Gas is categorized under which DOT Class?

Gas is categorized under which DOT Class?

• A. DOT Class 1
• B. DOT Class 2
• C. DOT Class 3
• D. DOT Class 7

Answer: (B)

Gases are placed in Class 2 because this category covers materials primarily defined by their physical form and pressure-related hazards. Class 2 includes compressed, liquefied, and dissolved gases, whether they are flammable, nonflammable, or toxic. Recognizing gas as Class 2 guides the necessary safety measures: packaging and cylinder design must handle internal pressure, ventilation becomes crucial to prevent asphyxiation or accumulation, and handling procedures are tailored to prevent leaks, ruptures, and ignition sources. Other options correspond to different hazards: explosives are in Class 1, flammable liquids in Class 3, and radioactive materials in Class 7. Therefore, the gas classification aligns with Class 2.

Gases are placed in Class 2 because this category covers materials primarily defined by their physical form and pressure-related hazards. Class 2 includes compressed, liquefied, and dissolved gases, whether they are flammable, nonflammable, or toxic. Recognizing gas as Class 2 guides the necessary safety measures: packaging and cylinder design must handle internal pressure, ventilation becomes crucial to prevent asphyxiation or accumulation, and handling procedures are tailored to prevent leaks, ruptures, and ignition sources. Other options correspond to different hazards: explosives are in Class 1, flammable liquids in Class 3, and radioactive materials in Class 7. Therefore, the gas classification aligns with Class 2.