils only at a schoolbus stop designated for pupils by the school district superintendent or the head or principal of a private school, or authorized by any of those individuals for school activity trips.(c) When a schoolbus is stopped on a highway or private road for the purpose of loading or unloading pupils, at a location where traffic is not controlled by a traffic officer, the driver shall, before opening the door, ensure that the flashing red light signal system and stop signal arm are activated, and that it is safe to enter or exit the schoolbus.(d) When a schoolbus is stopped on a highway or private road for the purpose of loading or unloading pupils, at a location where traffic is not controlled by a traffic officer or official traffic control signal, the schoolbus driver shall do all of the following:(1) Escort all pupils in prekindergarten, kindergarten, or any of grades 1 to 8, inclusive, who need to cross the highway or private road upon which the schoolbus is stopped. The driver shall use an approved hand-held “STOP” sign while escorting all pupils.(2) Require all pupils who need to cross the highway or private road upon which the schoolbus is stopped to walk in front of the bus as they cross.(3) Ensure that all pupils who need to cross the highway or private road upon which the schoolbus is stopped have crossed safely, and that all other pupils and pedestrians are a safe distance from the schoolbus before setting the schoolbus in motion.(e) Except at a location where pupils are loading or unloading from a schoolbus and must cross a highway or private road upon which the schoolbus is stopped, the schoolbus driver may not activate the amber warning light system, the flashing red light signal system and stop signal arm at any of the following locations:(1) Schoolbus loading zones on or adjacent to school grounds or during an activity trip, if the schoolbus is lawfully stopped or parked.(2) Where the schoolbus is disabled due to mechanical breakdown. The driver of a relief bus that arrives at the scene to transport pupils from the disabled schoolbus shall not activate the amber warning light system, the flashing red light system, and stop signal arm.(3) Where a pupil requires physical assistance from the driver or authorized attendant to board or leave the schoolbus and providing the assistance extends the length of time the schoolbus is stopped beyond the time required to load or unload a pupil that does not require physical assistance.(4) Where the roadway surface on which the bus is stopped is partially or completely covered by snow or ice and requiring traffic to stop would pose a safety hazard as determined by the schoolbus motor carrier.(5) On a state highway with a posted speed limit of 55 miles per hour or higher where the schoolbus is completely off the main traveled portion of the highway.(6) Any location determined by a school district or a private school, with the approval of the Department of the California Highway Patrol, to present a traffic or safety hazard.(f) Notwithstanding subdivisions (a) to (d), inclusive, the Department of the California Highway Patrol may require the activation of an approved flashing amber warning light system, if the schoolbus is so equipped, or the flashing red light signal system and stop signal arm, as required on the schoolbus, at any location where the department determines that the activation is necessary for the safety of school pupils loading or unloading from a schoolbus.(Amended by Stats. 2012, Ch. 769, Sec. 35. (AB 2679) Effective January 1, 2013.)