In using a signaling device, which color accessory is permissible?

The permissible color accessory for a signaling device is yellow. This color indicates caution and is often used to alert other drivers and pedestrians that a vehicle is preparing to make a maneuver or that there is a need for increased awareness in the area. Yellow is widely recognized and signals to others that they should proceed with caution.

In contrast, the other colors, such as red, green, and white, are generally associated with different meanings. Red typically signifies a stop or danger, making it less suited for signaling a driver’s intentions. Green often represents a go signal, which does not apply in the context of signaling a specific maneuver. White can be used for various purposes, but it might not be as universally recognized in signaling situations as yellow is. Thus, yellow is the most appropriate color for a signaling device, promoting safety and clarity on the road.