26. The expert from the Netherlands, on behalf of the Technical Services Group (TSG) introduced ECE/TRANS/WP.29/GRSP/2022/8 aiming at clarifying the requirements for monitoring the chest deflection of the Q10 dummy as well as the correct measurement of the location of the thoracic spine. He also introduced ECE/TRANS/WP.29/GRSP/2022/9, complemented by GRSP-71-02, on behalf of the Ad-Hoc group on annex 25 (Spain, Germany, Netherlands, TSG, CLEPA) to amend the existing procedure of measuring the prescriptions of the minimum sitting height for booster cushions. GRSP adopted ECE/TRANS/WP.29/GRSP/2022/8 and ECE/TRANS/WP.29/GRSP/2022/9 not amended (to be combined with ECE/TRANS/WP.29/GRSP/2022/7). In the meantime, GRSP-71-02 was adopted for the sole purpose of helping the calculation of the minimum stature height (without any mandatory legal basis) as prescribed by ECE/TRANS/WP.29/GRSP/2022/9, and therefore GRSP-71-02 would not be submitted to WP.29 and AC.1 for adoption. The secretariat was requested to submit the proposals as part of (see para. 25 above) draft Supplement 8 to the 03 series of amendments to UN Regulation No. 129 (Enhanced child Restraint Systems) for consideration and vote at the November 2022 sessions of WP.29 and to the AC.1. Moreover, it was agreed that a new webpage under “reference material” on the website of WP.29 would be on the above-mentioned calculator (GRSP-71-02).