Establishment of a community rehabilitation program means the acquisition, expansion, remodeling, or alteration of existing buildings necessary to adapt them to community rehabilitation program purposes or to increase their effectiveness for such purposes (subject, however, to such limitations as the federal government or the director may, by regulation, prescribe in order to prevent impairment of the objectives of, or duplication of, other laws providing assistance in the construction of such facilities for community rehabilitation programs), and may include additional equipment and staffing permitted by federal law or regulation.