Wash. Admin. Code § 392-139-110
Statutory Authority: RCW 28A.150.290(1) and 84.52.0531(9). 01-22-098, § 392-139-110, filed 11/6/01, effective 12/7/01. Statutory Authority: RCW 28A.41.170 and 84.52.0531(10). 89-23-121 (Order 18), § 392-139-110, filed 11/22/89, effective 12/23/89; 88-03-007 (Order 88-6), § 392-139-110, filed 1/8/88.