U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
(a) Executive Order 12065, “National Security Information,” June 28, 1978, (hereinafter E.O. 12065).
(b) Information Security Oversight Office, Directive No. 1, “National Security Information,” October 2, 1978, (hereinafter ISOO Directive No. 1).