Wash. Admin. Code § 480-120-166
Statutory Authority: RCW 80.01.040 and 80.04.160. 05-03-031 (Docket No. UT 040015, General Order No. R-516), § 480-120-166, filed 1/10/05, effective 2/10/05; 03-24-028 (General Order R-510, Docket No. A-010648), § 480-120-166, filed 11/24/03, effective 1/1/04; 03-01-065 (Docket No. UT-990146, General Order No. R-507), § 480-120-166, filed 12/12/02, effective 7/1/03.