[Statutory Authority: RCW
28A.150.290. WSR 97-20-003 (Order 97-04), § 392-137-160, filed 9/17/97, effective 10/18/97. Statutory Authority: RCW
28A.22.230 [28A.225.230] and
34.05.220(4). WSR 90-19-068 (Order 26), § 392-137-160, filed 9/17/90, effective 10/18/90.]