RCW 46.37.672: Signal preemption device—Use, sale, purchase—Penalty.

(1) It is unlawful to: (a) Use a signal preemption device except as authorized in RCW 46.37.670 ; (b) Sell a signal preemption device to a person other than a person described in RCW 46.37.670 ; or (c) Purchase a signal preemption device for use other than a duty as described in RCW 46.37.670 . (2) A person who violates this section is guilty of a gross misdemeanor.