# NIST SP 800-53 Rev. 5 PE-3 — Physical Access Control

- Source: https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/pe-3-physical-access-control
- Section: [Compliance](https://support.icompaas.com/compliance) › [NIST SP 800-53 Rev. 5 Controls](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5) › PE — Physical and Environmental Protection
- Last updated: 2026-06-05
- Publisher: iCompaas, Inc. (https://www.icompaas.com)

**NIST SP 800-53 Rev. 5**·Control `PE-3`·high·Component: **Physical and Environmental Protection**

## What this control requires

> Enforce access at entry/exit points, maintain audit logs, control public areas, escort visitors, secure access devices, inventory devices, and update keys/combinations as needed. This control supports the Physical Access Control System capability within the Physical and Environmental Protection family.
> 
> — NIST SP 800-53 Rev. 5, Control PE-3

### In plain English

Enforce access at entry/exit points, maintain audit logs, control public areas, escort visitors, secure access devices, inventory devices, and update keys/combinations as needed. In practice, this means you can prove you access management-level controls on a defined cadence.

## Why it matters

SP 800-53 is the catalogue every U.S. federal authorisation (FedRAMP, FISMA, CMMC) and most regulated industries point at. A missing control surfaces as a Plan of Action & Milestones (POA&M) item that an Authorizing Official must approve before the Authority To Operate is granted or renewed.

This control is rated **high**. Auditors expect a named owner, a remediation SLA, and a tooling artefact that evidences continuous operation.

## What an auditor looks for

A 3PAO (FedRAMP) or Independent Assessor (NIST RMF) tests against NIST SP 800-53A assessment procedures. For each control they expect a documented implementation that addresses every assessment objective (Examine, Interview, Test) and an implementation summary in the System Security Plan.

Within **Physical and Environmental Protection**, the assessor will trace your implementation back to the catalogue reference (Control PE-3) and look for objective evidence on the latest two assessment cycles.

## How to implement

#### Endpoint Protection

**MDM.** Make MDM enrollment a hard gate for device access (Intune compliance + Conditional Access, or Jamf + Okta device trust). Unmanaged devices simply don't get a session token.

**EDR.** Deploy CrowdStrike / SentinelOne / Defender for Endpoint to every server and laptop; alert on any host that stops sending telemetry for >24h.

#### Asset Inventory

**AWS.** AWS Config Aggregator across every account + region gives a real-time inventory; ship the daily snapshot to S3 and surface drift in Security Hub.

**Azure.** Azure Resource Graph plus Defender for Cloud's inventory blade enumerates every subscription; export to Log Analytics for retention and Workbooks for reporting.

**GCP.** Cloud Asset Inventory exports a daily feed of every resource and IAM binding; query via BigQuery and alert on appearance/disappearance.

**Endpoints.** Pipe MDM telemetry (Intune / Jamf / Workspace ONE) into your CMDB so laptops and phones are inventoried with the same rigour as cloud resources.

#### Logging Monitoring

**AWS.** Org-trail CloudTrail to a central log archive account, GuardDuty in every region, and Security Hub for cross-source correlation.

**Azure.** Pipe every diagnostic setting into a central Log Analytics workspace; onboard Microsoft Sentinel for SIEM/SOAR.

**GCP.** Aggregate audit logs in a dedicated logging project with sink to BigQuery; enable Security Command Center Premium and route findings to Chronicle SIEM.

### Operational checklist

-   **Access.** Document the trigger, the owner and the cadence.
-   **Audit.** Document the trigger, the owner and the cadence.
-   **Security.** Document the trigger, the owner and the cadence.
-   **Physical.** Document the trigger, the owner and the cadence.
-   **Protection.** Document the trigger, the owner and the cadence.
-   **Scope:** management, access control, system, protection, capability, physical access, entry, inventory.

## Evidence to collect

-   **User Device Scan.** MDM compliance state per user device (Intune / Jamf / Workspace ONE).

Endpoint compliance telemetry (Intune, Jamf) proves managed coverage. Focus: Physical Access Control.

## Common pitfalls

-   Pilot MDM rollouts that quietly exclude executives or engineers; carving out the highest-risk users is the most common audit failure.
-   Inventories that exclude SaaS, shadow IT and ephemeral cloud resources (Lambda, Cloud Run, K8s pods) miss the assets where most modern incidents start.
-   Per-account logging that nobody stitches together at the org level — incidents that cross accounts go undetected for days.

## Related controls in NIST SP 800-53 Rev. 5

-   [**Control AT-3(2)** — Physical Security Controls](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/at-3-2-physical-security-controls)
-   [**Control PE-3(4)** — Lockable Casings](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/pe-3-4-lockable-casings)
-   [**Control AC-19** — Access Control For Mobile Devices](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/ac-19-access-control-for-mobile-devices)
-   [**Control PE-2(2)** — Two Forms Of Identification](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/pe-2-2-two-forms-of-identification)
-   [**Control AC-17(1)** — Monitoring And Control](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/ac-17-1-monitoring-and-control)
-   [**Control AC-7(2)** — Purge Or Wipe Mobile Device](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/ac-7-2-purge-or-wipe-mobile-device)

## References

-   [NIST Computer Security Resource Center — NIST SP 800-53 Rev. 5](https://csrc.nist.gov/Projects/risk-management/sp800-53-controls)
-   Catalogue identifier: `Control PE-3`

Topics: endpoint securityphysical securityendpoint protectionasset inventorylogging monitoringpatch management

## 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): Start with the full NIST SP 800-53 implementation guide — scope, roadmap, evidence and how the assessment runs.
- [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 your obligation is protecting CUI in your own systems for a federal or defence contract, this derived subset — not the full catalogue — is the requirement.
- [SOC 2 compliance: a practical implementation guide for cloud-native SaaS teams](https://support.icompaas.com/compliance/soc-2-trust-services-criteria): Most commercial SaaS already hold a SOC 2 Type 2, and FedRAMP 20x Class A is designed for providers that have one.