Information Security Oversight Office (ISOO)

ISOO Notices

Since September 30, 2008, the Information Security Oversight Office has issued ISOO Notices to disseminate and provide consistent guidance to Federal Agencies, in an effort to improve their classified national security information programs. Each ISOO Notice focuses on a single topic related to classification, safeguarding, or declassification.

As of September 30, 2010, due to the issuance of Executive Order 13526 and the revision to 32 C.F.R part 2001, many of the original notices have been revised, cancelled, or superseded. The notices listed reflect these changes.

**Please note all notices are in PDF format

ISOO Notices FY 2012

  • ISOO Notice 2012-04: Additional Guidance on Standards for Security Equipment

  • ISOO Notice 2012-03: Additional Guidance on Supplemental Controls Required for Safeguarding Classified National Security Information

  • ISOO Notice 2012-02: Classification Marking Instructions on the Use of "50X1-HUM" vs "25X1-human" as a Declassification Instruction

  • ISOO Notice 2012-01: Requirements for Derivative Classifier Training

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ISOO Notices FY 2010 - FY 2011

  • ISOO Notice 2011-02: Further Guidance and Clarification on Commingling Atomic Energy Information and Classified National Security Information

  • ISOO Notice 2011-01: Review and Approval of Exemptions to Automatic Declassification Pursuant to Sections 3.3(b) and 3.3(h) of Executive Order 13526

  • ISOO Notice 2010-02: Agencies Eligible/Ineligible to Receive Referrals

  • ISOO Notice 2010-01: Status Update of ISOO Notices

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ISOO Notices FY 2009 and Prior

  • ISOO Notice 2009-16: Prohibited Use of Electronic Signatures on the Standard Form 312, "Classified Information Non-disclosure Agreement"

  • ISOO Notice 2009-07: Mandatory Declassification Review – Inappropriate Citation of Section 6.2(c) of E.O. 12958, as amended

  • ISOO Notice 2009-06: "Handling NATO Information Identified during Automatic Declassification Processing"

  • ISOO Notice 2009-04: “Best Practices” for Declassification Review Record Keeping

  • ISOO Notice 2009-03: Notification, Coordination, and Documentation Related to Subsequent Reviews Conducted by Primary Reviewing Agencies
    [Related to Automatic Declassification]

  • ISOO Notice 2009-02: Initial Instructions on the Use of the SF 715, "Declassification Review Tab"

  • ISOO Notice 2009-01: Use of the Standard Form 715, "Declassification Review Tab"

  • Announcement memo of September 30, 2008

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Cancelled Notices ISOO Notices

  • ISOO Notice 2009-15: Further Definition of "Comparable Media" as it Relates to Delays in the Onset of Automatic Declassification

  • ISOO Notice 2009-14: Corrections to Citations in 32 C.F.R. Part 2001 Referencing Open Storage Areas

  • ISOO Notice 2009-13: Prohibited Use of X1-X8 Markings

  • ISOO Notice 2009-12: Prohibited Use of the Marking “Originating Agency’s Determination Required” (OADR)

  • ISOO Notice 2009-11: Prohibited Use of Markings "MR" (Manual Review) and "Source Marked MR, date of source [date]"

  • ISOO Notice 2009-10: Security Violation Reporting to ISOO

  • ISOO Notice 2009-09: Derivative Classification – Identification of Multiple Sources

  • ISOO Notice 2009-08: Utilization of Classified Addenda

  • ISOO Notice 2009-05: Agencies Ineligible to Receive Referrals Identified by Primary Reviewing Agencies Amongst Records Subject to Automatic Declassification on December 31st of 2006, 2007, and 2008

Comments or suggestions are welcome and encouraged. Please send comments or suggestions via e-mail to isoo@nara.gov

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