Applicability.
The rules in this chapter apply to any person or party who files a cost of service study in any proceeding before the commission.
[Statutory Authority: RCW
80.01.040,
80.04.160 and chapter
80.28 RCW. WSR 20-15-024 (Docket UE-170002 and UG-170003, General Order R-599), ยง 480-85-020, filed 7/7/20, effective 8/7/20.]