National Security Act of 1947. (P.L. 253, 80th Congress, July 26, 1947) (61 Stat. 495). as Amended through Dec. 31, 1958, and Including the National Security Act Amendments of 1949, P.L. 216, 81st Congress, Aug. 10, 1949 (63 Stat. 578); P.L. 416, 82d Congress, June 28, 1952, Reorganization Plan 3 of 1953; Reorganization Plan 6 of 1953; and as in Part Repealed and Codified in Title 10 of the U.S. Code, by P.L. 1028, 84th Congress, Aug. 10, 1956 (70A Stat. 1), and Department of Defense Reorganization Act of 1958, P.L. 85-599, Aug. 6, 1958 (72 Stat. 514).