---
kind: "unit"
title: "49"
title_heading: "Transportation"
key: "subtB/chI/subchC/part172"
level: "part"
label: "Part 172"
heading: "Hazardous Materials Table, Special Provisions, Hazardous Materials Communications, Emergency Response Information, Training Requirements, and Security Plans"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/49/subtB-chI-subchC-part172"
sections_count: 121
---

# Part 172 — Hazardous Materials Table, Special Provisions, Hazardous Materials Communications, Emergency Response Information, Training Requirements, and Security Plans

Title 49 C.F.R. — Transportation › Subtitle B — Other Regulations Relating to Transportation › Chapter I — Pipeline and Hazardous Materials Safety Administration, Department of Transportation › Subchapter C — Hazardous Materials Regulations

## Contents

- [Subpart A — General](/cfr/49/subtB-chI-subchC-part172-subpartA.md)
- [Subpart B — Table of Hazardous Materials and Special Provisions](/cfr/49/subtB-chI-subchC-part172-subpartB.md)
- [Subpart C — Shipping Papers](/cfr/49/subtB-chI-subchC-part172-subpartC.md)
- [Subpart D — Marking](/cfr/49/subtB-chI-subchC-part172-subpartD.md)
- [Subpart E — Labeling](/cfr/49/subtB-chI-subchC-part172-subpartE.md)
- [Subpart F — Placarding](/cfr/49/subtB-chI-subchC-part172-subpartF.md)
- [Subpart G — Emergency Response Information](/cfr/49/subtB-chI-subchC-part172-subpartG.md)
- [Subpart H — Training](/cfr/49/subtB-chI-subchC-part172-subpartH.md)
- [Subpart I — Safety and Security Plans](/cfr/49/subtB-chI-subchC-part172-subpartI.md)