---
kind: "unit"
title: "6"
title_heading: "Domestic Security"
key: "ch1/schXVIII"
level: "subchapter"
label: "Subchapter XVIII"
heading: "Cybersecurity and Infrastructure Security Agency"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/6/ch1-schXVIII"
sections_count: 51
---

# Subchapter XVIII — Cybersecurity and Infrastructure Security Agency

Title 6 — Domestic Security › Chapter 1 — Homeland Security Organization

## Sections

- [§650. Definitions](/usc/6/650.md)

## Contents

- [Part A — Cybersecurity and Infrastructure Security](/usc/6/ch1-schXVIII-ptA.md)
- [Part B — Critical Infrastructure Information](/usc/6/ch1-schXVIII-ptB.md)
- [Part C — Declaration of a Significant Incident](/usc/6/ch1-schXVIII-ptC.md)
- [Part D — Cyber Incident Reporting](/usc/6/ch1-schXVIII-ptD.md)