Wash. Admin. Code § 173-27-290
Statutory Authority: RCW 90.58.120, 90.58.200, 90.58.060 and 43.21A.681. 11-05-064 (Order 10-07), § 173-27-290, filed 2/11/11, effective 3/14/11. Statutory Authority: RCW 90.58.140(3) and [90.58].200. 96-20-075 (Order 95-17), § 173-27-290, filed 9/30/96, effective 10/31/96.