Passenger trains, lite locomotives, and locomotives operating at the rear of a train must be equipped with:

• A. An illuminated marking device or have the rear headlight on low beam at all times
• B. A rearview mirror
• C. Reflective bumper sticker
• D. A siren at the rear

Answer: (A)

The rule focuses on making the end of a train clearly visible to others for safety. Passenger trains, lite locomotives, and locomotives operating at the rear must have a signal that marks the back of the train. This can be either an illuminated marking device or the rear headlight kept on low beam at all times. Keeping a visible rear signal ensures following trains and track workers can recognize where the train ends, reducing the risk of collisions or misjudgments during movement, switching, or yard work.

The other options don’t meet this requirement because they don’t provide the mandated end-of-train visibility. A rearview mirror, a reflective bumper sticker, or a rear siren isn’t the specified means to mark the rear end.