CSF Identifiers

Function Unique Identifier	Function	Category Unique Identifier	Category
ID	Identify	ID.AM	Asset Management
		ID.BE	Business Environment
Security Protection Assets	Assets that provide security functions or capabilities to the contractor's CMMC Assessment Scope, irrespective of whether or not these assets process, store, or transmit CUI
Contractor Risk Managed Assets	Assets that can, but are not intended to, process, store, or transmit CUI because of security policy, procedures, and practices in place Assets are not required to be physically or logically separated from CUI assets	Document in the asset inventory Document in the SSP Show these assets are managed using the contractor’s risk-based security policies, procedures, and practices Document in the network diagram of the CMMC Assessment Scope	Review the SSP in accordance with practice CA.L2-3.12.4 If appropriately documented, do not assess against other CMMC practices If contractor’s risk-based security policies, procedures, and practices documentation or other findings raise questions about these assets, the assessor can conduct a limited spot check to identify risks The limited spot check(s) shall not materially increase the assessment duration nor the assessment cost The limited spot check(s) will be within the defined assessment scope
Specialized Assets	Assets that may or may not process, store, or transmit CUI Assets include: government property, Internet of Things (IoT) devices, Operational Technology (OT), Restricted Information Systems, and Test Equipment		Review the SSP in accordance with practice CA.L2-3.12.4 Do not assess against other CMMC practices
Assets that are not in the CMMC Assessment Scope
Out-of-Scope Assets	Assets that cannot process, store, or transmit CUI	Assets are required to be physically or logically separated from CUI assets	None