Wash. Admin. Code § 392-122-100
Statutory Authority: RCW 28A.150.290. 96-03-002, § 392-122-100, filed 1/3/96, effective 2/3/96. Statutory Authority: RCW 28A.150.290, 1989 1st ex.s. c 19 and 1990 1st ex.s. c 16. 91-03-118 (Order 2), § 392-122-100, filed 1/23/91, effective 2/23/91. Statutory Authority: RCW 28A.41.170. 84-20-078 (Order 84-36), § 392-122-100, filed 10/2/84.