How should a car seat retainer clip be positioned for a newborn?

The appropriate positioning of a car seat retainer clip is at the level of the baby's armpits. This helps ensure that the harness keeps the baby securely in the seat and distributes crash forces properly across the strongest parts of the infant's body. When the clip is positioned at the armpits, it provides adequate restraint in the event of a collision while still allowing for comfort and movement.

The position of the clip is critical for the safety of the newborn. If the clip is placed at the waist or below the shoulders, it may not hold the baby securely enough, increasing the risk of injury during a crash. Similarly, placing the clip above the chin can create a dangerous scenario where, in the event of a crash, the forward motion might cause the infant to slip out of the harness entirely or experience excessive movement head-forward, potentially leading to significant injuries. Thus, the position at the armpits strikes the necessary balance for excellent support and safety for a newborn in a car seat.