Cars, minivans and light trucks are required to have anchors between the seat cushion and seat back and a top tether anchor in at least two rear seat positions. Fasteners on child safety seats latch on to the anchors.
Rear-facing infant safety seats must have lower LATCH attachments. Seats designed to face forward and convertible child safety seats must have lower LATCH attachments and also have a top tether strap. Convertible seats are designed to work in both rear- and forward-facing positions.