For the purposes of this part-
Agency has the meaning given by 5 U.S.C. 551(1)(A)-(D) and 552(f) .
Archivist means the Archivist of the United States or staff of the National Archives and Records Administration acting on behalf of the Archivist.
Presidential records has the meaning given by 44 U.S.C. 2201(2) .
36 C.F.R. §1270.4