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  The online repository of information and policy regarding how authorized holders of CUI should handle such information. Note: The Controlled Unclassified Information (CUI) Registry: (i) identifies all categories and subcategories of information that require safeguarding or dissemination controls consistent with law, regulation and Government-wide policies; (ii) provides descriptions for each category and subcategory; (iii) identifies the basis for safeguarding and dissemination controls;(iv) contains associated markings and applicable safeguarding, disseminating, and (v) specifies CUI that may be originated only by certain executive branch agencies and organizations. The CUI Executive Agent is the approval authority for all categories/subcategories of information identified as CUI in the CUI Registry and only those categories/subcategories listed are considered CUI.
CNSSI 4009-2015 from E.O. 13556 - Adapted