Seat belt laws are regulations that require drivers and passengers in vehicles to wear seat belts while the vehicle is in motion. These laws aim to enhance safety and reduce injuries in the event of a car accident. Most countries have specific rules about who must wear a seat belt, often including front-seat passengers and children in the back seat. Enforcement of seat belt laws varies by location, with some areas imposing fines for non-compliance. Additionally, many states in the United States have primary enforcement laws, allowing police to stop and ticket drivers solely for not wearing a seat belt.