Labeling

The purpose of a label is to provide a hazard warning notice to both the general public and emergency responders. You must label hazardous material if it meets one or more hazard class definitions. These packages and containment devices include:

• A non-bulk package
• A bulk packaging, other than a cargo tank, portable tank, or tank car, with a volumetric capacity of less than 18 cubic meters (640 cubic feet)
• A portable tank of less than 3,785 liters capacity
• A DOT Specification 106 or 110 multi-unit tank car tank
• An overpack, freight container, or unit load device of less than 18 cubic meters if it contains a package for which labels are required

Labels convey information about the hazardous material by the use of color, symbols, text, and the hazard class or division number. All hazard warning labels must meet specifications pertaining to the following:

• Durability
• Design
• Size
• Color
• Form identification

The label required for a specific hazardous material is identified in Column 6 of the HMT and outlined in Part 172, Subpart E. Some materials have more than one code listed in the HMT. When this occurs, the first code signifies the primary hazard, and any additional codes indicate the subsidiary hazards. You must display the appropriate hazard class or division number in the lower corner of both primary and subsidiary hazard labels.

To learn more about DOT HAZMAT Awareness visit our DOT HAZMAT General Awareness Online Training web page.