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 Withdrawn controls are retained for reference.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

Reset

8 matching controls · Page 1 of 1

Access Control · Base control

AC-5 · Separation of Duties

Control statement and discussion

NIST control statement

a. Identify and document [Assignment: duties of individuals] ; and b. Define system access authorizations to support separation of duties.

Discussion

Separation of duties addresses the potential for abuse of authorized privileges and helps to reduce the risk of malevolent activity without collusion. Separation of duties includes dividing mission or business functions and support functions among different individuals or roles, conducting system support functions with different individuals, and ensuring that security personnel who administer access control functions do not also administer audit functions. Because separation of duty violations can span systems and application domains, organizations consider the entirety of systems and system components when developing policy on separation of duties. Separation of duties is enforced through the account management activities in [AC-2](#ac-2) , access control mechanisms in [AC-3](#ac-3) , and identity management activities in [IA-2](#ia-2), [IA-4](#ia-4) , and [IA-12](#ia-12).

GovRAMP crosswalk

Identification and Authentication · Base control

IA-12 · Identity Proofing

Control statement and discussion

NIST control statement

a. Identity proof users that require accounts for logical access to systems based on appropriate identity assurance level requirements as specified in applicable standards and guidelines; b. Resolve user identities to a unique individual; and c. Collect, validate, and verify identity evidence.

Discussion

Identity proofing is the process of collecting, validating, and verifying a user’s identity information for the purposes of establishing credentials for accessing a system. Identity proofing is intended to mitigate threats to the registration of users and the establishment of their accounts. Standards and guidelines specifying identity assurance levels for identity proofing include [SP 800-63-3](#737513fa-6758-403f-831d-5ddab5e23cb3) and [SP 800-63A](#9099ed2c-922a-493d-bcb4-d896192243ff) . Organizations may be subject to laws, executive orders, directives, regulations, or policies that address the collection of identity evidence. Organizational personnel consult with the senior agency official for privacy and legal counsel regarding such requirements.

GovRAMP crosswalk

Identification and Authentication · Enhancement

IA-12(1) · Supervisor Authorization

View parent control
Control statement and discussion

NIST control statement

Require that the registration process to receive an account for logical access includes supervisor or sponsor authorization.

Discussion

Including supervisor or sponsor authorization as part of the registration process provides an additional level of scrutiny to ensure that the user’s management chain is aware of the account, the account is essential to carry out organizational missions and functions, and the user’s privileges are appropriate for the anticipated responsibilities and authorities within the organization.

GovRAMP crosswalk

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

Identification and Authentication · Enhancement

IA-12(2) · Identity Evidence

View parent control
Control statement and discussion

NIST control statement

Require evidence of individual identification be presented to the registration authority.

Discussion

Identity evidence, such as documentary evidence or a combination of documents and biometrics, reduces the likelihood of individuals using fraudulent identification to establish an identity or at least increases the work factor of potential adversaries. The forms of acceptable evidence are consistent with the risks to the systems, roles, and privileges associated with the user’s account.

GovRAMP crosswalk

Identification and Authentication · Enhancement

IA-12(3) · Identity Evidence Validation and Verification

View parent control
Control statement and discussion

NIST control statement

Require that the presented identity evidence be validated and verified through [Assignment: methods of validation and verification].

Discussion

Validation and verification of identity evidence increases the assurance that accounts and identifiers are being established for the correct user and authenticators are being bound to that user. Validation refers to the process of confirming that the evidence is genuine and authentic, and the data contained in the evidence is correct, current, and related to an individual. Verification confirms and establishes a linkage between the claimed identity and the actual existence of the user presenting the evidence. Acceptable methods for validating and verifying identity evidence are consistent with the risks to the systems, roles, and privileges associated with the users account.

GovRAMP crosswalk

Identification and Authentication · Enhancement

IA-12(4) · In-person Validation and Verification

View parent control
Control statement and discussion

NIST control statement

Require that the validation and verification of identity evidence be conducted in person before a designated registration authority.

Discussion

In-person proofing reduces the likelihood of fraudulent credentials being issued because it requires the physical presence of individuals, the presentation of physical identity documents, and actual face-to-face interactions with designated registration authorities.

GovRAMP crosswalk

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

Identification and Authentication · Enhancement

IA-12(5) · Address Confirmation

View parent control
Control statement and discussion

NIST control statement

Require that a [Selection (one): registration code; notice of proofing] be delivered through an out-of-band channel to verify the users address (physical or digital) of record.

Discussion

To make it more difficult for adversaries to pose as legitimate users during the identity proofing process, organizations can use out-of-band methods to ensure that the individual associated with an address of record is the same individual that participated in the registration. Confirmation can take the form of a temporary enrollment code or a notice of proofing. The delivery address for these artifacts is obtained from records and not self-asserted by the user. The address can include a physical or digital address. A home address is an example of a physical address. Email addresses and telephone numbers are examples of digital addresses.

GovRAMP crosswalk

Identification and Authentication · Enhancement

IA-12(6) · Accept Externally-proofed Identities

View parent control
Control statement and discussion

NIST control statement

Accept externally-proofed identities at [Assignment: identity assurance level].

Discussion

To limit unnecessary re-proofing of identities, particularly of non-PIV users, organizations accept proofing conducted at a commensurate level of assurance by other agencies or organizations. Proofing is consistent with organizational security policy and the identity assurance level appropriate for the system, application, or information accessed. Accepting externally-proofed identities is a fundamental component of managing federated identities across agencies and organizations.

GovRAMP crosswalk

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