CUI

Military abbreviation · Military Term

CUI
Stands forControlled unclassified information
CategoriesMilitary

CUI stands for Controlled unclassified information, a military term abbreviation.

Government-wide category for unclassified information that requires safeguarding or limited dissemination under law, regulation or policy, such as export-controlled data, privacy information and critical infrastructure details.

Example: Defense contractors must protect CUI on their networks under federal cybersecurity rules.

Usage notes

The program was created by Executive Order 13556 in 2010 and is administered by the National Archives. The Defense Department implemented it in 2020, replacing the FOUO marking. Contractors handling CUI face cybersecurity certification requirements.

More military term abbreviations

  • COP – Combat outpost
  • CP – Command post
  • CQ – Charge of quarters
  • CQB – Close-quarters battle
  • CSAR – Combat search and rescue
  • CT – Counterterrorism
  • CZTE – Combat Zone Tax Exclusion
  • DA – Direct action
  • DD – Dishonorable discharge
  • DEERS – Defense Enrollment Eligibility Reporting System
  • DEFCON – Defense readiness condition
  • DEP – Delayed Entry Program

See all 248 military term abbreviations →