UN Number

A UN Number is a unique four-digit code assigned by the United Nations to identify hazardous substances and articles for international transport. This identifier ensures standardized classification, safe handling, and efficient emergency response during transit. Each UN Number corresponds to a specific hazardous material, detailing its risks, packaging requirements, and handling protocols. It plays a critical role in complying with global regulations, such as the International Maritime Dangerous Goods (IMDG) Code and the International Civil Aviation Organization (ICAO) guidelines. Proper use of UN Numbers enhances safety, ensures regulatory compliance, and protects both people and the environment when transporting dangerous goods.

Back to Glossary