---
kind: "unit"
title: "6"
title_heading: "Domestic Security"
key: "ch1/schIV"
level: "subchapter"
label: "Subchapter IV"
heading: "Border, Maritime, and Transportation Security"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/6/ch1-schIV"
sections_count: 66
---

# Subchapter IV — Border, Maritime, and Transportation Security

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

## Contents

- [Part A — Border, Maritime, and Transportation Security Responsibilities and Functions](/usc/6/ch1-schIV-ptA.md)
- [Part B — U.S. Customs and Border Protection](/usc/6/ch1-schIV-ptB.md)
- [Part C — Miscellaneous Provisions](/usc/6/ch1-schIV-ptC.md)
- [Part D — Immigration Enforcement Functions](/usc/6/ch1-schIV-ptD.md)
- [Part E — Citizenship and Immigration Services](/usc/6/ch1-schIV-ptE.md)
- [Part F — General Immigration Provisions](/usc/6/ch1-schIV-ptF.md)
- [Part G — U.S. Customs and Border Protection Public Private Partnerships](/usc/6/ch1-schIV-ptG.md)