15 Miss. Code R. § 16-1-51.19.1
A child/adolescent psychiatric residential treatment facility shall continuously employ an adequate number of staff and an appropriate mix of staff to carry out its goals and objectives as well as to ensure the continuous provision of sufficient regular and emergency supervision of all patients 24 hours a day. As a component of the written plan for services and staff composition, the psychiatric residential treatment facility shall submit a written staffing rationale which justifies the staff to be utilized, the mix of staff and the plan for appropriate supervision and training. This staffing plan shall be based on the population to be served and the services to be provided. The staffing plan and its rationale shall be subjected to approval by the Mississippi Department of Health.
15 Miss. Code. R. § 16-1-51.19.1