18. The representative from Japan introduced ECE/TRANS/WP.29/GRPE/2023/16, amended by GRPE-89-16 and ECE/TRANS/WP.29/GRPE/2023/17, amended by GRPE-89-17.

19. The representative from OICA thanked the good collaboration between all involved parties and regretted the premature discontinuation of the IWG on WLTP. He also raised some concerns about the use of utility factors for OVC-HEVs, and the way date of entry into force of successive stages are drafted in the proposal. He wondered if the various dates should be moved to the dedicated section on transitional provisions.

20. The Chair asked if such approach would have any impact on the proposed 08 series of amendments to UN Regulation No. 83 to be adopted by WP.29 at its June 2023 session. The representative from OICA states any modification to the 08 series of amendments to UN Regulation No. 83 would be reflected in a supplement to be prepared for forthcoming sessions of GRPE.

21. The representative of the European Commission highlighted all contracting parties agreed with the existing proposal and mentioned his willingness to look into the issue raised by OICA during the session.

22. Following side meetings during the session, GRPE-89-16-Rev.1 and GRPE-89-17-Rev.1 were introduced to GRPE by the representative of Japan.

23. The representative of the European Commission agreed with the proposal but requested a scrutiny reserve in case unintended consequences had been introduced in the proposals. He also regretted the absence of some important EU member states from the discussions. He nevertheless confirmed this should not prevent from adopting the proposals.

24. The Chair congratulated the involved parties to finalize proposals to be considered by GRPE. The representative of Japan sought further clarifications in case the European Commission would find some issue with the proposals. The secretariat explained the different possible scenarios where the timing and magnitude of the potential error(s) would have an impact on the possible solutions. He confirmed the aim would be to submit the proposals to vote at the November 2023 session of WP.29/AC.1.

25. GRPE adopted ECE/TRANS/WP.29/GRPE/2023/16 as amended by GRPE-89-16-Rev.1 as reflected in Addendum 1 and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their November 2023 sessions as draft new supplement to the 02 series of amendments to UN Regulation No. 154 (WLTP).

26. GRPE adopted ECE/TRANS/WP.29/GRPE/2023/17 as amended by GRPE-89-17-Rev.1 as reflected in Addendum 2 and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their November 2023 sessions as draft new supplement to the 03 series of amendments to UN Regulation No. 154 (WLTP).

27. The representative from AVERE said they were looking into preparing a proposal to amend Annex B8 to consider the possibility for complete discharge/charge before performing the shortened test procedure, to save testing time in case of large battery capacity fitted to some vehicles.

28. The Chair welcomed a written proposal by AVERE on the topic in forthcoming sessions of GRPE.

29. The representative from OICA introduced GRPE-89-15. The representative from the European Commission agreed with most of the content of the proposal, showed some reservation on amending the definition of “vehicle type”, and made a suggestion on the proposal to amend para. 3.3. He finally sought some clarifications about the timing of the proposal and its potential adoption by WP.29 at its June 2023 session.

30. The Chair clarified slight editorial modifications would be possible at the June 2023 session of WP.29 and asked whether this proposal could be formally considered by GRPE at its next session.

31. The representative of OICA clarified OICA was expected to develop a formal proposal for the next session of GRPE. He explained that the existing definition of vehicle type might lead to some inconsistencies between interpolation family and inertia classes. The GRPE confirmed that a proposal on vehicle type will be discussed in the next GRPE session.

32. The representative of Australia introduced GRPE-89-22. The representative of OICA emphasized the proposed UN Regulation on RDE did not offer the possibility to choose an equivalent to Euro 6d levels and referred to a proposal raised in previous sessions of GRPE (GRPE-87-09) to include levels in UN Regulation on RDE.

33. The representative of Australia emphasized Australia was keen to keep using UN legal instrument as part of their legislative framework to reduce the administrative burden and minimize technical barrier to trade.

34. The Chair noted conformity factor were different between Euro 6d and Euro 6e levels, and encouraged Australia to use the complete package of 08 series of amendments to UN Regulation No. 83, 03 series of amendments to UN Regulation No. 154 and UN Regulation on RDE to get the state-of-the-art regulatory package for tailpipe pollutant emissions. He further mentioned there was no immediate solution to provide a regulatory package equivalent to Euro 6d levels.

35. The representative of Australia understood the complexity of developing the desired solution for the country and hoped a solution could be found in the near future.

36. The representative of OICA introduced GRPE-89-19 and GRPE-89-20 and announced formal proposals were expected for the next session of GRPE.