What should a mechanic check to ensure the vehicle's lights meet inspection requirements?

To ensure the vehicle's lights meet inspection requirements, a mechanic should focus on the functionality of all lights. This means that every light, including headlights, brake lights, turn signals, and taillights, must be operational. Functional lights are critical for safety as they communicate the vehicle's presence, direction, and intentions to other drivers and pedestrians.

If any light is not working, it can lead to dangerous situations on the road, such as a lack of visibility at night or failure to signal intentions to other drivers. Therefore, confirming that all lights function properly is a key part of the inspection process and is essential for compliance with state regulations.