The regulations specify the minimum level of accessibility in alterations and new construction. The regulations cover common-use areas, entrances used by the public, noncontact visiting areas, the number of inmate cells or rooms that must be accessible, accessibility of routes or paths of travel, and audible and emergency warning systems in housing areas. Specific topics covered include doors, entrances, security systems, counters, communication devices, seats, medical care facilities, toilet facilities, beds, fountains, storage facilities, and control mechanisms. Diagram and discussion of grab bars for prison cells