[header] How to choose the right car seat [title] Choose an infant car seat if you have a newborn baby. [step] If you have a newborn baby, you should invest in a rear-facing infant car seat. These seats are designed to be safer for babies that weigh between 22 and 35 pounds. 
[substeps] When sitting in the seat, the baby's head should be at least 1 centimeter (0.4 in) away from the side of the seat. If not, the car seat is too small.