PE-21

Requirement

Employ [Assignment: organization-defined protective measures] against electromagnetic pulse damage for [Assignment: organization-defined systems and system components].

Discussion

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 grounding. EMP protection may be especially significant for systems and applications that are part of the U.S. critical infrastructure.

NIST 800-53A Assessment Guidance

Examine

[SELECT FROM: Physical and environmental protection policy; procedures addressing protective measures to mitigate EMP risk to systems and components; documentation detailing protective measures to mitigate EMP risk; list of locations where protective measures to mitigate EMP risk are implemented; system security plan; other relevant documents or records].

Interview

[SELECT FROM: Organizational personnel with responsibilities for physical and environmental protection; system developers/integrators; organizational personnel with information security responsibilities].

ID	Assessment Objectives
PE-21	<PE-21_ODP[01] protective measures> are employed against electromagnetic pulse damage for <PE-21_ODP[02] system and system components>.

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