What might you find on a DOT placard?

A DOT placard is specifically designed to convey critical information about the hazardous materials being transported, and its primary purpose is to represent the class of the material through color-coded designs. Each color and symbol on the placard corresponds to specific types of hazards, such as flammable, explosive, toxic, or corrosive materials. For instance, a red placard indicates flammable materials, while a green one is used for non-flammable gases. This visual representation allows for quick and clear identification by first responders and others who may encounter the transport vehicle, enhancing safety measures and response protocols.

Other options, while potentially useful in different contexts, do not pertain to the specific function of a DOT placard. A list of hazardous materials or emergency contact information would typically be found on accompanying shipping documents rather than on the placard itself. Additionally, the weight of the material is not relevant to the placard, as its focus is solely on the hazard classification rather than details about quantity or weight.