Wash. Admin. Code § 391-55-200
(1) If a dispute involving a bargaining unit eligible for interest arbitration under RCW 41.56.028, 41.56.029, 41.56.030 (14), 41.56.475, 41.56.492, 41.56.496, 41.56.510, 41.56.516, 41.80.200, 41.80.310, 47.64.300, or 74.39A.270 (2)(c) has not been settled after a reasonable period of mediation, and the mediator is of the opinion that further efforts will not result in an agreement, the following procedure will be implemented:
(2) The mediator shall review the lists of issues submitted by the parties.
(3) If the dispute remains unresolved after the completion of the procedures in subsections (1) and (2) of this section, interest arbitration must be initiated, as follows:
[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, § 391-55-200, filed 11/16/22, effective 1/1/23. Statutory Authority: RCW 41.56.090, 41.58.050, 41.58.065, 47.64.300, and 74.39A.270. WSR 12-05-066, § 391-55-200, filed 2/15/12, effective 3/17/12. Statutory Authority: RCW 41.56.090, 41.58.050, and 74.39A.270. WSR 10-20-172, § 391-55-200, filed 10/6/10, effective 11/6/10. Statutory Authority: RCW 28B.52.080, 41.56.090, 41.59.110, 41.58.050, 41.06.340, 41.76.060, 41.56.450, [41.56].475, [41.56].492 and 74.39A.270. WSR 03-03-064, § 391-55-200, filed 1/14/03, effective 2/14/03. Statutory Authority: RCW 28B.52.080, 41.56.090, 41.59.110, 41.58.050, 41.56.450, 41.56.475 and 41.56.492. WSR 99-14-060, § 391-55-200, filed 7/1/99, effective 8/1/99. Statutory Authority: RCW 28B.52.080, 41.56.090, 41.59.110, 41.58.050, 41.56.450 and [41.56].492. WSR 96-07-105, § 391-55-200, filed 3/20/96, effective 4/20/96. Statutory Authority: RCW 28B.52.080, 41.56.040, 41.58.050, 41.59.110 and 47.64.040. WSR 80-14-049 (Order 80-8), § 391-55-200, filed 9/30/80, effective 11/1/80.]