(1) A hospital-based psychiatric residential treatment facility (PRTF) must meet the following requirements:

(a) the PRTF must be in a hospital facility that includes inpatient psychiatric hospital beds and provides inpatient hospital psychiatric care to individuals under age 21. The PRTF beds and the hospital beds must be owned and operated by a single entity, and they must be located in an integrated facility;

(b) the PRTF must be located in Montana;

(c) the inpatient psychiatric hospital beds and the PRTF beds must be served by a common administrative and support staff;

(d) the PRTF must be served by no less than one full-time equivalent psychiatrist for every 25 youth;

(e) both the hospital and the PRTF must have an organized medical staff that is on call and available within 20 minutes, 24 hours a day, seven days a week; and

(f) both the hospital and the PRTF must have 24-hour nursing care by licensed registered nurses.