What is the minimum distance that low beams must reveal a person or vehicle?

Low beam headlights must be able to illuminate a person or vehicle at a minimum distance of 100 feet. This standard is critical for road safety as it ensures that drivers can see potential obstacles or pedestrians in time to react appropriately. The effective illumination provided by low beams allows for better visibility in situations such as nighttime driving or in poor weather conditions, where identifying the presence of other road users is essential.

Meeting this minimum distance enhances not only the driver's situational awareness but also helps prevent accidents by providing enough time to respond safely. The standards set for low beam illumination are meant to strike a balance between ensuring visibility for the driver while also minimizing glare for oncoming traffic, thereby promoting safety for all road users.