What are "overpacks" in hazardous materials shipping?

Overpacks are specifically designed to consolidate hazardous materials for safer and more efficient transportation. This concept plays a vital role in ensuring compliance with DOT regulations because overpacks help to contain and protect the individual hazardous materials packaged within them. By using an overpack, shippers can improve the overall safety of the shipment by preventing leaks or spills that could occur with smaller, individual packages.

The definition of overpacks as containers that support multiple units or materials simplifies handling and may also enhance visibility of necessary labeling and documentation. This helps transporters meet the requirements for identifying hazardous materials while maintaining compliance with regulations regarding the transport of dangerous goods.