40. GRSP resumed consideration of ECE/TRANS/WP.29/GRSP/2021/29, tabled by the expert from Germany aimed at extending the condition of the necessity of an influence on the test results of the impact test to all criteria. GRSP adopted ECE/TRANS/WP.29/GRSP/2021/29, amended by annex VI to the session report. The secretariat was requested to submit the proposal as draft Supplement 3 to UN Regulation No. 153 for consideration and vote at the June 2023 sessions of WP.29 and AC.1.

41. Under agenda items 7, 12 and 14 (see paragraphs 22, 35 and 37), the expert from OICA introduced GRSP-72-32 to harmonize already existing provisions on hydrogen fuelled vehicles of UN Regulation No. 153 to the provisions of UN GTR No. 13, Amendment 1. GRSP requested its experts to provide feedback on GRSP-72-32 to the expert from OICA before the deadline for submission of official documents for its May 2023 session.