Wash. Admin. Code § 480-92-090
Statutory Authority: RCW 80.01.040 and 80.04.160. 03-24-028 (General Order R-510, Docket No. A-010648), § 480-92-090, filed 11/24/03, effective 1/1/04. Statutory Authority: RCW 80.01.040. 99-05-016 (Order R-458, Docket No. UR-980080), § 480-92-090, filed 2/5/99, effective 3/8/99. Statutory Authority: RCW 80.01.040 and 1991 c 272. 92-03-050 (Order R-366, Docket No. T-910676), § 480-92-090, filed 1/10/92, effective 2/10/92.