NIST SP 800-53 Rev. 5 SC-36 — Distributed Processing And Storage

What this control requires

Distribute processing and storage components across multiple physical locations or logical domains to increase redundancy and overlap. This distribution raises the work factor for adversaries attempting to disrupt organizational operations or assets. It allows for parallel processing and storage, reducing reliance on a single primary location. This control supports the Distributed Processing and Storage System capability within the System and Communications Protection family.

In plain English

Distribute processing and storage components across multiple physical locations or logical domains to increase redundancy and overlap. 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.

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 System and Communications Protection, the assessor will trace your implementation back to the catalogue reference (Control SC-36) and look for objective evidence on the latest two assessment cycles.

How to implement

Physical Security

Inheritance. For cloud-only operations, inherit physical controls from the provider's SOC 2 / ISO 27001 report and document the inheritance in the SoA.

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.
• 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.
• Storage. Document the trigger, the owner and the cadence.
• Scope: management, domains, system, location, protection, components, capability, operations.

Evidence to collect

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

Signed policy or standard documents the safeguard. Focus: Distributed Processing And Storage.

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 3.4.11 — Information Location
• ISO/IEC 27001:2022 A.7.3 — Securing offices, rooms and facilities
• HIPAA (45 CFR Part 164) 164.308(a)(5)(i) — Security Awareness and Training
• BSI C5:2020 SP-01 — Documentation, communication and provision of policies and instructions

Related controls in NIST SP 800-53 Rev. 5

• Control SC-46 — Cross Domain Policy Enforcement
• Control SC-32 — System Partitioning
• Control SC-16(2) — Anti-Spoofing Mechanisms
• Control SC-29 — Heterogeneity
• Control SC-30(3) — Change Processing And Storage Locations
• Control SC-49 — Hardware-Enforced Separation And Policy Enforcement

References

• NIST Computer Security Resource Center — NIST SP 800-53 Rev. 5
• Catalogue identifier: Control SC-36

Topics: governance riskphysical securitypolicy management