Wash. Admin. Code § 388-829A-070
(1) The provider must deliver services in:
[Statutory Authority: RCW 71A.12.030 and 71A.12.110. WSR 25-11-082, s 388-829A-070, filed 5/21/25, effective 7/1/25. Statutory Authority: RCW 71A.12.30 [ 71A.12.030] and Title 71A RCW. WSR 07-16-101, § 388-829A-070, filed 7/31/07, effective 9/1/07.]