Signal preemption device — Accident — Property damage or less than substantial bodily harm — Penalty.

RCW 46.37.673
in effect
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(1) When an accident that results only in injury to property or injury to a person that does not arise to substantial bodily harm as defined in RCW 9A.04.110 occurs as a proximate result of the operation of a signal preemption device which was not authorized in RCW 46.37.670 , the driver is guilty of negligently causing an accident by use of a signal preemption device. (2) Negligently causing an accident by use of a signal preemption device is a class C felony punishable under chapter 9A.20 RCW. (1) When an accident that results only in injury to property or injury to a person that does not arise to substantial bodily harm as defined in RCW 9A.04.110 occurs as a proximate result of the operation of a signal preemption device which was not authorized in RCW 46.37.670 , the driver is guilty of negligently causing an accident by use of a signal preemption device. (2) Negligently causing an accident by use of a signal preemption device is a class C felony punishable under chapter 9A.20 RCW.
Source: WA Statutes (Official Site)URL: https://app.leg.wa.gov/RCW/default.aspx?cite=46.37&full=trueFetched: 6/29/2026

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