22. The expert from Germany introduced ECE/TRANS/WP.29/GRSP/2022/24, on new provisions to cope with the Adjustable Ride Height Suspension System (ARHSS). GRSP also considered GRSP-71-15-Rev.3 amending ECE/TRANS/WP.29/GRSP/2022/24. GRSP adopted ECE/TRANS/WP.29/GRSP/2022/4 as amended by annex II (GRSP-71-15-Rev.3) to the report. The secretariat was requested to submit the proposal as the draft 04 series of amendments to UN Regulation No. 127 (Pedestrian Safety) for consideration and vote at the November 2022 sessions of WP.29 and AC.1. Moreover, GRSP agreed that the GRSP Chair would seek guidance at the WP.29 June 2022 session, highlighting the May 2022 session of GRSP, concerning the interpretation of the acceptance of type approvals to the preceding series of amendments (singular or plural) to be mentioned in transitional provisions of UN Regulations in general. In the meantime, GRSP agreed that the expert of Japan (Ambassador of IWVTA to GRSP) would inform the meeting of IWVTA IWG about this issue prior to the June 2022 session of WP.29.

19. The expert from Germany introduced GRSP-70-17 (superseding ECE/TRANS/WP.29/GRSP/2019/18), concerning new provisions to cope with Adjustable Ride Height Suspension System (ARHSS). GRSP agreed to distribute GRSP-70-17 with an official symbol at its May 2022 session, as draft 04 series of amendments to UN Regulation No. 127.

20. The expert from Germany reiterated his proposal (ECE/TRANS/WP.29/GRSP/2019/18) and referred to agenda item 3(a) (see paragraph 4). The expert from OICA introduced GRSP-67-07 as a counterproposal, aimed at clarifying the issue that vehicle height has an influence on the test results of headform and legform tests, and consequentially all possible vehicle heights up to a driving speed of 11.1 m/s (40 km/h) should be considered to be relevant for impact with a pedestrian. Germany stated its agreement, in general, with the OICA proposal but suggested further clarifications. GRSP agreed to resume discussion at its December 2020 session on the basis of a potentially revised proposal from the experts of Germany, the United Kingdom and OICA.