39. The representative from OICA introduced GRPE-86-25 as an update about the inclusion of hydrogen as a fuel in UN Regulations No. 49 and 85 and informed GRPE that the consideration of ECE/TRANS/WP.29/GRPE/2022/21 would be postponed until the next session of GRPE. GRPE agreed to postpone the consideration of this issue to forthcoming sessions of GRPE.

40. The representative from OICA introduced ECE/TRANS/WP.29/GRPE/2022/22 and ECE/TRANS/WP.29/GRPE/2022/23 on reference fuels allowed to be used when performing tests according to UN Regulations Nos. 24 and 85. The representative from the UK found the proposals acceptable and would be willing to adopt after removal of the square brackets. The representative from the European Commission required proposals to be bundled so regulatory texts are not updated at every GRPE session, that increases the administrative burden and might be perceived as bad legislative development. The representative from Italy stated he would be willing to adopt the proposals in this session to facilitate adoption and certification processes around the globe. The representative from the European Commission suggested to only adopt ECE/TRANS/WP.29/GRPE/2022/22 in this session and to bundle all proposals to amend UN Regulation No. 85 at forthcoming sessions of GRPE, including ECE/TRANS/WP.29/GRPE/2022/23. GRPE agreed with this approach.

41. GRPE adopted ECE/TRANS/WP.29/GRPE/2022/22 as amended during the session and reflected in Annex VII to the session report and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their November 2022 sessions as draft new supplement to the 03 series of amendments to UN Regulation No. 24 (Visible pollutants, measurement of power of C.I. engines (Diesel smoke)).