As the construction management agency for Illinois state government since 1972, the Capital Development Board (CDB) oversees the construction of new state facilities, such as prisons, college and university classroom buildings, mental health hospitals and state parks. In addition, CDB is responsible for renovation and rehabilitation projects at the State's 8,771 state-owned buildings containing more than 101,085,618 square-feet of floor space. The agency also works with the Illinois State Board of Education to administer grants for school construction and renovation to local elementary and secondary school districts through the School Construction Program. In addition to its construction duties, CDB also is responsible for the removal of hazardous materials such as asbestos and lead from state-owned facilities, the replacement of leaking underground storage tanks on state property and the remodeling of state buildings to accommodate persons with disabilities.