California law strictly limits the use of emergency vehicle lights to active emergencies, pursuits, or fire responses. Under Vehicle Code § 21055, lights and sirens may only be used when responding to specific urgent situations, not for ...See moreCalifornia law strictly limits the use of emergency vehicle lights to active emergencies, pursuits, or fire responses. Under Vehicle Code § 21055, lights and sirens may only be used when responding to specific urgent situations, not for patrol or display. Sections § 25250 and § 25269 further prohibit flashing red lights unless these strict conditions are met. Unauthorized use is not only unlawful-it may constitute impersonation or abuse of authority under Penal Code § 538d. This framework ensures emergency lights are used only when public safety is genuinely at risk. Written by
Chris Yarbra
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