Agencies must locate proposed Federal buildings on sites that are most advantageous to the United States. Executive agencies must consider factors such as whether the site will contribute to economy and efficiency in the construction, maintenance, and operation of the individual building, and how the proposed site relates to the Government's total space needs in the community. Prior to acquiring, constructing, or leasing buildings (or sites for such buildings), Federal agencies must use, to the maximum extent feasible, historic properties available to the agency. In site selections, Executive agencies must consider Executive Order 12072 (August 16, 1978, 43 FR 36869) and Executive Order 13006 ( 40 U.S.C. 3306 note). In addition, Executive agencies must consider all of the following:
41 C.F.R. § 102-73.255