Progress report: research on the chest injury criteria.
- weak correlation between chest deflection and maximum acceleration (based on J NCAP testing)
- what is the difference between quasi ∆V and ∆V: ∆V is calculated from traveling declared speed, whereas quasi ∆V is estimated as the real impact speed.

Today, Japan has 2 criteria. Based on this presentation, chest deflection is a good criteria to promote load limiters.
- no criteria available to evaluate the belt load path (neither chest deflection, nor chest acceleration)
- this presentation confirms the decision that was taken at the 22nd meeting, showing that the chest acceleration is not sensitive to belt path.
- the belt routing taken into account in testing is sometimes extreme. The test procedure should be precise enough on the belt routing.

=> The group decides that with the tool currently available, the chest acceleration criteria is not appropriate.