NIST 800-53 REV 5 • ASSESSMENT, AUTHORIZATION, AND MONITORING
CA-3(2) — Classified National Security System Connections
CMMC Practice Mapping
No direct CMMC mapping
NIST 800-171 Mapping
No direct NIST 800-171 mapping
Related Controls
No related controls listed
Practitioner Notes
This enhancement was incorporated into the base CA-3 control. It previously addressed connections involving classified national security systems.
Example 1: Connections to SIPRNet or other classified networks require formal approval through your agency's classified connection approval process with full documentation.
Example 2: Ensure any cross-domain solution between classified and unclassified networks is on the Unified Cross Domain Services Management Office (UCDSMO) approved products list.