What is the minimum distance you should switch to low beams before meeting another vehicle?

The minimum distance to switch to low beams before meeting another vehicle is 200 feet. This distance allows for adequate visibility without causing glare that can impair the vision of the oncoming driver. High beams are designed for use in low visibility conditions, such as on dark, unlit roads, but they can be dangerous when illuminating another vehicle, as they may blind the driver of that vehicle. By switching to low beams at this distance, you ensure safety for both yourself and the other driver, creating a more comfortable driving environment for everyone on the road.