Wash. Admin. Code § 388-78A-2620
If an assisted living facility allows pets to live on the premises, the assisted living facility must:
(1) Develop, implement and disclose to potential and current residents, policies regarding:
(2) Ensure animals living on the assisted living facility premises:
[Statutory Authority: Chapter 18.20 RCW. WSR 13-13-063, § 388-78A-2620, filed 6/18/13, effective 7/19/13. Statutory Authority: RCW 18.20.090 (2004 c 142 § 19) and chapter 18.20 RCW. WSR 04-16-065, § 388-78A-2620, filed 7/30/04, effective 9/1/04.]