In DOT hazard classifications, which class is associated with nonflammable gases?

In DOT hazard classifications, which class is associated with nonflammable gases?

• A. Class 3 Flammable liquids
• B. Class 2 Nonflammable gases
• C. Class 1 Explosives
• D. Class 6 Toxic poisons

Answer: (B)

Nonflammable gases are categorized under Class 2 in the DOT hazard classification. The DOT groups materials by hazard type, and Class 2 covers gases. Within that class there are divisions that distinguish flammable gases (2.1), nonflammable gases (2.2), and toxic gases (2.3). So, nonflammable gases belong to Class 2, not to Class 3 (flammable liquids), Class 1 (explosives), or Class 6 (toxic poisons). This classification guides labeling, placarding, and handling requirements for shipments.

Nonflammable gases are categorized under Class 2 in the DOT hazard classification. The DOT groups materials by hazard type, and Class 2 covers gases. Within that class there are divisions that distinguish flammable gases (2.1), nonflammable gases (2.2), and toxic gases (2.3). So, nonflammable gases belong to Class 2, not to Class 3 (flammable liquids), Class 1 (explosives), or Class 6 (toxic poisons). This classification guides labeling, placarding, and handling requirements for shipments.