Wash. Admin. Code § 106-120-021
Statutory Authority: RCW 28B.10.528 and 28B.35.120(12). 07-01-065, § 106-120-021, filed 12/18/06, effective 1/18/07. Statutory Authority: RCW 28B.19.050 and 28B.35.120(11). 85-07-032 (Order 58), § 106-120-021, filed 3/15/85.