Wash. Admin. Code § 390-12-170
Statutory Authority: RCW 42.17.370. 93-19-034, § 390-12-170, filed 9/7/93, effective 10/8/93. Statutory Authority: RCW 42.17.370(1). 85-15-020 (Order 85-03), § 390-12-170, filed 7/9/85; Order 62, § 390-12-170, filed 8/26/75; Order 14, § 390-12-170, filed 7/31/73.