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

This chart provides an overview of hazardous materials markings, warning labels, and placards for the class 1 (explosives), class 2 (gases), class 3 (flammable liquid and combustible liquid), class 4 (flammable solid, spontaneously combustible and dangerous when wet), class 5 (oxidizer & organic peroxide), class 6 (poison (toxic) and poison inhalation hazard), class 7 (radioactive), class 9 (miscellaneous), and dangerous. Refer to 49 CFR, Part 172: Marking - Subpart D; Labeling - Subpart E; Placarding - Subpart F.

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