NIST · Shared reference library

NIST SP 800-53 Rev. 5 Common Control Library

Browse 1,193 controls and enhancements across 20 security and privacy families. Use the GovRAMP crosswalk to locate controls referenced by Security Snapshot, Core, and Moderate.

A shared catalog supports common-control planning; designation as a common, hybrid, or system-specific control depends on your organization’s implementation and inheritance decisions.

Sources and crosswalk scope

NIST OSCAL content 5.1.1+u4, retrieved 2026-09-18. GovRAMP Snapshot v1.4 and Core selection from Moderate v1.06 reference the December 2020 Rev. 5 text. Mappings establish exact identifier correspondence, not identical requirements, inherited implementation, or GovRAMP authorization. GovRAMP parameters and additional requirements remain authoritative for each program. Full Moderate, High, and other programs are not mapped here. Withdrawn controls are retained for reference.

Official pinned NIST source

SHA-256: 81cf2de45ede9aef3de7ce09d65ea9d32f662c483bbf916f6e346292b22f7763

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2 matching controls · Page 1 of 1

System and Communications Protection · Base control

SC-32 · System Partitioning

Control statement and discussion

NIST control statement

Partition the system into [Assignment: system components] residing in separate [Selection (one): physical; logical] domains or environments based on [Assignment: circumstances for the physical or logical separation of components].

Discussion

System partitioning is part of a defense-in-depth protection strategy. Organizations determine the degree of physical separation of system components. Physical separation options include physically distinct components in separate racks in the same room, critical components in separate rooms, and geographical separation of critical components. Security categorization can guide the selection of candidates for domain partitioning. Managed interfaces restrict or prohibit network access and information flow among partitioned system components.

GovRAMP crosswalk

Not selected in the imported Snapshot or Core sets. This does not establish exclusion from other GovRAMP baselines.

System and Communications Protection · Enhancement

SC-32(1) · Separate Physical Domains for Privileged Functions

View parent control
Control statement and discussion

NIST control statement

Partition privileged functions into separate physical domains.

Discussion

Privileged functions that operate in a single physical domain may represent a single point of failure if that domain becomes compromised or experiences a denial of service.

GovRAMP crosswalk

Not selected in the imported Snapshot or Core sets. This does not establish exclusion from other GovRAMP baselines.