Glossary
UN Number — United Nations Number
Last updated: 6 Jul 2026Reviewed by Ms. Rubab Nizami, Lead AVSEC Faculty
In short
A UN number is a four-digit code that identifies a dangerous substance or article in international transport — for example UN 3480 for lithium-ion batteries or UN 1203 for petrol/gasoline. It links the item to its handling and packing rules.
- Full form
- United Nations Number
- Category
- Dangerous Goods