The lap belt should be adjusted to fit snugly across what part of the body?

The lap belt should fit snugly across the hips to provide optimal protection in the event of a collision. When worn correctly, it lowers the risk of injury to the abdomen, which can occur if the belt is positioned improperly, such as across the stomach. By securing the lap belt over the hips, it helps to distribute the force of a crash over the stronger pelvic bones rather than the softer abdomen. This alignment minimizes the chances of serious injury and enhances overall passenger safety.

The correct placement is crucial for effective restraint since the lap belt is designed to keep occupants securely in their seats during sudden stops or impacts. Adjusting the belt to ride low over the hips ensures that it functions as intended, providing essential protection while still allowing for movement and comfort while driving.