Wash. Admin. Code § 391-25-090
(2) If an employer disputes the majority status of the incumbent exclusive bargaining representative of its employees, it may obtain a determination of the question concerning representation by filing a petition under WAC 391-25-070.
[Statutory Authority: RCW 28B.52.080, 41.56.090, 41.58.050, 41.59.110, 41.76.060, 41.80.080, 47.64.135, and 49.39.060. WSR 22-23-101, § 391-25-090, filed 11/16/22, effective 1/1/23. Statutory Authority: RCW 28B.52.080, 41.56.090, 41.59.110, 41.58.050, 28B.52.030, 34.05.413, 41.56.050, 41.56.060, 41.56.070, 41.59.070 and 41.59.080. WSR 01-14-009, § 391-25-090, filed 6/22/01, effective 8/1/01. Statutory Authority: RCW 28B.52.080, 41.56.090, 41.59.110, 41.58.050, 28B.52.030, 34.05.413, 41.56.060, 41.56.070, 41.59.070 and 41.59.080. WSR 00-14-048, § 391-25-090, filed 6/30/00, effective 8/1/00; WSR 98-14-112, § 391-25-090, filed 7/1/98, effective 8/1/98; WSR 96-07-105, § 391-25-090, filed 3/20/96, effective 4/20/96. Statutory Authority: RCW 41.58.050, 28B.52.080, 41.56.090, 41.59.110 and 41.56.040. WSR 90-06-072, § 391-25-090, filed 3/7/90, effective 4/7/90. Statutory Authority: RCW 28B.52.080, 41.58.050, 41.56.090 and 41.59.110. WSR 88-12-054 (Order 88-02), § 391-25-090, filed 5/31/88. Statutory Authority: RCW 28B.52.080, 41.56.040, 41.58.050, 41.59.110 and 47.64.040. WSR 80-14-046 (Order 80-5), § 391-25-090, filed 9/30/80, effective 11/1/80.]