For any adult family home newly licensed after July 1, 2007 or any currently licensed adult family home that adds or modifies a new or existing water hazard after July 1, 2007 must:

(1) Comply with this section and the requirements of the:

(a) International Residential Code (IRC); and

(b) Washington state amendments to the International Residential Code (IRC).

(2) Enclose water hazards over twenty four inches deep with:

(a) Fences and gates at least forty-eight inches high; and

(b) Audible alarms when doors, screens, and gates that directly lead to or surround the water hazard, are opened.