Controlled Unclassified Information (CUI)

CUI Registry: Change Log

The Change Log reflects changes to CUI categories, subcategories, markings, authorities, and limited dissemination controls, such as addition, deletion, or transfer of information from one category/subcategory or authority to another.

The Change Log does not reflect regular maintenance of the same authority from one version of the United States Code (USC) or Code of Federal Regulations (CFR) to the next.   




New categories added:

  • Accident Investigation
  • Legislative Materials
  • Taxpayer Advocate Information
  • Written Determinations
  • Toxic Substances

Category descriptions updated, authorities and sanctions added for:

  • Bank Secrecy
  • Federal Taxpayer Information
  • Tax Convention
2018-10-29 Sanction Replaced in category Witness Protection

New Authorities added to categories:

  • Administrative Proceedings
  • Genetic Information
  • Health Information
  • Informant
  • Legal Privilege
  • Whistleblower Identity

Investigation category updated with new description and additional authority.

2018-09-26 New category Consumer Complaint Information added.
2018-09-26 Create new Organizational Index Grouping (Provisional), and 9 new provisional categories:
  1. Homeland Security Agreement Information
  2. Homeland Security Enforcement Information
  3. Information Systems Vulnerability Information - Homeland
  4. International Agreement Information - Homeland
  5. Operations Security Information
  6. Personnel Security Information
  7. Physical Security - Homeland
  8. Privacy Information
  9. Sensitive Personally Identifiable Information
2018-09-26 Move 4 categories to new Organizational Index Grouping Defense:
  1. Controlled Technical Information
  2. DoD Critical Infrastructure Security Information
  3. Naval Nuclear Propulsion Information
  4. Unclassified Controlled Nuclear Information - Defense
2018-09-26 New category Financial Supervision Information added. 
2018-04-02 New authority added to Whistleblower Identity category.
2018-04-02 CUI Registry taxonomy has been changed for simplification and to better meet agency needs:
  • CUI is controlled at the "category-level" only.
  • The term "subcategory" no longer exists within the CUI Registry's taxonomy.
  • Organizational Index Groupings (OIGs) are used to display categories in the Registry by general informational subject. OIGs are not used to control CUI.
2017-09-25 Intelligence-Internal Data subcategory added

Natural and Cultural Resources category added, with subcategories:

  1. Archaeological Resources
  2. Historic Properties
  3. National Park System Resources
2017-07-07 Financial-Federal Housing Finance Non-Public Information subcategory added
2017-07-07 Proprietary Business Information-Ocean Common Carrier and Marine Terminal Operator Agreements subcategory added
2017-06-20 Export Control-Research authorities updated to reflect substantive changes to 15 CFR 734. Controls from 15 CFR 734.8(c) and 15 CFR 734.11(a) have been incorporated into 15 CFR 734.8(b) 
2017-05-09 Privacy category description updated to reference OMB M-17-12 (previously OMB M-07-16)


Nuclear-Recommendation Material subcategory added


Financial-Central Contractor Registration renamed Proprietary Business Information-System for Award Management with updated subcategory description

2017-03-27 Privacy category authority OMB M-17-12 rescinded and replaced OMB M-07-16 on January 3. 2017.