If you click the Notes tab it's right there. Executive Order 10104
Ex. Ord. No. 10104. Defining Certain Vital Military and Naval Installations and Equipment as Requiring Protection Against the General Dissemination of Information Relative Thereto
Ex. Ord. No. 10104, Feb. 1, 1950, 15 F.R. 597, provided: WHEREAS section 795 of title 18 of the United States Code provides: [Omitted.] AND WHEREAS section 797 of title 18 of the United States Code provides: [Omitted.] NOW, THEREFORE, by virtue of the authority vested in me by the foregoing statutory provisions, and in the interests of national defense, I hereby define the following as vital military and naval installations or equipment requiring protection against the general dissemination of information relative thereto: 1. All military, naval, or air-force installations and equipment which are now classified, designated, or marked under the authority or at the direction of the President, the Secretary of Defense, the Secretary of the Army, the Secretary of the Navy, or the Secretary of the Air Force as “top secret”, “secret”, “confidential”, or “restricted”, and all military, naval, or air-force installations and equipment which may hereafter be so classified, designated, or marked with the approval or at the direction of the President, and located within: (a) Any military, naval, or air-force reservation, post, arsenal, proving ground, range, mine field, camp, base, airfield, fort, yard, station, district, or area. (b) Any defensive sea area heretofore established by Executive order and not subsequently discontinued by Executive order, and any defensive sea area hereafter established under authority of section 2152 of title 18 of the United States Code. (c) Any airspace reservation heretofore or hereafter established under authority of section 4 of the Air Commerce Act of 1926 (44 Stat. 570; 49 U.S.C. 174) except the airspace reservation established by Executive Order No. 10092 of December 17, 1949.
Ex. Ord. No. 10104. Defining Certain Vital Military and Naval Installations and Equipment as Requiring Protection Against the General Dissemination of Information Relative Thereto
Ex. Ord. No. 10104, Feb. 1, 1950, 15 F.R. 597, provided: WHEREAS section 795 of title 18 of the United States Code provides: [Omitted.] AND WHEREAS section 797 of title 18 of the United States Code provides: [Omitted.] NOW, THEREFORE, by virtue of the authority vested in me by the foregoing statutory provisions, and in the interests of national defense, I hereby define the following as vital military and naval installations or equipment requiring protection against the general dissemination of information relative thereto: 1. All military, naval, or air-force installations and equipment which are now classified, designated, or marked under the authority or at the direction of the President, the Secretary of Defense, the Secretary of the Army, the Secretary of the Navy, or the Secretary of the Air Force as “top secret”, “secret”, “confidential”, or “restricted”, and all military, naval, or air-force installations and equipment which may hereafter be so classified, designated, or marked with the approval or at the direction of the President, and located within: (a) Any military, naval, or air-force reservation, post, arsenal, proving ground, range, mine field, camp, base, airfield, fort, yard, station, district, or area. (b) Any defensive sea area heretofore established by Executive order and not subsequently discontinued by Executive order, and any defensive sea area hereafter established under authority of section 2152 of title 18 of the United States Code. (c) Any airspace reservation heretofore or hereafter established under authority of section 4 of the Air Commerce Act of 1926 (44 Stat. 570; 49 U.S.C. 174) except the airspace reservation established by Executive Order No. 10092 of December 17, 1949.