Wash. Admin. Code § 480-100-680
In order to use a REC or NPA to comply with the requirements of RCW 19.405.050(1), a utility must:
[Statutory Authority: RCW 80.01.040, 80.04.160, chapters 80.28, 19.280, and 19.405 RCW. WSR 26-01-063 (Docket UE-210183, General Order R-610), s 480-100-680, filed 12/11/25, effective 12/11/25.]