What this requirement asks
Ensure that the actions of individual system users can be uniquely traced to those users so they can be held accountable for their actions.
This is a CMMC Level 2 requirement in the Audit & Accountability family, drawn from NIST SP 800-171 Rev. 2. An assessor evaluates it objective by objective — every objective below must be supported by evidence, not just described in a policy.
Assessment objectives (2)
- 3.3.2[a] — the content of the audit records needed to support the ability to uniquely trace users to their actions is defined
- 3.3.2[b] — audit records, once created, contain the defined content
What an assessor examines
Examine:
- Audit and accountability policy
- procedures addressing audit records and event types
- system security plan
- system design documentation
- system configuration settings and associated documentation
- procedures addressing audit record generation
- procedures addressing audit review, analysis, and reporting
- reports of audit findings
- system audit logs and records
- system events
- system incident reports
- other relevant documents or records
Interview:
- Personnel with audit and accountability responsibilities
- personnel with information security responsibilities
- system or network administrators
Test:
- Mechanisms implementing system audit logging
Evidence that defends it
Provide sample logs showing user IDs across systems
Check your readiness
Score this requirement against your own environment with the Level 2 self-assessment checklist, or estimate your SPRS score with the free CMMC compliance tool. Self-reported answers are planning signals only — they do not establish a verified or assessor-accepted result.