Wash. Admin. Code § 220-310-170
[Statutory Authority: RCW 77.04.012, 77.04.013, 77.04.020, 77.04.055, and 77.12.047. WSR 17-05-112 (Order 17-04), recodified as § 220-310-170, filed 2/15/17, effective 3/18/17. Statutory Authority: RCW 77.12.047. WSR 01-06-036 (Order 01-24), § 220-56-145, filed 3/5/01, effective 5/1/01. Statutory Authority: RCW 75.08.080, 77.12.040. WSR 00-08-038 (Order 00-29), § 220-56-145, filed 3/29/00, effective 5/1/00; WSR 99-08-029 (Order 99-13), § 220-56-145, filed 3/30/99, effective 5/1/99; WSR 98-06-031, § 220-56-145, filed 2/26/98, effective 5/1/98. Statutory Authority: RCW 75.08.080. WSR 83-07-043 (Order 83-16), § 220-56-145, filed 3/17/83; WSR 82-13-040 (Order 82-61), § 220-56-145, filed 6/9/82; WSR 80-03-064 (Order 80-12), § 220-56-145, filed 2/27/80, effective 4/1/80.]