What is the required color of front clearance lamps for trucks, buses, or trailers that are 80 inches or more in width?

Front clearance lamps on trucks, buses, or trailers that are 80 inches or more in width are required to be amber in color. This regulation is designed for safety and visibility, as amber lights are easily seen and can effectively signal the presence and width of large vehicles to other motorists. The use of amber lights also helps in distinguishing these vehicles from those that might use red lights for the tail lights or brake lights. By standardizing front clearance lamps to this color for wider vehicles, it provides a consistent visual cue, enhancing the safety of both the drivers of the larger vehicles and those sharing the road with them.