Wash. Admin. Code § 220-33-060
Statutory Authority: RCW 77.12.047. 10-06-095 (Order 10-33), § 220-33-060, filed 3/2/10, effective 4/2/10; 03-05-062 (Order 03-26), § 220-33-060, filed 2/18/03, effective 3/21/03; 01-07-016 (Order 01-36), § 220-33-060, filed 3/13/01, effective 4/13/01. Statutory Authority: RCW 75.08.080. 95-23-020 (Order 95-166), § 220-33-060, filed 11/8/95, effective 12/9/95; 94-12-009 (Order 94-23), § 220-33-060, filed 5/19/94, effective 6/19/94; 88-18-066 (Order 88-86), § 220-33-060, filed 9/2/88.