PE-22: Component Marking
Control Family:
Baselines:
- Low
N/A
- Moderate
N/A
- High
N/A
- Privacy
N/A
- OT Low (SP 800-82r3)
N/A
- OT Moderate (SP 800-82r3)
- PE-22
- OT High (SP 800-82r3)
- PE-22
Control is new to this version of the control set and incorporates the following item from the previous version: PE-5(3): Marking Output Devices.
Control Statement
Mark [Assignment: organization-defined system hardware components] indicating the impact level or classification level of the information permitted to be processed, stored, or transmitted by the hardware component.
Supplemental Guidance
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-3 or AC-4 . Components are marked to indicate the impact level or classification level of the system to which the devices are connected, or the impact level or classification level of the information permitted to be output. Security marking refers to the use of human-readable security attributes. Security labeling refers to the use of security attributes for internal system data structures. Security marking is generally not required for hardware components that process, store, or transmit information determined by organizations to be in the public domain or to be publicly releasable. However, organizations may require markings for hardware components that process, store, or transmit public information in order to indicate that such information is publicly releasable. Marking of system hardware components reflects applicable laws, executive orders, directives, policies, regulations, and standards.
OT Discussion
Hardware components are marked or labeled to indicate information that is processed, stored, or transmitted. Component markings can be useful for differentiating between safety and control systems, OT and IT equipment, and internally and externally connected systems. Marking components reduces the probability of mismanaging the system or performing maintenance on an incorrect device.
OT Baseline Rationale
Rationale for adding to Mod, High baselines: OT is unique in that it may look like an IT component but perform a very different function. Visible differentiation between components that perform different functions can help reduce reliability incidents due to maintenance errors.