WASHINGTON — Half of all booster seats don’t ensure that adult-size seat belts fit children properly in all vehicles, according to an analysis released Wednesday by the Insurance Institute for Highway Safety.
Of 83 booster seats evaluated, 41 fell into the “check fit” category, meaning they might not provide adequate seat-belt fit for all children in all vehicles, the study found. Parents with those seats should check that the booster makes the lap belt lie flat across the child’s upper thighs and the shoulder belt fit snugly across the middle of the shoulder, researchers said. If it doesn’t do both, they said, parents should use another booster seat. The analysis covered all U.S. booster seats being manufactured.
The study covered 62 models but 83 seats because 21 models were tested in both full-back and backless positions. The rankings are available at .
