Wash. Admin. Code § 480-100-178
Statutory Authority: RCW 80.01.040 and 80.04.160. 11-06-032 (Docket U-100523, General Order R-563), § 480-100-178, filed 2/25/11, effective 3/28/11; 01-11-004 (Docket No. UE-990473, General Order No. R-482), § 480-100-178, filed 5/3/01, effective 6/3/01.