---
kind: "unit"
title: "6"
title_heading: "Domestic Security"
key: "ch4/schII"
level: "subchapter"
label: "Subchapter II"
heading: "Transportation Security Enhancements"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/6/ch4-schII"
sections_count: 9
---

# Subchapter II — Transportation Security Enhancements

Title 6 — Domestic Security › Chapter 4 — Transportation Security

## Sections

- [§1111. Definitions](/usc/6/1111.md)
- [§1112. Authorization of Visible Intermodal Prevention and Response teams](/usc/6/1112.md)
- [§1113. Surface transportation security inspectors](/usc/6/1113.md)
- [§1114. Surface transportation security technology information sharing](/usc/6/1114.md)
- [§1115. TSA personnel limitations](/usc/6/1115.md)
- [§1116. National explosives detection canine team training program](/usc/6/1116.md)
- [§1117. Roles of the Department of Homeland Security and the Department of Transportation](/usc/6/1117.md)
- [§1118. Biometrics expansion](/usc/6/1118.md)
- [§1119. Voluntary use of credentialing](/usc/6/1119.md)