This investigation demonstrates that the simple addition of a tether strap to a child restraint can dramatically improve the safety of children in an accident.

Improperly fitted child restraints are a significant problem in both Europe and USA. This has led to reduced restraint performance in accidents resulting in serious injury and death.

This investigation examines the use of tether straps, particularly in Australia, as well as testing the performance of tethered and non tethered child restraints. The effect of loose seat belt adjustment in testing results in greater head excursion with child restraints without upper tether straps. Testing confirms the significant reduction in head excursions available with the use tether straps without any degradation in HIC.