Wash. Admin. Code § 392-139-055
Statutory Authority: RCW 28A.150.290(2) and 84.52.0531(10). 93-21-092 (Order 93-20), § 392-139-055, filed 10/20/93, effective 11/20/93. Statutory Authority: RCW 28A.41.170 and 84.52.0531(10). 89-23-121 (Order 18), § 392-139-055, filed 11/22/89, effective 12/23/89; 88-03-007 (Order 88-6), § 392-139-055, filed 1/8/88.