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AC-05 Separation of Duties

NIST SP 800-53 (controls) 5.2.0 against 5.2.0
All changes in this version
unchanged AC Moderate baselineHigh baseline

Title

Separation of Duties

Control

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).

Parameters

ac-05_odp: duties of individuals

Related controls

ac-2, ac-3, ac-6, au-9, cm-11, cm-5, cp-9, ia-12, ia-2, ia-4, ia-5, ma-3, ma-5, ps-2, sa-17, sa-8

STIG rules that implement this control 0

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