Wash. Admin. Code § 296-20-075
Statutory Authority: RCW 51.36.010, 51.04.020, and 51.04.030. 12-06-066, § 296-20-075, filed 3/6/12, effective 4/6/12. Statutory Authority: RCW 51.04.020(4) and 51.04.030. 90-04-057, § 296-20-075, filed 2/2/90, effective 3/5/90; 87-24-050 (Order 87-23), § 296-20-075, filed 11/30/87, effective 1/1/88; 86-20-074 (Order 86-36), § 296-20-075, filed 10/1/86, effective 11/1/86; 86-06-032 (Order 86-19), § 296-20-075, filed 2/28/86, effective 4/1/86. Statutory Authority: RCW 51.04.020(4), 51.04.030, and 51.16.120(3). 81-01-100 (Order 80-29), § 296-20-075, filed 12/23/80, effective 3/1/81; Order 71-6, § 296-20-075, filed 6/1/71; Order 70-12, § 296-20-075, filed 12/1/70, effective 1/1/71; Order 68-7, § 296-20-075, filed 11/27/68, effective 1/1/69.