# NIST800 53 PT-3 — Personally Identifiable Information Processing Purposes

- Source: https://support.icompaas.com/support/solutions/articles/a_gen_nist80053_pt3_f1b7ff3435-nist800-53-pt-3-personally-identifiable-information-processing-purposes
- Section: [Solutions](https://support.icompaas.com/support/solutions) › [NIST](https://support.icompaas.com/support/solutions/62000112528) › [Purpose Identification and Processing Controls](https://support.icompaas.com/support/solutions/folders/f_gen_62000112528_purposeidentificationandprocessingcontrols)
- Last updated: 2026-05-30
- Publisher: iCompaas, Inc. (https://www.icompaas.com)

NIST800 53 · Control PT-3 · Priority: high · Component: Purpose Identification and Processing Controls

### What this control covers

Identify, document, and restrict the processing of personally identifiable information (PII) to only that which is compatible with defined purposes. Ensure that the processing aligns with privacy policies and is communicated in public notices, with changes in processing monitored and aligned with organizational requirements.

### 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.

#### Google Workspace

Use **Data Export** (Takeout-style) and **Vault search** to scope DSARs. Apply **Drive labels + DLP** so personal data classes are discoverable.

#### 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: Personally Identifiable Information Processing Purposes.

### Quick checklist

-   Policy — Management / Information
-   Restrict — Management / Information
-   Information — Management / Information
-   Changes — Management / Information
-   Identify — Management / Information
-   Identification — Management / Information

### Related articles on this site

-   [Ensure Restrict Artifact Decryption to Authorized Platforms Only](https://support.icompaas.com/support/solutions/articles/62000234950-ensure-restrict-artifact-decryption-to-authorized-platforms-only)
-   [Ensure Restrict Access to Build Environments to Authorized Personnel Only](https://support.icompaas.com/support/solutions/articles/62000235037-ensure-restrict-access-to-build-environments-to-authorized-personnel-only)
-   [Ensure IAM password policy requires at least one uppercase letter](https://support.icompaas.com/support/solutions/articles/62000080729-ensure-iam-password-policy-requires-at-least-one-uppercase-letter)
-   [Ensure IAM password policy require at least one lowercase letter](https://support.icompaas.com/support/solutions/articles/62000080758-ensure-iam-password-policy-require-at-least-one-lowercase-letter)

## 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.