Which statement is correct regarding containers bearing DOT/TC before transportation?

• A. Retested or replaced
• B. Refilled
• C. Inspected
• D. Sealed

Answer: (A)

Before transportation, containers bearing DOT/TC markings must be retested or replaced to verify their integrity. Retesting provides formal confirmation that the container still meets the required strength, leak-tightness, and performance standards for carrying hazardous materials. If the container fails the retest or has reached the end of its authorized interval, it must be replaced. Refilling is not the regulatory trigger on its own, and while inspection checks for obvious damage, it does not substitute a formal retest. Sealing alone does not address whether the container remains compliant with safety standards.