through "chuck holes" in the cell door, and each inmate is permitted out of their cell for one hour of exercise per day, alone. They are permitted no contact with other inmates and are under constant surveillance via closed-circuit television cameras. Administrative: Administrative security is a classification of prisons or detention centers that are for a specific purpose, such as housing mentally ill offenders. These range in levels of security from Minimum to Administrative Maximum Security (ADMAX), as in the case of ADX Florence in Colorado. Maximum: A custody level in which both design and construction as well as inmate classification reflect the need to provide maximum external and internal control and supervision of inmates primarily through the use of high security perimeters and extensive use of internal physical barriers and check points. Inmates accorded this status present serious escape risks or pose serious threats to themselves, to other inmates, to staff, or the orderly running of the institution. Supervision of inmates is direct and constant. ]