LLMResponse CM.L2-3.4.3.b

I'll help you evaluate how to best collect evidence for the assessment objective "[b] changes to the system are reviewed" within CM.L2-3.4.3. Based on the CMMC Level 2 Assessment Guide and your assessment approaches, I'll rank the evidence types and prioritize assessment approaches.

Evidence Types Ranking for "[b] changes to the system are reviewed"

1. **Artifacts (I1)** - Highest priority evidence type because it provides direct proof that changes are being reviewed:

  - Completed change request forms with reviewer comments/annotations
  - Change review documentation with signatures or electronic approvals
  - Meeting minutes from Change Advisory Board sessions
  - Review checklists with completed entries
  - Email threads or collaboration tool discussions showing review activities

2. **Documents (I2)** - Second most valuable evidence type:

  - Configuration management policy that mandates review of changes
  - Review procedures and criteria for system changes
  - Change management plan defining review responsibilities and processes
  - Role descriptions that identify change review responsibilities
  - Templates for change review documentation

3. **Screen Share (I4)** - Valuable for demonstrating the review process in action:

  - Live display of a change review workflow
  - Demonstration of how reviews are documented in your change management system
  - Showing historical records of reviewed changes

4. **Physical Review (I3)** - Lower priority for this objective but still relevant:

  - Observation of a Change Advisory Board meeting
  - Reviewing physical change control documentation with review notations
  - Physical evidence of review meetings (e.g., whiteboards, printed materials with review comments)

Assessment Approach Prioritization

1. **Examine (C1)** - Primary approach because:

  - It allows direct inspection of review documentation
  - You can verify patterns of consistent review across multiple changes
  - It demonstrates the organization's commitment to formal change reviews
  - Key assessment objects: change control audit and review reports, agenda/minutes from configuration change control oversight meetings, configuration management plan

2. **Interview (C2)** - Second priority for this objective:

  - Helps establish how review processes work in practice
  - Confirms understanding of review responsibilities
  - Reveals details about review criteria and decision-making
  - Key personnel: members of change control board or similar, personnel with configuration change control responsibilities

3. **Test (C3)** - Third priority but still important:

  - Verify that review processes are functioning as intended
  - Test that changes can't bypass review requirements
  - Validate that review documentation is properly maintained
  - Key assessment objects: organizational processes for configuration change control

Practical Implementation Strategy

For optimal assessment of "[b] changes to the system are reviewed":

1. Start by examining review documentation:

  - Change Advisory Board minutes
  - Completed review forms for recent system changes
  - Evidence of technical assessments during reviews
  - Documentation showing that reviews consider security implications

2. Interview key personnel involved in change reviews:

  - Change Advisory Board members
  - Technical reviewers
  - Change managers
  - Ask about review criteria, thoroughness, and how security concerns are addressed

3. Test the review process by:

  - Following a sample change through the review workflow
  - Verifying that reviews cover technical, operational, and security aspects
  - Confirming that review documentation is properly stored and retrievable

This comprehensive approach will provide strong evidence that your organization is meeting the requirement for reviewing changes to organizational systems, which is essential for CMMC Level 2 compliance.