---
kind: "unit"
title: "49"
title_heading: "Transportation"
key: "subtB/chI"
level: "chapter"
label: "Chapter I"
heading: "Pipeline and Hazardous Materials Safety Administration, Department of Transportation"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/49/subtB-chI"
sections_count: 1914
---

# Chapter I — Pipeline and Hazardous Materials Safety Administration, Department of Transportation

Title 49 C.F.R. — Transportation › Subtitle B — Other Regulations Relating to Transportation

## Contents

- [Subchapter A — Hazardous Materials and Oil Transportation](/cfr/49/subtB-chI-subchA.md)
- [Subchapter B — Oil Transportation](/cfr/49/subtB-chI-subchB.md)
- [Subchapter C — Hazardous Materials Regulations](/cfr/49/subtB-chI-subchC.md)
- [Subchapter D — Pipeline Safety](/cfr/49/subtB-chI-subchD.md)