What are the rules for maintaining a safe margin between your vehicle and what you can see on the road ahead?

To maintain a safe margin between your vehicle and what you can see on the road ahead, ensure you have a clear line of sight to identify potential hazards. Follow the "three-second rule" by choosing a stationary object and ensuring you pass it at least three seconds after the vehicle in front of you. Increase this distance in adverse weather conditions or when driving at higher speeds. Always adjust your following distance based on traffic conditions, ensuring you have ample time to react to sudden stops or obstacles.