Florida law states: Children 5 years old or younger must be secured in a federally approved child restraint system: Children 3 years old and younger must use a separate car-seat or the vehicle's built-in child seat. Children 4 through 5 years must sit in either a separate car seat, a built in child seat or a seat belt, depending on the child's height and weight. https://www.dmv.org/fl-florida/safety-laws.php#Florida-Child-Car-Seat-Laws
Children 5 years old or younger must be secured in a federally approved child restraint system:
Children 3 years old and younger must use a separate car-seat or the vehicle's built-in child seat.
Children 4 through 5 years must sit in either a separate car seat, a built in child seat or a seat belt, depending on the child's height and weight.
https://www.dmv.org/fl-florida/safety-laws.php#Florida-Child-Car-Seat-Laws