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Federal statute

Homeland Security Act of 2002

In plain terms. The Homeland Security Act of 2002 created the Department of Homeland Security and consolidated numerous agencies and functions, including critical-infrastructure protection and cybersecurity coordination. It is the statut…

Last reviewedJune 7, 2026Version v1

In plain terms. The Homeland Security Act of 2002 created the Department of Homeland Security and consolidated numerous agencies and functions, including critical-infrastructure protection and cybersecurity coordination. It is the statutory lineage of the Cybersecurity and Infrastructure Security Agency (CISA), the federal lead for civilian cyber defense.

Citation. Pub. L. 107-296 (Nov. 25, 2002); 6 U.S.C. ch. 1.