Nothing in this chapter or the rules adopted under it may be construed as authorizing the supervision, regulation, or control of the remedial care or treatment of residents in any adult family home conducted by and for the adherents of a church or religious denomination who rely upon spiritual means alone through prayer for healing in accordance with the tenets and practices of such church or religious denomination and the bona fide religious beliefs genuinely held by such adherents.
RCW 70.128.170