GRSP agreed to resume discussion on two revised proposals of amendments, tabled by the expert from Germany, to ensure that only head restraints which are safe can be fitted to seats in all seating positions and all vehicle categories, as specified in the scope of the UN Regulation (ECE/TRANS/WP.29/GRSP/2023/4 and ECE/TRANS/WP.29/GRSP/2023/5 superseding ECE/TRANS/WP.29/GRSP/2022/20 and ECE/TRANS/WP.29/GRSP/2022/21).