The Department of Transportation placarding system requires a vehicle carrying nonflammable compressed gas to display a placard colored:

The Department of Transportation placarding system requires a vehicle carrying nonflammable compressed gas to display a placard colored:

• A. Green
• B. Red
• C. Yellow
• D. Orange

Answer: (A)

Green placards indicate nonflammable compressed gases (Class 2.2) under the DOT system. The color coding is designed so responders can quickly identify the broad hazard category: nonflammable gas, flammable gas would use a different color, and other hazards have their own markings. So when a vehicle is carrying a nonflammable gas, the green placard communicates that the gas itself does not pose a fire hazard, guiding the precautions you’d take in handling and responding to spills or leaks.

Green placards indicate nonflammable compressed gases (Class 2.2) under the DOT system. The color coding is designed so responders can quickly identify the broad hazard category: nonflammable gas, flammable gas would use a different color, and other hazards have their own markings. So when a vehicle is carrying a nonflammable gas, the green placard communicates that the gas itself does not pose a fire hazard, guiding the precautions you’d take in handling and responding to spills or leaks.