CHAPTER 4—TRANSPORTATION SECURITY (§§ 1101—1208)
- SUBCHAPTER I—TRANSPORTATION SECURITY PLANNING AND INFORMATION SHARING (§§ 1101—1104)
- SUBCHAPTER II—TRANSPORTATION SECURITY ENHANCEMENTS (§§ 1111—1117)
- SUBCHAPTER III—PUBLIC TRANSPORTATION SECURITY (§§ 1131—1144)
- SUBCHAPTER IV—SURFACE TRANSPORTATION SECURITY (§§ 1151—1208)