JUST THE FACTS In the past 40 years new vehicle standards have been created and safety equipment has been installed. All the safety precautions together have saved over 300,000 lives. One, and only one, safety feature saved more than half of those lives -- seat belts. Front seat belt use is 16 percent higher than rear seat belt use. Evening seat belt use decreases about 10 percent from daytime use. Auto accidents are the number one killer of children ages 4 to 14. An average of five children die each day, and more than 600 are injured daily in auto accidents. The main reason is improper use of seat belts, booster seats and child restraints. -- National Highway Traffic Safety Administration