ISOO Notices
The Information Security Oversight Office issues 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.
*Please note the table headers are clickable, sort the table by the clicked column header.
Current Notices
| Number | Date | Title | Status | Date of Change |
|---|---|---|---|---|
| 2018-01 | 01/16/2018 | Declassification Date or Event Markings Clarification | ||
| 2017-04 | 09/14/2017 | Security Classification Guides | ||
| 2017-03 | 07/12/2017 |
National Security Council (NSC) Partial Waiver for the Declassification Review of Certain White House and NSC Records |
Cancels Notice 2013-04 | 07/12/2017 |
| 2017-02 | 04/17/2017 | Clarification of Classification by Compilation | ||
| 2017-01 | 04/06/2017 | Upcoming ISOO Notices and Data Calls for FY 2017 | ||
| 2015-05 | 09/25/2015 |
Agencies eligible to receive referrals from Automatic Declassification at 25, 50, and 75 years |
Cancels Notice 2014-04 | 09/25/2015 |
| 2015-04 | 07/10/2015 |
Update on Recent Cyber Incidents at OPM |
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| 2015-03 | 07/07/2015 |
Update for Security Clearance Holders |
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| 2015-02 | 06/16/2015 |
Message from OPM to Security Clearance Holders |
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| 2015-01 | 06/05/2015 | Withholding Authorities for Mandatory Declassification Review | ||
| 2014-03 | 08/27/2014 | U.S. Protection of Information Shared by the Government of the United Kingdom | ||
| 2014-02 | 04/04/2014 | Procurement of Security Equipment | ||
| 2014-01 | 03/26/2014 | Appeal Rights for Mandatory Declassification Review Requests and the Rejection of Requests for Specific Reasons | ||
| 2013-06 | 09/18/2013 | Changes in Express Mail | ||
| 2013-05 | 08/19/2013 | Revision of the Standard Form (SF) 312, “Classified Information Nondisclosure Agreement” | ||
| 2013-03 | 04/10/2013 | Processing of Mandatory Declassification Review Requests Appealed to the Interagency Security Classification Appeals Panel | ||
| 2013-01 | 11/01/2012 | Further Marking Guidance on Commingling North Atlantic Treaty Organization (NATO) and Classified National Security Information (NSI) | ||
| 2012-04 | 10/12/2012 | Additional Guidance on Standards for Security Equipment | ||
| 2012-03 | 04/02/2012 | Additional Guidance on Supplemental Controls Required for Safeguarding Classified National Security Information | ||
| 2012-02 | 12/23/2011 | Classification Marking Instructions on the Use of "50X1-HUM" vs "25X1-human" as a Declassification Instruction | ||
| 2012-01 | 12/08/2011 | Requirements for Derivative Classifier Training | ||
| 2011-02 | 05/18/2011 | Further Guidance and Clarification on Commingling Atomic Energy Information and Classified National Security Information | ||
| 2009-16 | 09/17/2009 | Prohibited Use of Electronic Signatures on the Standard Form 312, "Classified Information Non-disclosure Agreement" |
Reviewed | 04/26/2010 |
| 2009-07 | 01/08/2009 | Mandatory Declassification Review – Inappropriate Citation of Section 6.2(d) of E.O. 13526 |
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| 2009-06 | 12/12/2008 | Handling NATO Information Identified during Automatic Declassification Processing |
Reviewed | 04/26/2010 |
| 2009-04 | 10/10/2008 | “Best Practices” for Declassification Review Record Keeping |
Reviewed | 04/26/2010 |
| 2009-03
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10/10/2008 | Notification, Coordination, and Documentation Related to Subsequent Reviews Conducted by Primary Reviewing Agencies [Related to Automatic Declassification] |
Reviewed | 04/26/2010 |
| 2009-02 | 10/10/2008 | Initial Instructions on the Use of the SF 715, "Declassification Review Tab" | Revised | 09/30/2010 |
| 2009-01 | 10/10/2008 | Use of Standard Form 715, "Declassification Review Tab" | Revised | 09/30/2010 |
*The following Notices have been canceled:
2009-05, (2009-08 through 2009-15), 2010-02, 2011-01, 2013-04, 2014-04