Wash. Admin. Code § 480-121-061
Statutory Authority: RCW 80.01.040 and 80.04.160. 03-24-028 (General Order R-510, Docket No. A-010648), § 480-121-061, filed 11/24/03, effective 1/1/04; 02-11-080 (General Order No. R-499, Docket No. UT-991922), § 480-121-061, filed 5/14/02, effective 6/17/02; 01-09-002 (Docket No. U-991301, General Order No. R-481), § 480-121-061, filed 4/4/01, effective 5/5/01.