Subchapter IV. BORDER, MARITIME, AND TRANSPORTATION SECURITY
- PART A [§ 201 - § 205] - Border, Maritime, and Transportation Security Responsibilities and Functions
- PART B [§ 211 - § 226] - U.S. Customs and Border Protection
- PART C [§ 231 - § 245] - Miscellaneous Provisions
- PART D [§ 251 - § 258] - Immigration Enforcement Functions
- PART E [§ 271 - § 279] - Citizenship and Immigration Services
- PART F [§ 291 - § 298] - General Immigration Provisions
- PART G [§ 301 - § 301c] - U.S. Customs and Border Protection Public Private Partnerships