Document GRPE-87-16/Rev.1
UN R85: Proposal to amend GRPE/2023/7
Status: Superseded
Submitted by OICA

Proposal to promote harmonisation in use of reference fuels for testing, including hydrogen fuel, based on the following justifications:

  1. The use of test fuels is permitted for certification testing of gaseous and particulate pollutants and power/smoke testing in Europe. However, other countries that have adopted and referenced UN R85 may not allow this. In this case, manufacturers have to prepare fuels with different characteristics, which is costly and requires a long time due to the current inconsistent situation.
  2. We believe that the use of test fuels for gaseous and particulate pollutant measurement tests should be a priority as a precondition for the introduction of more stringent emission levels.
  3. Hydrogen fuelled vehicles are covered in UN Regulation No. 83, but hydrogen is not yet covered in UN R49 and UN R85.
  4. Hydrogen fuelled engines could be one complementary option to reduce CO2 emissions of future heavy-duty vehicles.
  5. Therefore, hydrogen fuel should be integrated in UN R49 and UN R85 for better alignment with UN R83.

Discussions and Outcomes
190th WP.29 session (19-22 Jun)
This proposal (WP.29/2023/64) was adopted by the World Forum. Thirty-two Contracting Parties out of the 50 applying UN R85 were present for the vote by AC.1. Thirty-two voted in favor with zero against and zero abstaining.
87th GRPE session (10-13 Jan)

58. The representative from OICA introduced ECE/TRANS/WP.29/GRPE/2023/7, as amended by GRPE-87-16-Rev.1. He added that an alignment of this proposal with UN Regulation No. 24 was expected in forthcoming sessions of GRPE.

60. GRPE adopted ECE/TRANS/WP.29/GRPE/2023/7 as amended by GRPE-87-16-Rev.1 as reflected in Annex XI to the session report and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their June 2023 sessions as draft new supplement to UN Regulation No. 85 (Measurement of the net power and the 30 min. power).