The following residential facilities shall be exempt from the operation of this chapter:
(1) Nursing homes licensed under chapter 18.51 RCW;
(2) Boarding homes licensed under chapter 18.20 RCW;
(3) Facilities approved and certified under chapter 71A.22 RCW;
(4) Residential treatment centers for the mentally ill licensed under chapter 71.24 RCW;
(5) Hospitals licensed under chapter 70.41 RCW;
(6) Homes for the developmentally disabled licensed under chapter 74.15 RCW.
[1989 c 427 § 17.]