41 CFR § 102-79.60
Are agencies required to use historic properties available to the agency?
June 9, 2020
Yes, Federal agencies must assume responsibility for the preservation of the historic properties they own or control. Prior to acquiring, constructing or leasing buildings, agencies must use, to the maximum extent feasible, historic properties already owned or leased by the agency (16 U.S.C. 470h-2).