Marking classified national security information
Subtitle: as required by Executive Order 12958, as amended, Classified National Security Information, March 25, 2003 and ISOO implementing directive no. 1, effective September 22, 2003.
Contributors: United States. Information Security Oversight Office.
Publisher: Information Security Oversight Office
Published: 2007
Place of publication: Washington, D.C. (700 Pennsylvania Ave., N.W., Washington, DC 20408-0001)
Language: eng
Number of pages: 30
Subjects: Security classification (Government documents) -- United States
Notes: Cover title.

"October 2007"