RCW 41.56.150
Unfair labor practices for bargaining representative enumerated.
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.
[ 1969 ex.s. c 215 § 2.]