According to NHTSA (National Highway Traffic Safety Administration), car crashes are the number one killer of children ages one to 12 in the United States.
Arizona Law 28-907: Effective August 2, 2012, all children under 8 and 4'9" are required to be secured in a child restraint. The seat must meet appropriate height and weight specifications for the child.
Certified child passenger safety technicians are available to help you. For information or assistance with a car seat, contact the Community Resource Unit at (520) 382-2053.