PE-3: Physical Access Control

From NIST's SP800-53:

a. Enforce physical access authorizations at [Assignment: organization-defined entry and exit points to the facility where the system resides] by: 1. Verifying individual access authorizations before granting access to the facility; and 2. Controlling ingress and egress to the facility using [Selection (one or more): [Assignment: organization-defined physical access control systems or devices]; guards]; b. Maintain physical access audit logs for [Assignment: organization-defined entry or exit points]; c. Control access to areas within the facility designated as publicly accessible by implementing the following controls: [Assignment: organization-defined physical access controls]; d. Escort visitors and control visitor activity [Assignment: organization-defined circumstances requiring visitor escorts and control of visitor activity]; e. Secure keys, combinations, and other physical access devices; f. Inventory [Assignment: organization-defined physical access devices] every [Assignment: organization-defined frequency]; and g. Change combinations and keys [Assignment: organization-defined frequency] and/or when keys are lost, combinations are compromised, or when individuals possessing the keys or combinations are transferred or terminated.