Page 2 of the Contents Page of Executive Order 10501 "Safeguarding Official Information in the Interest of the Defense of the United States." Note X3-10-1 Downgrading and Declassification Chart.
Executive Order 10501 signed by President Eisenhower.
HEW copy of Executive Order 10501 "Safeguarding Official Information in the Interest of the Defense of the United States." HEW October 15,1954 with Supersedes to January 2, 1969.