Wash. Admin. Code § 390-18-050
Statutory Authority: RCW 42.17A.110. 12-03-002, § 390-18-050, filed 1/4/12, effective 2/4/12. Statutory Authority: RCW 42.17.370 and 42.17.562. 06-11-132, § 390-18-050, filed 5/23/06, effective 6/23/06. Statutory Authority: RCW 42.17.370(1). 99-12-068, § 390-18-050, filed 5/27/99, effective 6/27/99. Statutory Authority: RCW 42.17.370. 93-04-072, § 390-18-050, filed 1/29/93, effective 3/1/93.