The American Academy of Pediatrics has recommended that children remain in a car seat in a rear facing position until age 2 years or until the weight and height limits of a particular car seat are exceeded.  Our printed handbook is now out of date in this recomendation.  Read about this in the American Academy of Pediatrics car seat article by clicking:  http://www.healthychildren.org/English/safety-prevention/on-the-go/pages/Car-Safety-Seats-Information-for-Families.aspx