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ISOO Notices

As of 2026, to support a modernized government information management landscape that must consider both classified information and controlled unclassified information as having national security implications, guidance that in the past may have been issued as an ISOO Notice or CUI Notice will be issued in a single series of ISOO Notices. CUI Notices and Executive Agent Guidance issued prior to 2026 continue to remain in effect in their current format and will not be renamed. However, future guidance that may have in the past been issued as a CUI Notice will now be issued as an ISOO Notice. CUI Notices and Executive Agent Guidance issued prior to 2026 can be found by scrolling down on this page, or by clicking here

*Please note the table headers are clickable, sort the table by the clicked column header.

Number Date Title Notes Date of Change Topic
2026-08 09/02/2026 Controlled Unclassified Information (CUI) Program Revised Requirements for Waivers Rescinds and replaces CUI Notices 2020-07, 2020-06, 2020-05, 2020-02, and CUI Memo 2020-03-30   CUI
2026-07 09/02/2026 Executive Agent Guidance for Implementation of the Controlled Unclassified Information Program Rescinds CUI Notices 2022-01 and 2020-01   CUI
2026-06 08/26/2026 Standards for GSA Approved Security Equipment This Notice rescinds and replaces ISOO Notices 2022-03, 2021-01, 2014-02, 2012-04, and 2012-03.   Physical Security
2026-05 08/17/2026 Appeal Procedures for the Interagency Security Classification Appeals Panel     Declassification
2026-04 08/03/2026 Agencies Eligible to Receive Referrals from Automatic Declassification at 25, 50, and 75 Years Replaces Notice 2024-02 08/10/2026 Declassification

2026-03

Attachment A

07/09/2026

06/08/2026

Department of State Declassification Referral Waiver

Updated Department of State Declassification Referral Waiver

     Declassification
2026-02 06/10/2026 Prohibition on the Use of Combination Translator Applications to Generate Lock Combinations that Protect Classified Information      
2026-01 3/30/2026 Responsible Use of Classified National Security Information and Controlled Unclassified Information with Artificial Intelligence      
2025-01 9/08/2025 Incorporating Automatic Declassification Exemptions into Security Classification Guidance      
2024-03 7/23/2024 Changes to ISOO Liaison Program      
2024-01 10/05/2023 Joint Ventures and Entity Eligibility Determinations      
2023-02 06/23/2023 Handling NATO Information Identified during Automatic Declassification Processing Cancels Notice 2009-06 6/23/23  
2023-01 06/21/2023 Classified Records Found Outside Government Control      
2022-02 5/23/2022 Declassification Guide Review Requirements      
2022-01 05/10/2022 Digital Signatures on Standard Form (SF) 312, Classified Information Nondisclosure Agreement        
2021-03 10/05/2021 Applying to the Technology Modernization Fund (TMF) to support classification and declassification improvements      
2021-02 07/16/2021 Partial Waiver for the Declassification Review of Certain White House, National Security Council (NSC) and Homeland Security Council (HSC) Records Cancels Notice 2017-03 7/16/2021  
2020-02 08/24/2020 Transmitting Classified Information      
2018-01 01/16/2018 Declassification Date or Event Markings Clarification       
2017-04  09/14/2017 Security Classification Guides      
2017-02 04/17/2017 Clarification of Classification by Compilation       
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      
2014-01 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)      
2012-02 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      
2009-07 01/08/2009 Mandatory Declassification Review – Inappropriate Citation of Section 6.2(d) of E.O. 13526
 		      
2009-04 10/10/2008 “Best Practices” for Declassification Review Record Keeping
 		 Reviewed 04/26/2010  
2009-03

 

 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, 2009-06, (2009-08 through 2009-16), 2010-02, 2011-01, 2012-03, 2012-04, 2013-02, 2013-04, 2014-02, 2014-04, (2015-02 through 2015-05), 2017-01, 2017-03, 2019-01, 2020-01, 2020-03, 2021-01, 2022-03, 2024-02. 

CUI Notices and Executive Agent Guidance Issued Prior to 2026

Number Date Title
CUI Notice 2020-04 06/16/2020 Assessing Security Requirements for CUI in Non-Federal Information Systems

CUI Notice 2020-03

CUI Notice 2020-03a

 06/03/2020

CUI Non-Disclosure Agreement Template Memo

CUI Non-Disclosure Agreement Template (Attachment)
CUI Notice 2019-04 09/06/2019 Oversight of the CUI Program within Private Sector Entities
CUI Notice 2019-03 07/15/2019 Destroying CUI in Paper Form (supersedes CUI Notice 2017-02 dated August 17, 2017)

CUI Notice 2019-02

CUI Notice 2019-02a

 05/13/2019

CUI Program Manager Position Description

Attachment for CUI Notice 2019-02
CUI Notice 2019-01 02/22/2019 CUI Coversheet and Media Labels
CUI Joint Memo 2018-11-19 11/19/2018 Decontrolling CUI in response to a FOIA request
CUI Notice 2018-07 11/16/2018 CUI Limited Dissemination Controls
CUI Notice 2018-06 11/16/2018 Establishing, Eliminating or Modifying Categories of CUI
CUI Notice 2018-04 11/16/2018 Provisional Categories (supersedes CUI Office Notice 2013-01 dated May 22, 2013)
CUI Notice 2018-05 10/24/2018 Implementation Guidance when CUI is commingled with CNSI
CUI Memo 2018-10-16 10/16/2018 CUI Senior Agency Official/Program Manager Change Form
CUI Notice 2018-02 01/24/2018 Recommendations for CUI Basic Training
CUI Notice 2018-01 01/24/2018 Guidance for Drafting Agreements with Non-Executive Branch Entities involving CUI
CUI Notice 2017-01 06/12/2017 Implementation Recommendations for the CUI Program
CUI Handbook 2016-12-06 12/06/2016 Marking CUI Rev 1.1 (Marking Handbook)
CUI Joint Memo 2014-07-03 07/03/2014 Revised Guidance regarding CUI and the Freedom of Information Act (supersedes joint issuance dated November 22, 2011)
CUI Memo 2013-04-11 04/11/2013 Appointments of Senior Agency Official and Program Manager for CUI Program Implementation

*The following CUI Notices have been rescinded:
2022-01, 2020-07, 2020-06, 2020-05, 2020-02, 2020-01, and CUI Memo 2020-03-30

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