Which requirement should NOT be checked for tail lamps?

Tail lamps are critical components of a vehicle's lighting system, and there are specific requirements that need to be checked to ensure they function properly and meet safety standards.

The correct answer focuses on the requirement of whether tail lamps are painted. Typically, tail lamps should be transparent or have a colored lens specifically designed for red light emission; painting them would hinder their effectiveness and potentially violate regulations. However, the check for whether they are painted does not directly relate to the functionality of the lamps according to safety regulations.

On the other hand, confirming the number of lamps present is essential since most vehicles are required to have both left and right tail lamps functioning properly. The color of the lamps must be red, as that is the standard for tail lights, ensuring proper visibility and signaling to vehicles behind. Finally, the mounting height of the tail lamps is also regulated to ensure they are visible at a certain distance and not obscured by the vehicle's design. Each of these checks pertains directly to safety and visibility, making them essential for ensuring that tail lamps comply with vehicle standards.