Wash. Admin. Code § 220-12-090
Statutory Authority: RCW 77.04.012 and 77.12.047. 12-05-082 (Order 12-17), § 220-12-090, filed 2/16/12, effective 3/18/12. Statutory Authority: RCW 77.12.047. 10-07-105 (Order 10-64), § 220-12-090, filed 3/19/10, effective 5/1/10; 04-01-096 (Order 03-312), § 220-12-090, filed 12/16/03, effective 1/16/04; 02-19-007 (Order 02-223), § 220-12-090, filed 9/5/02, effective 10/6/02.