All children 5 years old or younger must use a restraint device when riding in a motor vehicle. This Florida law requires every driver to secure children five years of age or younger in child restraint devices riding in a passenger car, van, or pick-up truck, regardless of whether the vehicle is registered in this state. Infant carriers or children's car seats must be used for children three years old and younger. Children's car seats or safety belts may be used for four- and five-year-olds. All infant carriers and car seats must be crash-tested and approved by the U.S. Government. Children being carried or riding bicycles should wear properly fitted bicycle helmets. Please also check with your car rental company for further information and any updates as rules and safety standards change.