What is the clear distance required when passing on a two-lane highway?

The clear distance required when passing on a two-lane highway is typically set at 1/3 mile. This distance ensures that a driver has adequate visibility and time to safely maneuver past another vehicle without risking a collision. When passing, it's crucial to be able to see oncoming traffic and assess whether it is safe to complete the maneuver. A clear distance of 1/3 mile provides enough room to accelerate, pass the vehicle, and return to the right lane safely before encountering any approaching vehicles. This requirement helps maintain safety on the roads, particularly in situations where visibility may be limited. In contrast, distances like 1/4 mile, 1/2 mile, and 3/4 mile would not align with the established safety guidelines for safe passing under typical road conditions.