Wash. Admin. Code § 220-413-060
Statutory Authority: RCW 77.04.012, 77.04.013, 77.04.055, 77.12.045, and 77.12.047. 13-02-043 (Order 12-290), § 232-12-242, filed 12/21/12, effective 1/21/13. Statutory Authority: RCW 77.12.040. 93-04-074 (Order 593), § 232-12-242, filed 1/29/93, effective 3/1/93.