• Requirement

    Escort visitors and monitor visitor activity.

  • Discussion

    Individuals with permanent physical access authorization credentials are not considered visitors. Audit logs can be used to monitor visitor activity.

More Info

  • Title

    Escort Visitors (CUI)
  • Domain

    Physical Protection
  • CMMC Level

  • Further Discussion

    Do not allow visitors, even those people you know well, to walk around your facility without an escort. Make sure that all non-employees wear special visitor badges and/or are escorted by an employee at all times while on the property.


    Coming back from a meeting, you see the friend of a coworker walking down the hallway near your office. You know this person well and trust them, but are not sure why they are in the building. You stop to talk, and the person explains that they are meeting a coworker for lunch, but cannot remember where the lunchroom is. You walk the person back to the reception area to get a visitor badge and wait until someone can escort them to the lunch room [a]. You report this incident and the company decides to install a badge reader at the main door so visitors cannot enter without an escort [a].

    Potential Assessment Considerations

    • Are personnel required to accompany visitors to areas in a facility with physical access to organizational systems [a]?
    • Are visitors clearly distinguishable from regular personnel [b]?
    • Is visitor activity monitored (e.g., use of cameras or guards, reviews of secure areas upon visitor departure, review of visitor audit logs) [b]?

NIST 800-171A Assessment Guidance

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