Wash. Admin. Code § 220-356-180
Statutory Authority: RCW 75.08.080. 94-12-009 (Order 94-23), § 220-49-064, filed 5/19/94, effective 6/19/94. Statutory Authority: 75.08.080 and 75.28.245. 90-07-003 (Order 90-17), § 220-49-064, filed 3/8/90, effective 4/8/90.