Title 6 — Domestic Security
- Chapter I Department of Homeland Security, Office of the Secretary
- Part 3 – Petitions for Rulemaking
- Part 5 – Disclosure of Records and Information
- Part 7 – Classified National Security Information
- Part 9 – Restrictions Upon Lobbying
- Part 11 – Claims
- Part 13 – Administrative Remedies for False Claims and Statements
- Part 15 – Enforcement of Nondiscrimination on the Basis of Disability in Programs or Activities Conducted by the Department of Homeland Security
- Part 17 – Nondiscrimination on the Basis of Sex in Education Programs or Activities Receiving Federal Financial Assistance
- Part 19 – Nondiscrimination in Matters Pertaining to Faith-Based Organizations
- 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
- Part 25 – Regulations to Support Anti-Terrorism by Fostering Effective Technologies
- Part 27 – Chemical Facility Anti-Terrorism Standards
- Part 29 – Protected Critical Infrastructure Information
- Part 37 – Real ID Driver's Licenses and Identification Cards
- Part 46 – Protection of Human Subjects
- Part 115 – Sexual Abuse and Assault Prevention Standards
- Part 124 – Counter-Unmanned Aircraft System Authority for State, Local, Tribal, and Territorial Law Enforcement and Correctional Agencies
- Part 126 – Transportation Security Oversight Board Review Panel Process and Procedures
- Part 139 – Conduct on Federal Property
- Part 158 – Cybersecurity Talent Management System (CTMS)
- Chapter X Privacy and Civil Liberties Oversight Board
- Part 1000 – Organization and Delegation of Powers and Duties of the Privacy and Civil Liberties Oversight Board
- Part 1001 – Procedures for Disclosure of Records Under the Freedom of Information Act
- Part 1002 – Implementation of the Privacy Act of 1974
- Part 1003 – Implementation of the Government in the Sunshine Act