DOT

These are labels or placards that convey hazard information for containers or shipments of hazardous materials. Each label has a distinctive color pattern, pictogram, and wording or class number. There are nine different classes of hazardous materials under the Department of Transportation classification system.

Hazard Class

Division

Label

Description

CLASS 1

N/A

Explosives

CLASS 2

2.1

Flammable Gases

2.2

Non-Flammable Gases

2.3

Poison Gases

CLASS 3

N/A

Flammable Liquids

CLASS 4

4.1

Flammable Solids

4.2

Spontaneously Combustible Materials

4.3

Dangerous When Wet Materials

CLASS 5

5.1

Oxidizers

5.2

Organic Peroxides

CLASS 6

6.1

Poisons

6.1

Keep Away From Foodstuffs (less toxic than above)

6.2

Infectious Substances

CLASS 7

N/A

Radioactive I

N/A

Radioactive II

N/A

Radioactive III

CLASS 8

N/A

Corrosive

CLASS 9

N/A

Miscellaneous