NIST SP 800-53 Learning Center
Study this control family as a connected set of risk outcomes, implementation decisions, evidence expectations, and assessment questions.
Control family
Use the family as a planning boundary, but assess each selected control against the system context, inherited services, organization-defined parameters, and evidence available from real operations.
Family catalog
Base controls open full profiles. Enhancement results link directly to the corresponding enhancement section on the parent control page.
Physical and environmental protection policy and procedures address the controls in the PE family that are implemented within systems and organizations. The risk management strategy is an important factor in establishing such policies and procedures. Policies and procedures contribute to security and privacy assurance. Therefore, it is important that securit
Physical access authorizations apply to employees and visitors. Individuals with permanent physical access authorization credentials are not considered visitors. Authorization credentials include ID badges, identification cards, and smart cards. Organizations determine the strength of authorization credentials needed consistent with applicable laws, executiv
Physical access control applies to employees and visitors. Individuals with permanent physical access authorizations are not considered visitors. Physical access controls for publicly accessible areas may include physical access control logs/records, guards, or physical access devices and barriers to prevent movement from publicly accessible areas to non-pub
Security controls applied to system distribution and transmission lines prevent accidental damage, disruption, and physical tampering. Such controls may also be necessary to prevent eavesdropping or modification of unencrypted transmissions. Security controls used to control physical access to system distribution and transmission lines include disconnected o
Controlling physical access to output devices includes placing output devices in locked rooms or other secured areas with keypad or card reader access controls and allowing access to authorized individuals only, placing output devices in locations that can be monitored by personnel, installing monitor or screen filters, and using headphones. Examples of outp
Physical access monitoring includes publicly accessible areas within organizational facilities. Examples of physical access monitoring include the employment of guards, video surveillance equipment (i.e., cameras), and sensor devices. Reviewing physical access logs can help identify suspicious activity, anomalous events, or potential threats. The reviews can
NIST SP 800-53 PE-7 Visitor Control.
Visitor access records include the names and organizations of individuals visiting, visitor signatures, forms of identification, dates of access, entry and departure times, purpose of visits, and the names and organizations of individuals visited. Access record reviews determine if access authorizations are current and are still required to support organizat
Organizations determine the types of protection necessary for the power equipment and cabling employed at different locations that are both internal and external to organizational facilities and environments of operation. Types of power equipment and cabling include internal cabling and uninterruptable power sources in offices or data centers, generators and
Emergency power shutoff primarily applies to organizational facilities that contain concentrations of system resources, including data centers, mainframe computer rooms, server rooms, and areas with computer-controlled machinery.
An uninterruptible power supply (UPS) is an electrical system or mechanism that provides emergency power when there is a failure of the main power source. A UPS is typically used to protect computers, data centers, telecommunication equipment, or other electrical equipment where an unexpected power disruption could cause injuries, fatalities, serious mission
The provision of emergency lighting applies primarily to organizational facilities that contain concentrations of system resources, including data centers, server rooms, and mainframe computer rooms. Emergency lighting provisions for the system are described in the contingency plan for the organization. If emergency lighting for the system fails or cannot be
The provision of fire detection and suppression systems applies primarily to organizational facilities that contain concentrations of system resources, including data centers, server rooms, and mainframe computer rooms. Fire detection and suppression systems that may require an independent energy source include sprinkler systems and smoke detectors. An indep
The provision of environmental controls applies primarily to organizational facilities that contain concentrations of system resources (e.g., data centers, mainframe computer rooms, and server rooms). Insufficient environmental controls, especially in very harsh environments, can have a significant adverse impact on the availability of systems and system com
The provision of water damage protection primarily applies to organizational facilities that contain concentrations of system resources, including data centers, server rooms, and mainframe computer rooms. Isolation valves can be employed in addition to or in lieu of master shutoff valves to shut off water supplies in specific areas of concern without affecti
Enforcing authorizations for entry and exit of system components may require restricting access to delivery areas and isolating the areas from the system and media libraries.
Alternate work sites include government facilities or the private residences of employees. While distinct from alternative processing sites, alternate work sites can provide readily available alternate locations during contingency operations. Organizations can define different sets of controls for specific alternate work sites or types of sites depending on
Physical and environmental hazards include floods, fires, tornadoes, earthquakes, hurricanes, terrorism, vandalism, an electromagnetic pulse, electrical interference, and other forms of incoming electromagnetic radiation. Organizations consider the location of entry points where unauthorized individuals, while not being granted access, might nonetheless be n
Information leakage is the intentional or unintentional release of data or information to an untrusted environment from electromagnetic signals emanations. The security categories or classifications of systems (with respect to confidentiality), organizational security policies, and risk tolerance guide the selection of controls employed to protect systems ag
Asset location technologies can help ensure that critical assets—including vehicles, equipment, and system components—remain in authorized locations. Organizations consult with the Office of the General Counsel and senior agency official for privacy regarding the deployment and use of asset location technologies to address potential privacy concerns.
Role-based facility access includes access by authorized permanent and regular/routine maintenance personnel, duty officers, and emergency medical staff.
An electromagnetic pulse (EMP) is a short burst of electromagnetic energy that is spread over a range of frequencies. Such energy bursts may be natural or man-made. EMP interference may be disruptive or damaging to electronic equipment. Protective measures used to mitigate EMP risk include shielding, surge suppressors, ferro-resonant transformers, and earth
Acceptable forms of identification include passports, REAL ID-compliant drivers’ licenses, and Personal Identity Verification (PIV) cards. For gaining access to facilities using automated mechanisms, organizations may use PIV cards, key cards, PINs, and biometrics.
