Wash. Rev. Code § 43.22.490
Any person who violates any of the provisions of RCW 43.22.450 through 43.22.490 or any rules or regulations adopted pursuant to RCW 43.22.450 through 43.22.490 is guilty of a misdemeanor, punishable by a fine not exceeding five hundred dollars or by imprisonment not exceeding thirty days, or by both such fine and imprisonment.
[ 1970 ex.s. c 44 s 9.]