21. The expert from France introduced GRSP-63-18 on how to improve UN Regulation No. 22. He noted that improving on testing requirements should address rotational acceleration as a priority. He also introduced the ToR of the IWG on UN Regulation No. 22 (GRSP-63-26), as agreed by the group during its first meeting held at the Palais des Nations on 14 May 2018. GRSP adopted GRSP-63-26 as reproduced in Annex VII to the session report. Finally, GRSP agreed to resume discussion at its December 2018 on the work progress of the IWG.