Wash. Rev. Code § 41.56.150 : — PUBLIC EMPLOYMENT, CIVIL SERVICE, AND PENSIONSPUBLIC EMPLOYEES' COLLECTIVE BARGAINING — Unfair labor practices for bargaining representative enumerated TEXT PDF It shall be an unfair labor practice for a bargaining representative: (1) To interfere with, restrain, or coerce public employees in the exercise of their rights guaranteed by this chapter; (2) To induce the public employer to commit an unfair labor practice; (3) To discriminate against a public employee who has filed an unfair labor practice charge; (4) To refuse to engage in collective bargaining. RCW 41.56.150 1969 ex.s. c 215 § 2.