Is it acceptable for any light to be obstructed by materials that are not transparent?

Obstruction of lights with materials that are not transparent is a safety concern. Vehicle lights, including headlights, taillights, and turn signals, must be fully functional and unobstructed to ensure maximum visibility and effective communication of the vehicle's maneuvers to other drivers on the road. When lights are blocked by non-transparent materials, their ability to emit light is compromised, which can lead to dangerous situations.

In the context of safety inspections, the standards are strict, and any obstruction that affects the clarity and functionality of lighting systems results in failure. This is to prioritize overall road safety and ensure that all vehicles communicate their presence and intentions clearly to others. The implication is that all vehicles, regardless of age or state, must adhere to these strict visibility regulations to maintain safety on the road.