The Department of Developmental Services is responsible for the operation and maintenance of the facilities under its control, including the four state-owned and operated 24-hour care facilities and their buildings, grounds and infrastructure. The four active state-owned facilities comprise approximately 4.6 million gross square feet on 1,986 acres. The facilities are used to aid the Department's mission to provide medical, dental, and nursing care; supervision; active treatment; education and vocational training for residents with developmental disabilities. The Department also continues to be responsible for the maintenance of the buildings, grounds and infrastructure of Agnews Developmental Center, which stopped providing 24-hour care in March 2009. Agnews will be maintained in a warm shut-down mode until the facility is sold or transferred and no longer under the Department's control. The Department also leases two small state-operated community facilities but is not responsible for infrastructure or maintenance of these facilities.