Wash. Admin. Code § 220-33-020
Statutory Authority: RCW 77.12.047. 07-21-128 (Order 07-266), § 220-33-020, filed 10/23/07, effective 11/23/07; 00-17-117 (Order 00-146), § 220-33-020, filed 8/17/00, effective 9/17/00. Statutory Authority: RCW 75.08.080. 97-07-043 (Order 97-51), § 220-33-020, filed 3/14/97, effective 4/14/97; 88-18-066 (Order 88-86), § 220-33-020, filed 9/2/88.