Some used safety seats may be perfectly safe, especially if they are fairly new and have had only one owner. However, any used seat could have many problems and should be checked carefully. If the seat has had more than one owner, it may be difficult to get accurate information. Normal wear and tear may cause the seat to not work as well. If unsure, contact manufacturer.
Every state now requires young children to be properly protected while riding in the car.
Children under 18 months of age must be in a federally-approved car seat when riding anywhere in the car. Children under five years of age must be in a car seat if they are riding in the front seat and must be secured by a safety belt if riding in the rear seat. If the number of children under 5 years old exceeds the number of safety belts, children who are not restrained must ride in the rear seat. Vehicles manufactured after 1995 generally do not need a locking clip when installing a child safety seat. Please check your vehicle owner's manual.