Wash. Admin. Code § 308-420-020
Statutory Authority: RCW 19.105.530(1), 43.24.023. 03-03-054, § 308-420-020, filed 1/13/03, effective 2/13/03. Statutory Authority: RCW 19.105.130. 91-01-082, § 308-420-020, filed 12/17/90, effective 1/17/91. Formerly WAC 460-90A-015.