The following residential facilities shall be exempt from the operation of this chapter:

(1) Nursing homes licensed under chapter 18.51 RCW;

(2) Assisted living facilities licensed under chapter 18.20 RCW;

(3) Facilities approved and certified under chapter 71A.22 RCW;

(4) Residential treatment centers for individuals with mental illness licensed under chapter 71.24 RCW;

(5) Hospitals licensed under chapter 70.41 RCW;

(6) Homes for individuals with developmental disabilities licensed under chapter 74.15 RCW.

Application—2012 c 10: See note following RCW 18.20.010.