The adult family home must ensure approved automatic smoke detectors are:

(1) Installed, at a minimum, in the following locations:

(a) Every bedroom used by a resident;

(b) In proximity to the area where the resident or adult family home staff sleeps; and

(c) On every level of a multilevel home.

(2) Installed in a manner so that the fire warning is heard in all parts of the home upon activation of a single detector; and

(3) Kept in working condition at all times.