---
kind: "unit"
title: "6"
title_heading: "Domestic Security"
key: "chI"
level: "chapter"
label: "Chapter I"
heading: "Department of Homeland Security, Office of the Secretary"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/6/chI"
sections_count: 552
---

# Chapter I — Department of Homeland Security, Office of the Secretary

Title 6 C.F.R. — Domestic Security

## Contents

- [Part 1-2 — Parts 1-2 [reserved]](/cfr/6/chI-part1-2.md)
- [Part 3 — Petitions for Rulemaking](/cfr/6/chI-part3.md)
- [Part 4 — Part 4 [reserved]](/cfr/6/chI-part4.md)
- [Part 5 — Disclosure of Records and Information](/cfr/6/chI-part5.md)
- [Part 7 — Classified National Security Information](/cfr/6/chI-part7.md)
- [Part 9 — Restrictions Upon Lobbying](/cfr/6/chI-part9.md)
- [Part 11 — Claims](/cfr/6/chI-part11.md)
- [Part 13 — Administrative Remedies for False Claims and Statements](/cfr/6/chI-part13.md)
- [Part 15 — Enforcement of Nondiscrimination on the Basis of Disability in Programs or Activities Conducted by the Department of Homeland Security](/cfr/6/chI-part15.md)
- [Part 17 — Nondiscrimination on the Basis of Sex in Education Programs or Activities Receiving Federal Financial Assistance](/cfr/6/chI-part17.md)
- [Part 19 — Nondiscrimination in Matters Pertaining to Faith-Based Organizations](/cfr/6/chI-part19.md)
- [Part 21 — Nondiscrimination on the Basis of Race, Color, or National Origin in Programs or Activities Receiving Federal Financial Assistance from the Department of Homeland Security](/cfr/6/chI-part21.md)
- [Part 25 — Regulations to Support Anti-Terrorism by Fostering Effective Technologies](/cfr/6/chI-part25.md)
- [Part 27 — Chemical Facility Anti-Terrorism Standards](/cfr/6/chI-part27.md)
- [Part 29 — Protected Critical Infrastructure Information](/cfr/6/chI-part29.md)
- [Part 37 — Real Id Driver's Licenses and Identification Cards](/cfr/6/chI-part37.md)
- [Part 46 — Protection of Human Subjects](/cfr/6/chI-part46.md)
- [Part 115 — Sexual Abuse and Assault Prevention Standards](/cfr/6/chI-part115.md)
- [Part 124 — Counter-Unmanned Aircraft System Authority for State, Local, Tribal, and Territorial Law Enforcement and Correctional Agencies](/cfr/6/chI-part124.md)
- [Part 126 — Transportation Security Oversight Board Review Panel Process and Procedures](/cfr/6/chI-part126.md)
- [Part 139 — Conduct on Federal Property](/cfr/6/chI-part139.md)
- [Part 158 — Cybersecurity Talent Management System (ctms)](/cfr/6/chI-part158.md)
- [Part 159-199 — Parts 159-199 [reserved]](/cfr/6/chI-part159-199.md)