Wash. Admin. Code § 388-101D-0035
The service provider must:
[WSR 16-14-058, recodified as § 388-101D-0035, filed 6/30/16, effective 8/1/16. Statutory Authority: RCW 71A.12.080. WSR 10-03-065, § 388-101-3205, filed 1/15/10, effective 2/15/10.]