Proposal to permit the use of hydrogen (H2) as fuel for type approval of heavy-duty vehicles and to explicitly permit the usage of the reference fuel required for emission testing when the manufacturer applies for UN Regulations Nos. 24 and/or 49 type approval at same time.
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.