54 U.S.C. § 306101

(a) In General.— (1) Agency head responsibility .— The head of each Federal agency shall assume responsibility for the preservation of historic property that is owned or controlled by the agency. (2) Use of available historic property .— Prior to acquiring, constructing, or leasing a building for purposes of carrying out agency responsibilities, a Federal agency shall use, to the maximum extent feasible, historic property available to the agency, in accordance with Executive Order No. 13006 ( 40 U.S.C. 3306 note). (3) Necessary preservation .— Each Federal agency shall undertake, consistent with the preservation of historic property, the mission of the agency, and the professional standards established pursuant to subsection (c), any preservation as may be necessary to carry out this chapter. (b) Guidelines for Federal Agency Responsibility for Agency-Owned Historic Property .— In consultation with the Council, the Secretary shall promulgate guidelines for Federal agency responsibilities under this subchapter (except section 306108). (c) Professional Standards for Preservation of Federally Owned or Controlled Historic Property .— The Secretary shall establish, in consultation with the Secretary of Agriculture, the Secretary of Defense, the Smithsonian Institution, and the Administrator of General Services, professional standards for the preservation of historic property in Federal ownership or control.