16 U.S.C. § 410hhhh–5

For the purposes of this subchapter— (1) the term “preservation district” means the Jimmy Carter National Preservation District established under section 410hhhh–1 of this title ; (2) the term “historical park” means the Jimmy Carter National Historical Park established under section 410hhhh of this title ; and (3) the term “Secretary” means the Secretary of the Interior.