# NIST800 53 CA-2(1) — Independent Assessors

- Source: https://support.icompaas.com/support/solutions/articles/a_gen_nist80053_ca21_9b06c558df-nist800-53-ca-21-independent-assessors
- Section: [Solutions](https://support.icompaas.com/support/solutions) › [NIST](https://support.icompaas.com/support/solutions/62000112528) › [Assessment, Authorization, and Monitoring](https://support.icompaas.com/support/solutions/folders/f_gen_62000112528_assessmentauthorizationandmonitoring)
- Last updated: 2026-05-30
- Publisher: iCompaas, Inc. (https://www.icompaas.com)

NIST800 53 · Control CA-2(1) · Priority: high · Component: Assessment, Authorization, and Monitoring

### What this control covers

Employs independent assessors or teams to conduct control assessments, ensuring impartiality and credibility in evaluating control effectiveness. This control supports the Independent Assessment Team capability within the Assessment, Authorization, and Monitoring family.

### Why it matters

Risk is the language an executive team understands; this control connects technical reality to board-level decisions and budget allocation.

### How to implement

#### AWS

Codify the policy intent as **SCPs, AWS Config conformance packs, and Security Hub standards** so the cloud enforces what the document says.

#### Azure

Codify in **Azure Policy initiatives** (built-in regulatory compliance for CIS, ISO 27001, SOC 2, HIPAA) and assign at management-group level.

#### On-premises

Maintain a policy library with a documented review cadence (annual minimum); store in your GRC tool with attestation tracking. Map each policy to controls so an audit pull cites the exact policy clause.

### Evidence to collect

-   `policy_document` — A signed, version-controlled policy stating leadership intent and the named owner.

Signed policy or standard documents the safeguard. Focus: Independent Assessors.

### Quick checklist

-   Policy — Management / Authorization
-   Control — Management / Authorization
-   Independent — Management / Authorization
-   Authorization — Management / Authorization
-   Risk — Management / Authorization
-   Assessments — Management / Authorization

### Related articles on this site

-   [Ensure Diagnostic Setting captures appropriate categories from the control/management plane](https://support.icompaas.com/support/solutions/articles/62000219824--ensure-diagnostic-setting-captures-appropriate-categories-from-the-control-management-plane)
-   [Ensure to have backup access by someone on the team - could be part of "has retention" policy](https://support.icompaas.com/support/solutions/articles/62000229661-ensure-to-have-backup-access-by-someone-on-the-team-could-be-part-of-has-retention-policy)
-   [Use Cluster Access Manager API for Access Control Management](https://support.icompaas.com/support/solutions/articles/62000234198-use-cluster-access-manager-api-for-access-control-management)
-   [Ensure to Conduct Security Assessments](https://support.icompaas.com/support/solutions/articles/62000234519-ensure-to-conduct-security-assessments)

## Related compliance guidance

- [NIST SP 800-53 Rev. 5: a practical implementation guide for cloud teams](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5): How the 800-53 catalogue, baselines and the Risk Management Framework fit together, and which controls take the most work in the cloud.
- [NIST SP 800-171 and CMMC: a practical guide to protecting CUI in the cloud](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3): If the driver is a DoD or federal contract handling CUI, 800-171 (and CMMC) is the scope you actually need.