Diverse Supply Base
LOW MODERATE HIGHRequirements NIST SOURCE
Employ a diverse set of sources for the following system components and services: [organization-defined system components and services].
Discussion (NIST Supplemental Guidance)
Diversifying the supply of systems, system components, and services can reduce the probability that adversaries will successfully identify and target the supply chain and can reduce the impact of a supply chain event or compromise. Identifying multiple suppliers for replacement components can reduce the probability that the replacement component will become unavailable. Employing a diverse set of developers or logistics service providers can reduce the impact of a natural disaster or other supply chain event. Organizations consider designing the system to include diverse materials and components.
Implementation Guidance
Original engineering commentary written for this explorer — not NIST source text and not authoritative guidance.
No engineering interpretation has been authored for SR-3(1) 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
Assessment Objectives
- system components with a diverse set of sources are defined;
- services with a diverse set of sources are defined;
- a diverse set of sources is employed for <SR-03(01)_ODP[01] system components>;
- a diverse set of sources is employed for <SR-03(01)_ODP[02] services>.
Examine
[SELECT FROM: Supply chain risk management policy and procedures; system and services acquisition policy; planning policy; procedures addressing supply chain protection; physical inventory of critical systems and system components; inventory of critical suppliers, service providers, developers, and contracts; inventory records of critical system components; list of security safeguards ensuring an adequate supply of critical system components; 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 protection responsibilities].
Test
[SELECT FROM: Organizational processes for defining and employing security safeguards to ensure an adequate supply of critical system components; processes to identify critical suppliers; mechanisms supporting and/or implementing the security safeguards that ensure an adequate supply of critical system components].
Overlays
STIGs & CCIs
No STIG checks or CCI mappings are currently loaded for SR-3(1). 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
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
- system and services acquisition policy
- planning policy
- system security plan
Configuration
- physical inventory of critical systems and system components
- inventory of critical suppliers, service providers, developers, and contracts
- inventory records of critical system components
Testing
- Organizational processes for defining and employing security safeguards to ensure an adequate supply of critical system components
- processes to identify critical suppliers
- mechanisms supporting and/or implementing the security safeguards that ensure an adequate supply of critical system components
Other Records
- procedures addressing supply chain protection
- list of security safeguards ensuring an adequate supply of critical system components
- other relevant documents or records