NIST SP 800-53 Rev. 5 PM-7(1) — Offloading

What this control requires

Offload non-essential functions or services to other systems, components, or external providers to reduce the attack surface of mission-critical systems, improve efficiency, and leverage specialized expertise. This control supports the Offloading Service Management capability within the Program Management family.

In plain English

Offload non-essential functions or services to other systems, components, or external providers to reduce the attack surface of mission-critical systems, improve efficiency, and leverage specialized expertise. In practice, this means you can prove you policy 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.

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 Program Management, the assessor will trace your implementation back to the catalogue reference (Control PM-7(1)) and look for objective evidence on the latest two assessment cycles.

How to implement

Policy Management

Docs. Keep each policy in version-controlled Markdown alongside the code that implements it; ship a signed PDF snapshot at each annual review and link the SHA into the SoA.

Operational checklist

• Policy. Document the trigger, the owner and the cadence.
• Control. Document the trigger, the owner and the cadence.
• Service. Document the trigger, the owner and the cadence.
• Essential. Document the trigger, the owner and the cadence.
• Offload. Document the trigger, the owner and the cadence.
• Scope: management, mission, service, functions, components, services, capability, external providers.

Evidence to collect

• Policy Document. A signed and version-controlled policy / standard / procedure document.

Signed policy or standard documents the safeguard. Focus: Offloading.

Common pitfalls

• Policies that no engineer has read; the version in Confluence drifts from the version that's actually being enforced.

How it maps to other frameworks

Computed from shared tags, control component and key-operation subjects — handy when you are reconciling controls across an audit.

• NIST SP 800-171 Rev. 3 3.16.3 — External System Services
• SOC 2 (2017 TSC) PI1.1 — Processing Objectives & Information
• HIPAA (45 CFR Part 164) 164.308(a)(5)(i) — Security Awareness and Training

Related controls in NIST SP 800-53 Rev. 5

• Control SC-36(2) — Synchronization
• Control PM-32 — Purposing
• Control CP-7(4) — Preparation For Use
• Control MA-7 — Field Maintenance
• Control SA-4(4) — Assignment Of Components To Systems
• Control SA-8(1) — Clear Abstractions

References

• NIST Computer Security Resource Center — NIST SP 800-53 Rev. 5
• Catalogue identifier: Control PM-7(1)

Topics: governance riskpolicy management