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In our new tests of infant car seats, all performed adequately in simulated head-on crashes at 30 mph, the government standard. But we found differences in how easy the seats are to use and how securely they fit in a variety of vehicles--measures important to the safest ride for your baby.
For our latest tests, we re-evaluated 11 of 12 models we tested for a February 2007 report that we retracted because of testing errors. (One model, the Eddie Bauer Comfort, has since been discontinued and is no longer available.)
In the flawed February report, we attempted to test infant car seats in simulated 35-mph front and 38-mph side crashes. Those are the speeds that vehicles themselves are routinely subjected to in government tests for crashworthiness. The article reported widespread failures of the car seats, but the testing errors resulted in our withdrawal of those Ratings. (For details, see "How Our Car Seat Tests Went Wrong," in the May 2007 issue.)
All the infant seats we tested are rear-facing carrier models that snap in and out of a base. The base connects to the car by means of the vehicle's safety belts or LATCH attachments. LATCH, which stands for Lower Anchors and Tethers for Children, includes fasteners that connect the base to metal anchors in the car.
HOW WE TESTED
We conducted the crash tests at an independent contract lab, a different one from the lab we used previously. In the tests, a 22-pound dummy, simulating an average 12-month-old, is secured in the infant seat. The seat is attached to a piston-driven "sled" that mirrors the acceleration vehicle occupants would undergo in a 30-mph head-on collision into a rigid barrier. The government requires that all car seats and boosters on the market withstand a frontal impact at this speed.
We crash-tested each seat at least twice so that we could check performance using vehicle safety belts to secure the base and, separately, using LATCH attachments. Two independent consultants worked with us to review the tests.