What should be verified about a vehicle's headlights during an inspection?

A vehicle's headlights are a critical safety feature, and during an inspection, it is essential to verify that they have both high and low beams operational. This ensures that the driver has appropriate lighting for various driving conditions, enhancing visibility during nighttime or adverse weather conditions, and when traveling at different speeds. Having operational high and low beams is integral to safe driving, as each setting is designed for specific scenarios; for example, low beams are used in standard driving conditions to avoid blinding other drivers, while high beams provide greater visibility when no oncoming traffic is present.

While the other options may address certain aspects of headlights, such as tinting or particular types of bulbs, they do not reflect the fundamental requirement for a vehicle's lighting system to function effectively in both high and low beam settings. This operational capacity is essential for compliance with safety regulations and for the assurance of safe vehicle operation on the road.