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.