← SR-3
SR-3(3) SR · Supply Chain Risk Management

Sub-tier Flow Down

LOW MODERATE HIGH
1 Overlay 2 Related Controls
Graph
Export ▾

Requirements NIST SOURCE

Ensure that the controls included in the contracts of prime contractors are also included in the contracts of subcontractors.

Discussion (NIST Supplemental Guidance)

To manage supply chain risk effectively and holistically, it is important that organizations ensure that supply chain risk management controls are included at all tiers in the supply chain. This includes ensuring that Tier 1 (prime) contractors have implemented processes to facilitate the "flow down" of supply chain risk management controls to sub-tier contractors. The controls subject to flow down are identified in SR-3b.

Implementation Guidance

Engineering Interpretation

Original engineering commentary written for this explorer — not NIST source text and not authoritative guidance.

No engineering interpretation has been authored for SR-3(3) yet. This section is architected to receive it — see the Requirements and Assessment sections above for the authoritative NIST source content in the meantime.

Assessment

NIST SP 800-53A REV 5.2.0

Assessment Objectives

  1. the controls included in the contracts of prime contractors are also included in the contracts of subcontractors.

Examine

[SELECT FROM: Supply chain risk management policy and procedures; supply chain risk management plan; system and services acquisition policy; procedures addressing supply chain protection; acquisition documentation; service level agreements; acquisition contracts for the system, system component, or system service; inter-organizational agreements and procedures; system security plan; other relevant documents or records].

Interview

[SELECT FROM: Organizational personnel with system and services acquisition responsibilities; organizational personnel with information security responsibilities; organizational personnel with supply chain risk management responsibilities].

Test

[SELECT FROM: Organizational processes for establishing inter-organizational agreements and procedures with supply chain entities].

Overlays

Showing the OT/ICS overlay for the parent control SR-3 — see the SR-3(3) entries within each baseline below.

OT/ICS Overlay SP 800-82r3

NIST SP 800-82r3 Appendix F, Table 22. Blank baseline means the control/control enhancement is not selected in that initial OT baseline.

LOW

  • Base control: Included (matches standard baseline)

MODERATE

  • Base control: Included (matches standard baseline)

HIGH

  • Base control: Included (matches standard baseline)

STIGs & CCIs

No STIG checks or CCI mappings are currently loaded for SR-3(3). This section is architected to display, per product: STIG ID, Finding ID, Severity, Title, Description, Check, Fix, CCI, and NIST control mapping — but nothing is populated here until a real DISA STIG/CCI dataset is ingested.

Learn more about STIG/CCI integration →

Evidence

Potential Evidence — Derived

Categorized from the SP 800-53A "Examine"/"Test" artifact list above by keyword — not an authoritative NIST evidence list.

Policy

  • Supply chain risk management policy and procedures
  • supply chain risk management plan
  • system and services acquisition policy
  • system security plan

Testing

  • Organizational processes for establishing inter-organizational agreements and procedures with supply chain entities

Other Records

  • procedures addressing supply chain protection
  • acquisition documentation
  • service level agreements
  • acquisition contracts for the system, system component, or system service
  • inter-organizational agreements and procedures
  • other relevant documents or records