Wash. Admin. Code § 284-23-480
Statutory Authority: RCW 48.02.060(3)(a) and 48.17.010(5). 11-01-159 (Matter No. R 2010-09), § 284-23-480, filed 12/22/10, effective 1/22/11. Statutory Authority: RCW 48.02.060. 87-14-015 (Order R 87-6), § 284-23-480, filed 6/23/87, effective 9/1/87; 80-05-098 (Order R 80-5), § 284-23-480, filed 5/2/80, effective 10/1/80.