Inmates must "earn their transfer" to the SuperMax by chronically disrupting the functioning and security of other correctional centers through excessive violence or extreme gang activities. The facility is thus designed for inmates who are dangerous and extremely manipulative to other inmates and prison personnel. The operating philosophy of this facility differs from the corrections norm. Rather than being transported to services, inmates remain in their cells as long as 23 hours a day, with an hour allowed for personal hygiene and exercise. Food, library, and even minor medical services are delivered to inmates in their cells. Inmates are transported out of cell blocks only for visitation, court proceedings, and major medical procedures. They always are cuffed, restrained, and escorted by security staff. The interior design ensures separate inmate and staff circulation paths within the facility. Holding cells along traffic routes eliminate inmate contact. Limiting inmate movement reduces the opportunity for dangerous activity and enhances the safety of the facility. There are two basic physical components of the facility: the closed maximum-security unit (CMAX) and its minimum- security unit support facility. The CMAX's basic organizational element is the inmate housing pod. Each pod contains 60 cells: 10 in each of six cellblocks. The cellblocks are arranged around a control station positioned between first-level and upper tiers, with visual access to both levels of the pod. Movement within each cellblock is controlled from this location. The concluding section of this article outlines criteria that were helpful in developing the design for the CMAX and that may be applied to other correctional facility types as well.