4. The expert from Germany introduced GRSG-127-15 on behalf of the Chair of the IWG on Safer Transport of Children in Buses and Coaches (STCBC). He informed GRSG about the IWG progress in Phase 2. He clarified that IWG work would aim to prevent the ejection of children from their seats and would improve the vehicle retention systems already on the market. He added that after 2027, new bus designs would incorporate Child Restraint Systems (CRS). He added that the issues currently under discussion in IWG were: (a) the improvement of the current situation, (b) the possible use of a booster cushion type approved according to UN Regulation No. 44 and © that additional fixation were not to be used, except for CRS to avoid misuse. The expert from the United Kingdom asked for clarification on the type of seats in consideration (e.g. bench, unfolded plastic). The expert from Germany responded that the focus was limited to coaches in the scope of the UN Regulation until 2027.