Wash. Admin. Code § 220-16-590
Statutory Authority: RCW 77.12.047. 00-17-106 (Order 00-149), § 220-16-590, filed 8/16/00, effective 9/16/00. Statutory Authority: RCW 75.08.080, 77.12.040. 00-08-038 (Order 00-29), § 220-16-590, filed 3/29/00, effective 5/1/00; 98-06-031, § 220-16-590, filed 2/26/98, effective 5/1/98.