LLMResponse CM.L2-3.4.5.b

For assessment objective [b] physical access restrictions associated with changes to the system are documented, I'll rank the evidence types and prioritize assessment approaches based on the CMMC Level 2 Assessment Guide.

Assessment for Objective [b]: Physical access restrictions associated with changes to the system are documented

Evidence Types Ranking (Most to Least Valuable)

1. **Documents**: Primary evidence

  - Physical access approval forms
  - Change control records
  - Configuration management plan
  - Access control documentation
  - System security plan with physical access procedures

2. **Artifacts**: Strong supporting evidence

  - Access control lists
  - Change management logs
  - Documentation of physical access procedures
  - Security requirement templates

3. **Screen Share**: Useful but secondary

  - View electronic documentation systems
  - Observe change management documentation systems
  - See how physical access restrictions are recorded

4. **Physical Review**: Limited value for documentation verification

  - Might show documentation posted at physical access points
  - Generally less relevant for proving documentation exists

Assessment Approach Priority

1. **Examine** (Primary approach)

  - Review physical access approvals and change control records
  - Verify system security plan includes physical access restrictions
  - Check configuration management documentation for physical access controls
  - Ensure documentation exists for server room access, datacenter entry, etc.
  - Look for documented processes for tracking authorized physical access

2. **Interview** (Valuable supplement)

  - Speak with physical security personnel
  - Talk with system administrators about documentation practices
  - Verify personnel understand documentation requirements
  - Confirm documentation processes are followed consistently

3. **Test** (Limited applicability)

  - Least relevant for verifying documentation exists
  - Could verify referenced documents are accessible
  - More relevant for enforcement than documentation verification

For this objective, focus primarily on examining formal documentation to ensure physical access restrictions are properly documented. Interviews can confirm understanding of documentation requirements, while testing has limited value for this specific objective.