Hardware components that may require marking include input and output devices. Input devices include desktop and notebook computers, keyboards, tablets, and smart phones. Output devices include printers, monitors/video displays, facsimile machines, scanners, copiers, and audio devices. Permissions controlling output to the output devices are addressed in [AC
Individuals without required security clearances, access approvals, or need to know are escorted by individuals with appropriate physical access authorizations to ensure that information is not exposed or otherwise compromised.
Physical and environmental hazards include floods, fires, tornadoes, earthquakes, hurricanes, terrorism, vandalism, an electromagnetic pulse, electrical interference, and other forms of incoming electromagnetic radiation. The location of system components within the facility is addressed in [PE-18](#pe-18).
Control of physical access to the system provides additional physical security for those areas within facilities where there is a concentration of system components.
Organizations determine the extent, frequency, and/or randomness of security checks to adequately mitigate risk associated with exfiltration.
Employing guards at selected physical access points to the facility provides a more rapid response capability for organizations. Guards also provide the opportunity for human surveillance in areas of the facility not covered by video surveillance.
The greatest risk from the use of portable devices—such as smart phones, tablets, and notebook computers—is theft. Organizations can employ lockable, physical casings to reduce or eliminate the risk of equipment theft. Such casings come in a variety of sizes, from units that protect a single notebook computer to full cabinets that can protect multiple server
Organizations can implement tamper detection and prevention at selected hardware components or implement tamper detection at some components and tamper prevention at other components. Detection and prevention activities can employ many types of anti-tamper technologies, including tamper-detection seals and anti-tamper coatings. Anti-tamper programs help to d
NIST SP 800-53 enhancement PE-3(6) Facility Penetration Testing.
Physical barriers include bollards, concrete slabs, jersey walls, and hydraulic active vehicle barriers.
An access control vestibule is part of a physical access control system that typically provides a space between two sets of interlocking doors. Vestibules are designed to prevent unauthorized individuals from following authorized individuals into facilities with controlled access. This activity, also known as piggybacking or tailgating, results in unauthoriz
NIST SP 800-53 enhancement PE-5(1) Access to Output by Authorized Individuals.
Methods for linking individual identity to the receipt of output from output devices include installing security functionality on facsimile machines, copiers, and printers. Such functionality allows organizations to implement authentication on output devices prior to the release of output to individuals.
NIST SP 800-53 enhancement PE-5(3) Marking Output Devices.
Physical intrusion alarms can be employed to alert security personnel when unauthorized access to the facility is attempted. Alarm systems work in conjunction with physical barriers, physical access control systems, and security guards by triggering a response when these other forms of security have been compromised or breached. Physical intrusion alarms can
Response actions can include notifying selected organizational personnel or law enforcement personnel. Automated mechanisms implemented to initiate response actions include system alert notifications, email and text messages, and activating door locking mechanisms. Physical access monitoring can be coordinated with intrusion detection systems and system moni
Video surveillance focuses on recording activity in specified areas for the purposes of subsequent review, if circumstances so warrant. Video recordings are typically reviewed to detect anomalous events or incidents. Monitoring the surveillance video is not required, although organizations may choose to do so. There may be legal considerations when performin
Monitoring physical access to systems provides additional monitoring for those areas within facilities where there is a concentration of system components, including server rooms, media storage areas, and communications centers. Physical access monitoring can be coordinated with intrusion detection systems and system monitoring capabilities to provide compre
Visitor access records may be stored and maintained in a database management system that is accessible by organizational personnel. Automated access to such records facilitates record reviews on a regular basis to determine if access authorizations are current and still required to support organizational mission and business functions.
NIST SP 800-53 enhancement PE-8(2) Physical Access Records.
Organizations may have requirements that specify the contents of visitor access records. Limiting personally identifiable information in visitor access records when such information is not needed for operational purposes helps reduce the level of privacy risk created by a system.
Physically separate and redundant power cables ensure that power continues to flow in the event that one of the cables is cut or otherwise damaged.
Automatic voltage controls can monitor and control voltage. Such controls include voltage regulators, voltage conditioners, and voltage stabilizers.
NIST SP 800-53 enhancement PE-10(1) Accidental and Unauthorized Activation.
Provision of an alternate power supply with minimal operating capability can be satisfied by accessing a secondary commercial power supply or other external power supply.
The provision of a long-term, self-contained power supply can be satisfied by using one or more generators with sufficient capacity to meet the needs of the organization.
Organizations define their essential missions and functions.
Organizations can identify personnel, roles, and emergency responders if individuals on the notification list need to have access authorizations or clearances (e.g., to enter to facilities where access is restricted due to the classification or impact level of information within the facility). Notification mechanisms may require independent energy sources to
Organizations can identify specific personnel, roles, and emergency responders if individuals on the notification list need to have appropriate access authorizations and/or clearances (e.g., to enter to facilities where access is restricted due to the impact level or classification of information within the facility). Notification mechanisms may require inde
NIST SP 800-53 enhancement PE-13(3) Automatic Fire Suppression.
Authorized and qualified personnel within the jurisdiction of the organization include state, county, and city fire inspectors and fire marshals. Organizations provide escorts during inspections in situations where the systems that reside within the facilities contain sensitive information.
The implementation of automatic environmental controls provides an immediate response to environmental conditions that can damage, degrade, or destroy organizational systems or systems components.
The alarm or notification may be an audible alarm or a visual message in real time to personnel or roles defined by the organization. Such alarms and notifications can help minimize harm to individuals and damage to organizational assets by facilitating a timely incident response.
Automated mechanisms include notification systems, water detection sensors, and alarms.
NIST SP 800-53 enhancement PE-18(1) Facility Site.
Emissions Security (EMSEC) policies include the former TEMPEST policies.
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Planned Academy connection
These titles come from the approved NIST SP 800-53 course plan. They are shown as planned coverage and do not claim a public lesson URL before publication.
