Wash. Admin. Code § 284-30-590
Statutory Authority: RCW 48.02.060. 10-01-074 (Matter No. R 2008-12), § 284-30-590, filed 12/14/09, effective 1/14/10. Statutory Authority: RCW 48.02.060, 48.44.050 and 48.46.200. 87-09-071 (Order R 87-5), § 284-30-590, filed 4/21/87.