PE.L1-3.10.3: Visitor Control — CMMC Level 1
Visitor control is a foundational physical security requirement under CMMC Level 1 that mandates organizations escort visitors and monitor their activity within facilities handling Controlled Unclassified Information (CUI). Unmonitored access poses data theft and insider threat risks. This control ensures your organization maintains visibility over who enters your space and what they access.
What this means
This control requires you to establish and enforce procedures that restrict visitor movement within your facility and maintain active oversight of visitor activities. Visitors must be escorted by authorized personnel and should not have unattended access to areas where CUI is stored, processed, or transmitted. The goal is to prevent unauthorized access to sensitive information and maintain a secure physical environment.
How to comply
- 1.Define visitor access policies that specify which areas visitors may enter and which require escort
- 2.Assign responsibility for escorting visitors—typically reception, security, or facility management
- 3.Log all visitor entries and exits with date, time, purpose, and escort name
- 4.Ensure escorts remain with visitors at all times in controlled areas
- 5.Conduct visitor briefings on security policies before granting access
- 6.Restrict visitor access to sensitive areas such as server rooms, network closets, or document storage
- 7.Train employees on visitor control procedures and escort responsibilities
- 8.Review and update visitor logs periodically to identify anomalies
- 9.Establish temporary badge or credential systems to visually identify visitors
Evidence auditors look for
- Visitor control policy document outlining escort requirements and access restrictions
- Visitor log entries showing date, time, purpose, visitor name, and authorized escort
- Badge or credential system records for temporary visitor identification
- Employee training records confirming staff understand visitor escort responsibilities
- Facility access maps showing restricted areas and escort-required zones
- Signed visitor agreements acknowledging security policies and access restrictions
- Incident reports or audit findings related to visitor access
- Security awareness training materials covering visitor management procedures
Frequently asked questions
When will FAQs be available?
The FAQ for this control is currently being prepared.
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