28. The representative from the UK introduced ECE/TRANS/WP.29/GRPE/2022/3 as amended by GRPE-85-47 and during the session, as reflected in Annex IV to the session report. The representative of France, the Netherlands, Spain, Sweden and the EC supported the proposal.

29. GRPE adopted Annex IV and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their June 2022 sessions as draft Supplement 1 to the 07 series of amendments to UN Regulation No. 49.

30. The representative from OICA introduced GRPE-85-28 and GRPE-85-41 on the addition of hydrogen (H2) as a fuel for internal combustion engines in UN Regulation No. 49. The representative from Germany sought clarifications on how Ugas factors were calculated in the case of H2. The representative from the EC added that the activity was held in common between OICA and the EC, also aiming at capturing potential decarbonization benefits to be included in the European VECTO tool. The representative from the EC, from the Joint Research Center (JRC), added that a validation exercise with OEMs was on-going, and close collaboration with OEMs was needed as the technology was not available on the market at the present time. He added final results were expected by the end of 2022. The representative from the Netherlands was supportive of the intention of the proposal and asked for some editorials corrections to be included (for example on the need to separate gaseous from liquified H2 in some instances).

31. The representative from OICA agreed the text was still in progress and informed GRPE that an update will be provided at the next GRPE session if a final proposal was not prepared on time for adoption by GRPE.