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CA-6(2) CA · Assessment, Authorization, and Monitoring

Joint Authorization — Inter-organization

LOW MODERATE HIGH
1 Overlay 1 Related Control
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Requirements NIST SOURCE

Employ a joint authorization process for the system that includes multiple authorizing officials with at least one authorizing official from an organization external to the organization conducting the authorization.

Discussion (NIST Supplemental Guidance)

Assigning multiple authorizing officials, at least one of whom comes from an external organization, to serve as co-authorizing officials for the system increases the level of independence in the risk-based decision-making process. It implements the concepts of separation of duties and dual authorization as applied to the system authorization process. Employing authorizing officials from external organizations to supplement the authorizing official from the organization that owns or hosts the system may be necessary when the external organizations have a vested interest or equities in the outcome of the authorization decision. The inter-organization joint authorization process is relevant and appropriate for connected systems, shared systems or services, and systems with multiple information owners. The authorizing officials from the external organizations are key stakeholders of the system undergoing authorization.

Implementation Guidance

Engineering Interpretation

Original engineering commentary written for this explorer — not NIST source text and not authoritative guidance.

No engineering interpretation has been authored for CA-6(2) yet. This section is architected to receive it — see the Requirements and Assessment sections above for the authoritative NIST source content in the meantime.

Assessment

NIST SP 800-53A REV 5.2.0

Assessment Objectives

  1. a joint authorization process is employed for the system;
  2. the joint authorization process employed for the system includes multiple authorizing officials with at least one authorizing official from an organization external to the organization conducting the authorization.

Examine

[SELECT FROM: Assessment, authorization, and monitoring policy; procedures addressing authorization; system security plan; privacy plan; assessment report; plan of action and milestones; authorization statement; other relevant documents or records].

Interview

[SELECT FROM: Organizational personnel with authorization responsibilities; organizational personnel with information security and privacy responsibilities].

Test

[SELECT FROM: Mechanisms that facilitate authorizations and updates].

Overlays

Showing the OT/ICS overlay for the parent control CA-6 — see the CA-6(2) entries within each baseline below.

OT/ICS Overlay SP 800-82r3

NIST SP 800-82r3 Appendix F, Table 22. Blank baseline means the control/control enhancement is not selected in that initial OT baseline.

LOW

  • Base control: Included (matches standard baseline)

MODERATE

  • Base control: Included (matches standard baseline)

HIGH

  • Base control: Included (matches standard baseline)

STIGs & CCIs

No STIG checks or CCI mappings are currently loaded for CA-6(2). This section is architected to display, per product: STIG ID, Finding ID, Severity, Title, Description, Check, Fix, CCI, and NIST control mapping — but nothing is populated here until a real DISA STIG/CCI dataset is ingested.

Learn more about STIG/CCI integration →

Evidence

Potential Evidence — Derived

Categorized from the SP 800-53A "Examine"/"Test" artifact list above by keyword — not an authoritative NIST evidence list.

Policy

  • Assessment, authorization, and monitoring policy
  • system security plan
  • privacy plan
  • plan of action and milestones

Testing

  • Mechanisms that facilitate authorizations and updates

Other Records

  • procedures addressing authorization
  • assessment report
  • authorization statement
  • other relevant documents or records