When must a slow-moving vehicle display a slow-moving vehicle emblem?

A slow-moving vehicle must display a slow-moving vehicle emblem when it is driven on a highway. This requirement is in place to enhance visibility and ensure that other drivers can identify slower-moving vehicles, which typically travel at speeds of 25 mph or less. The purposeful placement of this emblem serves as a safety measure, alerting faster-moving traffic to the presence of a vehicle that may require extra caution when overtaking or approaching.

The other scenarios do not necessitate the use of the emblem. For instance, while parked on the side of the road, a vehicle is not in motion and therefore does not pose the same risks associated with slower speeds in active traffic. Similarly, the use of the emblem when crossing intersections or at night is not mandated. The key aspect is that the emblem is required specifically during operation on highways where traffic speeds are higher and the risk of accidents increases significantly.