What is the requirement for headlights in foggy conditions?

In foggy conditions, using low-beam headlights is essential because they illuminate the road without causing significant glare that can reflect off the fog, rain, or snow. High-beam headlights tend to create a bright light that can bounce back off the water droplets in the fog, reducing visibility and making it harder for drivers to see the road ahead.

Low-beam headlights provide a wider and closer illumination that allows drivers to see the road and any obstacles more clearly. This is especially important in fog, where visibility can be greatly reduced, and navigating safely is crucial. By using low-beam headlights, drivers can enhance their visibility while minimizing the potential for glare that could impair their own vision as well as that of other road users.