Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

The latest general information on the Coronavirus (COVID-19) is available on Coronavirus.gov. For PHMSA contact information during the COVID-19 health emergency, please visit our page.

United States Department of Transportation United States Department of Transportation

DOT Chart 16 - Hazardous Materials Markings, Labeling and Placarding Guide

DOT Chart 16 Cover

PHMSA has developed a searchable mobile application for both iOS and Android platforms to assist shippers, carriers, and other stakeholders to quickly access information regarding hazardous materials markings, labels and placards.*

The latest version of the  Hazardous Materials Markings, Labeling and Placarding Guide includes the following changes:

  • Addition of the Lithium Battery handling marking old and new, and the transition date of December 31, 2018 for the old version.
  • Addition of the Class 9 Label for Lithium battery handling with an effective date of January 2019.  
  • Replacement of the yellow Organic Peroxide 5.2 Placard with red and yellow Organic Peroxide 5.2.

* This application is intended for general guidance only and should not be used to determine compliance with 49 CFR, Parts 100-185. 

Last updated: Wednesday, August 16, 2017