CMMC Practice RM.4.148
Develop and update as required, a plan for managing supply chain risks associated with the IT supply chain.
Bold Coast Security Guidance
For Level 4 compliance, practice, policy and management plan must be included in a formal documented monitoring and measurement plan to ensure supply chain risk controls are working as designed and intended.
DRAFT NIST SP 800-171B
The growing dependence on products, systems, and services from external providers, along with the nature of the relationships with those providers, present an increasing level of risk to an organization. Threat actions that may increase risk include the insertion or use of counterfeits, unauthorized production, tampering, theft, insertion of malicious software and hardware, as well as poor manufacturing and development practices in the supply chain. Supply chain risks can be endemic or systemic within a system element or component, a system, an organization, a sector, or the Nation. Managing supply chain risk is a complex, multifaceted undertaking requiring a coordinated effort across an organization building trust relationships and communicating with both internal and external stakeholders. Supply chain risk management (SCRM) activities involve identifying and assessing risks, determining appropriate mitigating actions, developing SCRM plans to document selected mitigating actions, and monitoring performance against plans. SCRM plans address requirements for developing trustworthy secure and resilient system components and systems, including the application of the security design principles implemented as part of life cycle-based systems security engineering processes. NIST SP 800- 61 provides guidance
on supply chain risk management.