Section 25257.5.

Cal. Vehicle Code - VEH § 25257.5.
in effect
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To warn other motorists or pedestrians on a roadway during a backing maneuver, the operator of a schoolbus may flash turn signal lamps if the front turn signal lamps at each side are flashed simultaneously and the rear signal lamps at each side are flashed simultaneously.
Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026

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