NIST 800-53 · Rev 5Reference standard · cross-referenced from CMMC Full text with a free accountAC · Access Control

AC-20(2)

Use of External Systems | Portable Storage Devices — Restricted Use

Control text

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NIST 800-171 · Rev 3

03.01.20Use of External Systems
“Source control” about 03.01.20 · NIST SP 800-171 Rev 3 (OSCAL), control 03.01.20 link rel=reference (AC-20(02))

NIST 800-53 · Rev 4

AC-20 (2)USE OF EXTERNAL INFORMATION SYSTEMS | PORTABLE STORAGE DEVICES
“Changes title Changes control text Removes parameter Adds parameter” about AC-20 (2) · NIST SP 800-53 Rev 4 → Rev 5 comparison, sheet "Rev4 Rev5 Compared" row 137