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 information on the Coronavirus Disease 2019 (COVID-19) is available on coronavirus.gov.

United States Department of Transportation United States Department of Transportation

Hazardous Materials Markings, Labeling and Placarding Guide (DOT Chart 15)

Hazardous Materials Markings, Hazardous Materials Warning Labels, Hazardous Materials Warning Placards, General Guidelines on Use of Warning Labels and Placards

Last updated: Monday, January 20, 2014