# SA-09 External System Services — NIST 800-53 Rev5 control

> FedRAMP Consolidated Rules for 2026 v2026.07.14.01 · updated 2026-07-14
> Canonical page: /control/sa-9

Canonical id: `sa-9` · family `SA`

> a. Require that providers of external system services comply with organizational security and privacy requirements and employ the following controls: [controls]; b. Define and document organizational oversight and user roles and responsibilities with regard to external system services; and c. Employ the following processes, methods, and techniques to monitor control compliance by external service providers on an ongoing basis: [processes, methods, and techniques].

_Control title and statement: NIST SP 800-53 Rev5 catalog (the pinned commit is in `/api` under `control_text`). The FedRAMP rules reference these controls by id only; everything below is what FedRAMP says about this id._

## Rev5 baseline membership

- certification class B (in the annual independent assessment)
- certification class C (in the annual independent assessment)
- certification class D (in the annual independent assessment)

## Key Security Indicators that reach it

- `KSI-SCR-MIT` — Mitigating Supply Chain Risk (Supply Chain Risk)
  Persistently identify, review, and mitigate potential supply chain risks.
- `KSI-SCR-MON` — Monitoring Supply Chain Risk (Supply Chain Risk)
  Third party software information resources are automatically monitored for upstream vulnerabilities using mechanisms that may include contractual notification requirements or active monitoring services.

## FedRAMP guidance

_No FedRAMP-specific guidance attaches to this control._

## Annual independent assessment

In the annual assessment subset for class B, C, D.