PPD-21

E1118258 UNEXPLORED

PPD-21 is a U.S. presidential directive that establishes national policy for strengthening the security and resilience of the nation’s critical infrastructure.

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All labels observed (2)

Label	Occurrences
PPD-21 canonical	1
PPD-8	1

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Presidential Policy Directive 21 → shortName → PPD-21 ⓘ

Presidential Policy Directive 8 → shortName → PPD-21 ⓘ

this entity surface form: PPD-8