Wash. Admin. Code § 390-12-250
Statutory Authority: RCW 42.17.370. 90-16-083, § 390-12-250, filed 7/31/90, effective 8/31/90. Statutory Authority: RCW 42.17.370(1). 85-15-020 (Order 85-03), § 390-12-250, filed 7/9/85; 81-18-043 (Order 81-03), § 390-12-250, filed 8/28/81.