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What are the different DOT Classes?

The different Class and Division numbers can be summarized as follows:

EXPLOSIVE, Class/Division: 1.1, 1.2, 1.3

EXPLOSIVE 1.4, Class/Division: 1.4

EXPLOSIVE 1.5 (Blasting Agent), Class/Division: 1.5

EXPLOSIVE 1.6, Class/Division: 1.6

FLAMMABLE GAS, Class/Division: 2.1

NON-FLAMMABLE GAS, Class/Division 2.2

INHALATION HAZARD, Class/Division 2.3

FLAMMABLE LIQUID, Class/Division 3.1, 3.2, 3.3

FLAMMABLE SOLID, Class/Division 4.1

SPONTANEOUSLY COMBUSTIBLE, Class/Division 4.2S

DANGEROUS WHEN WET, Class/Division 4.3

OXIDIZER, Class/Division 5.1

ORGANIC PEROXIDE, Class/Division 5.2

POISON, Class/Division 6.1, Packing Group I or II

INHALATION HAZARD, Class/Division 6.1 Packing Groups I and II

KEEP AWAY FROM FOOD, Class/Division: 6.1 Packing Group III

INFECTIOUS SUBSTANCE, Class/Division 6.2

RADIOACTIVE I

CORROSIVE, Class/Division: 8

CLASS 9, Class/Division: 9

CARGO AIRCRAFT ONLY

PACKAGE ORIENTATION MARKING

MARINE POLLUTANT MARKING

Also See ...

What are the Federal Regulations for Hazardous Materials Labeling?

Article on How to Select Labels for your Hazmat Package

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