17. The expert from the Russian Federation introduced ECE/TRANS/WP.29/GRSG/2024/39 as a revision of an earlier proposal (ECE/TRANS/WP.29/GRSG/2023/2). He added that the proposal included the definitions “escape hatch” and “emergency exit”, in line with UN Regulation No. 107, and the revised testing provisions in annex 5 of the UN Regulation. The expert from OICA introduced GRSG-128-18 arguing that some of the provisions on seat strength were already covered by UN Regulation No. 80 (Strength of seats and their anchorages (buses)). Moreover, he added that the proposal led to an increase stringency that needed a new series of amendments. The expert from Germany expressed reservation on the proposed post-collision test and that a separate test should be added. The expert from Sweden supported the expert from Germany. The experts from France and Italy supported the position of the expert from OICA. The expert from the Russian Federation introduced a revised proposal (GRSG-128-43) superseding ECE/TRANS/WP.29/GRSG/2024/39. The expert from Italy expressed a study reservation and stated his intention to send comments to the expert of the Russian Federation. The expert from Germany suggested that a meeting with interested parties should check the list of objects proposed by GRSG-128-43 that should stay in place in the bus after a crash. The expert from France made a proviso, a caveat, that this list that could be covered by national legislation. Finally, the expert from the Russian Federation agreed to organise a meeting with interested experts and announced a revised proposal for the April 2025 session of GRSG.

14. The expert from the Russian Federation introduced GRSG-129-39 superseding ECE/TRANS/WP.29/GRSG/2024/39. The expert from OICA stated that additional post-collision tests should be considered as separate from the current tests of the UN Regulation. The experts from France expressed their reservation on the proposal arguing that: (a) the assessment of seat attachments was covered by UN Regulation No. 80 and needs to work on this issue not completely covered by UN Regulation No. 66, (b) the causes of traumas and injuries are assessed at the national level, and © the difficulty for type approval authorities to deal with the different annexes. The expert from the Kingdom of the Netherlands clarified that UN Regulation No. 66 did not cover seat attachments, but covered superstructures. He also added that interior fittings were not provided by bus manufacturers and not under their responsibility. The expert from Sweden endorsed the statements of France and the Kingdom of the Netherlands. The Chair of GRSG stated that the group was not in the position to adopt the proposal and suggested continuing discussion in meetings of interested parties. GRSG agreed to resume consideration on this subject at its October 2025 session based on a revised proposal provided by the expert from the Russian Federation. The GRSG Chair requested to provide comments to the expert from the Republic of Korea at its October 2025 session.