Placarding is required under which condition?

• A. Placarding is required for all pesticides regardless of quantity.
• B. Placarding is never required.
• C. Placarding is required when transporting pesticides bearing a DOT poison label in containers larger than 119 gallons or in quantities greater than 1,000 pounds.
• D. Placarding is required only when transporting liquids.

Answer: (C)

Placarding is tied to federal hazardous materials rules for pesticides that carry a DOT poison label. When you’re transporting that kind of hazardous material, you must display a placard on the vehicle if the shipment meets certain quantity thresholds. Specifically, if the pesticide is labeled as poison and you’re moving more than 119 gallons or more than 1,000 pounds in a single transport, a placard is required. This system exists to alert emergency responders to the hazard and to ensure extra precautions are taken during handling and transit.

This is the best answer because it directly reflects the quantity-based requirement tied to the presence of a DOT poison label. The other options fail because placarding isn’t required for every pesticide regardless of quantity, it isn’t never required, and placarding isn’t limited to liquids—it applies to hazardous materials in general when those thresholds are met.