Classified Information

Information that has been determined: 

1. pursuant to Executive Order 12958 as amended by Executive Order 13526, or any predecessor Order, to be classified national security information; or 
2. pursuant to the Atomic Energy Act of 1954, as amended, to be Restricted Data (RD).

See NIST SP 800-53 Rev. 4 under Classified Information for more information.


Classified information or classified national security information means information that has been determined pursuant to E. O. 12958 as amended by E.O. 13292 or any predecessor order to require protection against unauthorized disclosure and is marked to indicate its classified status when in documentary form.

See NIST SP 800-59 under Classified Information (E.O. 13292) for more information.


Information that has been determined pursuant to Executive Order (E.O.) 13292 or any predecessor order to require protection against unauthorized disclosure and is marked to indicate its classified status when in documentary form.

See the following under Classified Information for more details:
NIST SP 800-60 Vol. 1 Rev. 1 NIST SP 800-60 Vol. 2 Rev. 1