Class 1: Explosives

Class 1 explosives are defined as any substance or article, including a device, which is designed to function by explosion. This class is separated into six divisions.

In addition to a hazard class number and a division number, explosives are sometimes further divided into compatibility categories represented with a letter designation that shippers use to load explosive properly, i.e. Fireworks are usually listed as HC/Div 1.4G.

An orange diamond placard with an image of an explosion at the top and the word explosives in the middle beneath that the number 1. To the bottom left the numbers 1.1, 1.2, 1.3, and the letters A, B, C, D, E, F, G, H, J, K, and L.