UN Regulation No. 49
Diesel and CNG/LNG Engine Emissions
← Revision 5 | Amendment 8
Revision 5 | Amendment 9
Revision 5 | Amendment 9 | Corrigendum 1 →
19 Mar 2025
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Revision 5 | Amendment 9 reproduces the following amendment(s):
UN R49: Proposal for Supplement 12 to the 05 series of amendments

Proposal to permit the use of hydrogen (H2) as fuel for emissions type-approval of heavy duty vehicles.

Authentic and legally binding text WP.29/2024/45