Wash. Admin. Code § 220-354-070
Statutory Authority: RCW 77.04.020, 77.12.045, and 77.12.047. 10-12-061 (Order 09-108), § 220-36-025, filed 5/27/10, effective 6/27/10. Statutory Authority: RCW 75.08.080. 86-15-016 (Order 86-55), § 220-36-025, filed 7/10/86; 83-10-015 (Order 83-30), § 220-36-025, filed 4/26/83; 78-07-067 (Order 78-45), § 220-36-025, filed 6/30/78; Order 77-14, § 220-36-025, filed 4/15/77; Order 1133, § 220-36-025, filed 7/19/74.