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PS-03(01) Classified Information

NIST SP 800-53 (controls) 5.2.0 against 5.1.1+u4
All changes in this version
unchanged PS part of PS-3

Title

Classified Information

Control

Verify that individuals accessing a system processing, storing, or transmitting classified information are cleared and indoctrinated to the highest classification level of the information to which they have access on the system.

Discussion

Classified information is the most sensitive information that the Federal Government processes, stores, or transmits. It is imperative that individuals have the requisite security clearances and system access authorizations prior to gaining access to such information. Access authorizations are enforced by system access controls (see [AC-3](#ac-3) ) and flow controls (see [AC-4](#ac-4)).

Related controls

ac-3, ac-4

STIG rules that implement this control 0

No followed STIG rule cites a CCI indexed to this control (CCI list 2026-07-14).