Wash. Admin. Code § 246-110-020
Statutory Authority: RCW 43.20.050. WSR 92-02-019 (Order 225B), § 246-110-020, filed 12/23/91, effective 1/23/92; WSR 91-02-051 (Order 124B), recodified as § 246-110-020, filed 12/27/90, effective 1/31/91; WSR 90-21-056 (Order 095), § 248-101-221, filed 10/15/90, effective 10/15/90.