Hazmat Placard Requirements

Hazardous materials pose a threat to the public. Millions of packages and shipments containing hazardous materials are transported daily. Placards affixed to each load alert handlers of the hazards associated with the contents. When accidents occur, placards identify the material so an appropriate response can be undertaken. The U.S. Department of Transportation regulates the handling and shipping of hazardous materials under Title 49 of the United States Code of Federal Regulations (49CFR), which is also known as the Federal Motor Carriers Safety Regulations (FMCSR).

Non-bulk Hazmat Packages

• Hazmat regulations require that non-bulk 119-gallon packages be marked with the material's proper shipping name (PSN), United Nations/North American (UN/NA) identification number, and the name and address of the consignor or consignee. Additional markings may be required depending on the material and shipment.

Hazardous Waste

• Hazardous waste must be labelled. During transport a placard is required.

  Hazardous waste must be labelled although the DOT and Environmental Protection Agency (EPA) does not require a specific label. However, during transport, containers must also display the appropriate DOT markings and labels. Typical hazardous waste labels combine the required DOT and waste markings and provides space for the user to enter additional mandatory and voluntary information.

Placard Size and Placement

• Placards are 273 mm x 273 mm

  DOT placards are 273 mm x 273 mm. Although similar to labels, their design is federally regulated and they must be placed on bulk packages and transport vehicles, including semi trucks and train cars. Additional placards may be required depending on the shipment.

Chemical Placards

• Placards with a (UN/NA number) must be placed on the side of trucks and rail cars carrying chemicals. The numbers refer to specific chemicals or groups of chemicals and are assigned by the United Nations and/or the United States Department of Transportation.