Subchapter IV - BORDER, MARITIME, AND TRANSPORTATION SECURITY
- Part A - BORDER, MARITIME, AND TRANSPORTATION SECURITY RESPONSIBILITIES AND FUNCTIONS (§§ 201 — 205)
- Part B - U.S. CUSTOMS AND BORDER PROTECTION (§§ 211 — 226)
- Part C - MISCELLANEOUS PROVISIONS (§§ 231 — 245)
- Part D - IMMIGRATION ENFORCEMENT FUNCTIONS (§§ 251 — 257)
- Part E - CITIZENSHIP AND IMMIGRATION SERVICES (§§ 271 — 279)
- Part F - GENERAL IMMIGRATION PROVISIONS (§§ 291 — 298)
- Part G - U.S. CUSTOMS AND BORDER PROTECTION PUBLIC PRIVATE PARTNERSHIPS (§§ 301 — 301c)