Site Feedback

Title 49

Displaying title 49, up to date as of 9/23/2021. Title 49 was last amended 9/13/2021.
eCFR Content

The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. It is not an official legal edition of the CFR.

Learn more about the eCFR, its status, and the editorial process.

Title 49 Transportation Part / Section
Subtitle B Other Regulations Relating to Transportation 100 – 1699
Chapter I Pipeline and Hazardous Materials Safety Administration, Department of Transportation 100 – 199
Subchapter C Hazardous Materials Regulations 171 – 185
Part 171 General Information, Regulations, and Definitions 171.1 – 171.26
Subpart A Applicability, General Requirements, and North American Shipments 171.1 – 171.14
§ 171.1 Applicability of Hazardous Materials Regulations (HMR) to persons and functions.
§ 171.2 General requirements.
§ 171.3 Hazardous waste.
§ 171.4 Marine pollutants.
§ 171.6 Control numbers under the Paperwork Reduction Act.
§ 171.7 Reference material.
§ 171.8 Definitions and abbreviations.
§ 171.9 Rules of construction.
§ 171.10 Units of measure.
§ 171.11 [Reserved]
§ 171.12 North American Shipments.
§ 171.12a [Reserved]
§ 171.14 [Reserved]