Wash. Rev. Code § 19.86.093
In a private action in which an unfair or deceptive act or practice is alleged under RCW 19.86.020, a claimant may establish that the act or practice is injurious to the public interest because it:
(3)
[ 2009 c 371 s 2.]
Application—2009 c 371: See note following RCW 19.86.090.