Presentation to highlight inconsistencies in the lateral and forward cumulative head and chest acceleration injury criteria (determination of the maximum acceleration with a cumulative duration of at least 3ms).

Copy of document GRSP/2015/24 for discussion during the 54th CRS informal group session. This proposal would extend the scope of UN Regulation No. 129 to include non-Integral child restraint systems (“Universal Booster” or “Specific to vehicle Booster”).

Review of UN R129 testing with regard to child dummy performance, submarining, pelvic/abdominal measurements, and injury criteria.

Presentation of proposal for interim solution to allow for booster cushions without a backrest to be kept in UN R44 (but prohibited for children smaller than 125 cm) pending development of provisions for non-integral i-Size booster seats with integrated backrest under UN R129 (Phase2).