The transportation of hazardous substances requires special precautions to ensure safe handling and prevent accidents. In international commerce, the United Nations (UN) plays a crucial role in regulating the transport of hazardous substances through its recommendations and guidelines.

The UN assigns unique four-digit numbers, known as UN numbers, to identify and classify hazardous substances. These numbers are essential for determining the proper shipping names, packing groups, and compatibility groups for hazardous substances. By using these UN numbers, shippers can ensure that hazardous substances are transported safely and in compliance with international regulations. This system helps to identify dangerous goods and ensures that they are handled with the appropriate care to protect human health, safety, and the environment.
UN Hazmat Sign Components and Classifications
It’s vital that anyone who works with or around hazardous materials can properly identify the various aspects of each hazmat placard, as well as the various classifications that each one represents.
Proper identification of hazardous materials through UN numbers is essential for ensuring safety and compliance with regulations.