DOT requires that cylinders be clearly labeled with

• A. Shipping name and hazard class
• B. Owner name and production date
• C. Fill weight and volume
• D. Hazard rating and color code

Answer: (A)

Labels on cylinders must clearly show the shipping name and hazard class. The shipping name identifies exactly what product is inside (for propane, something like Propane, liquefied), and the hazard class indicates the type and degree of danger (flammable gas, class 2.1). This pairing lets anyone handling the cylinder know what precautions to take and how to respond in a fire or leak. Information like owner name or production date isn’t the transport-facing label DOT requires, fill weight or volume isn’t the hazard information the label communicates, and a color code or hazard rating doesn’t convey the complete required safety details for transport.