Wash. Admin. Code § 220-310-070
Statutory Authority: RCW 77.12.047. 09-06-042 (Order 09-27), § 220-56-122, filed 2/25/09, effective 5/1/09. Statutory Authority: RCW 77.12.047 and 77.04.020. 07-16-056, § 220-56-122, filed 7/26/07, effective 8/26/07. Statutory Authority: RCW 77.12.047. 06-13-023 (Order 06-135), § 220-56-122, filed 6/13/06, effective 7/14/06; 06-09-021 (Order 06-67), § 220-56-122, filed 4/11/06, effective 5/12/06; 06-05-085 (Order 06-23), § 220-56-122, filed 2/14/06, effective 5/1/06.