What Is Placarded Hazmat

Placards are standard hazmat identifiers, designed to meet certain specifications, and placed on outer containers, trucks, cylinders, or other vehicles used for transport. Markings are additional identifiers (other than hazard labels & placards) that further describe the package.

What do hazmat placards mean?

Hazmat placards are a key part of transporting hazardous materials safely. They offer a simple and effective way to communicate critical information about which materials are being transported and the risks that they pose.

What is the minimum weight when a hazardous material must be placarded?

However, placards would be required when the aggregate gross weight is 1,001 lb or more. For example, if 700 lbs of Hazard Division 2.1 (flammable gas) and 200 lbs of another material specified in Table 2 of 49 CFR 172.504—let’s say Class 8 (corrosive material)—are being transported, no placard would be required.