Wash. Admin. Code § 220-56-382
Statutory Authority: RCW 75.08.080. 94-14-069, § 220-56-382, filed 7/1/94, effective 8/1/94; 93-08-034 (Order 93-20), § 220-56-382, filed 3/31/93, effective 5/1/93; 86-09-020 (Order 86-08), § 220-56-382, filed 4/9/86; 80-13-064 (Order 80-123), § 220-56-382, filed 9/17/80.