24. The expert from CLEPA introduced ECE/TRANS/WP.29/GRSP/2023/38 with a presentation (GRSP-74-36): to reinstate the reference to the one-belt route for installation of boosters (paragraph 6.1.3.4. of the UN Regulation) and to clarify the choice of the dynamic test on a vehicle body shell or on the test bench. The expert from the Netherlands fully supported the proposal which clarified and solved grey areas, so as to provide a full understanding of testing procedure for technical services. GRSP adopted ECE/TRANS/WP.29/GRSP/2023/38 not amended. The secretariat was requested to submit the proposal as draft Supplement 11 to the 03 series of amendments and Supplement 1 to the 04 series of amendments to UN Regulation No. 129 to the June 2024 sessions of WP.29 and AC.1.

25. The expert from CLEPA introduced GRSP-74-03 that sets strict design requirements to reduce misuse of type-approved Child Restraint Systems (CRS) already on market that had features that were not allowed by UN Regulation No. 129. He requested feedback from the experts on what can and should be done. The expert from Finland informed GRSP that when a situation of this kind occurred in his country, market surveillance intervened to withdraw the product from the market. GRSP agreed to keep GRSP-74-03 on the agenda of the May 2024 session of GRSP for further consideration.