In Ohio, children must be 13 or over to sit up front in a car, according to Nationwide Children's. Per Safe Kids Central Ohio, children in Ohio under 13 who are riding in the back seat must wear a safety belt if they are not secured in a car seat.
Other Ohio laws relating to transporting children in vehicles include keeping children under 4 years old and under 40 pounds in a safety seat while riding in the car, according to Nationwide Children's. Infants under 2 years of age need to ride in a rear-facing safety seat. Children in Ohio must use a booster seat until they are 4 feet 9 inches tall or they are 8 years old.