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Controlled Unclassified Information (CUI)
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Controlled Unclassified Information (CUI)
> CUI Category: National Security Letter
CUI Category: National Security Letter
Banner Marking: CUI
Category Description:
Related to administrative orders sent to compel the recipients of the letters to provide information to federal investigators.
Category Marking:
LNSL
Alternative Banner Marking for Basic Authorities:
CUI//LNSL
How to Locate the Source Documents for CUI Authorities
Safeguarding and/or Dissemination Authority
Basic or
Specified
Banner Marking
Sanctions
50 USC 3162(b)
Basic
CUI
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