Controlled Unclassified Information (CUI)

CUI Registry

Critical Infrastructure-Protected Critical Infrastructure Information

Category-Subcategory Practices

Category-Subcategory: Critical Infrastructure-Protected Critical Infrastructure Information
Category Description:

Systems and assets, whether physical or virtual, so vital that the incapacity or destruction of such may have a debilitating impact on the security, economy, public health or safety, environment, or any combination of these matters, across any Federal, State, regional, territorial, or local jurisdiction.

Subcategory Description: As defined by 6 USC 131-134, and 6 CFR 29, PCII relates to threats, vulnerabilities, or operational experience related to the national infrastructure. PCII offers protection to private sector infrastructure information voluntarily shared with government entities for purposes of homeland security.
Abbreviated Marking: PLACEHOLDER
Marking and Handling Instructions:

  • Safeguarding, Marking, Dissemination and/or Decontrol measures that differ from General Guidelines are required by statute, regulation, or government-wide policy.
  • Reference individual Safeguarding and Dissemination authorities for control citations, including specific handling practices, if applicable.

Select Safeguarding/Dissemination or Sanction Authority to view statutory/regulatory language in a new window.
Authority links are updated based on regular re-publication of the United States Code and Code of Federal Regulations.

Safeguarding and/or Dissemination Authority
An asterisk (*) indicates that the authority defines specific handling practices
6 CFR 29* 6 CFR 29.9

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