The Slow Moving Vehicle Emblem is described as which of the following?

• A. A blue circle with white border
• B. A red octagon
• C. A white square with a red border
• D. A bright fluorescent orange triangle with a thick black border

Answer: (D)

The symbol is a warning sign used to tell other drivers that the vehicle may move slowly and you should be prepared to slow down or pass carefully. It must be highly visible, so the design uses a bright fluorescent orange color and a triangular shape that’s universally recognized as a warning. The triangle shape conveys caution, and the border provides strong contrast against different backgrounds, helping it read clearly from a distance and at night when headlights hit it. That combination—an orange triangle with a bold outline—best matches the emblem's purpose and appearance, unlike the other shapes and colors listed, which are used for different signs. This emblem is mounted on the rear of slow-moving vehicles like tractors and farm equipment to warn following traffic.