[Statutory Authority: RCW
28A.150.290. WSR 02-15-150, § 392-120-001, filed 7/22/02, effective 8/22/02. Statutory Authority: 1990 c 33. WSR 90-16-002 (Order 18), § 392-120-001, filed 7/19/90, effective 8/19/90. Statutory Authority: RCW
28A.58.217. WSR 88-19-026 (Order 88-21), § 392-120-001, filed 9/12/88.]