175. The representative of the Republic of Korea informed AC.3 the activities of the IWG on Deployable Pedestrian Protection (DPPS) were in its final stages. He added that since the WP.29 2023 March session, the IWG hold several meetings and discussed simulation methods for determining head impact time, the use of generic vehicle models for verification of Human Body Model which will be used for simulations method and uploading generic vehicle model in WP.29 website. He clarified that to finalize the amendment 3 of UN GTR No. 9, and the amendment of Mutual Resolution No.1 (M.R.1) for introducing simulation method, the IWG requested a six-month extension of its mandate until May 2024, seventy-third session of GRSP. He informed AC.3 that the IWG planned to submit all amendments of UN GTR No. 9 and M.R.1 to the next GRSP, 2023 December session, expecting that GRSP would recommend the amendments to the June 2024 session of AC.3. AC.3 endorsed the request of extension of the mandate of the IWG until May 2024.