Make sure children are properly buckled in a car seat, booster seat, or seat belt-whichever is appropriate for their weight, height, and age. After outgrowing the forward-facing car seat, use a booster seat until seat belts fit properly. Links with this icon indicate that you are leaving the CDC website. Skip directly to site content Skip directly to page options Skip directly to A-Z link. Set a good example and help protect everyone in the car by always using your seat belt. To receive email updates about this page, enter your email address: Email Address.