New WLTP regulation on emissions and fuel consumption measurement for passenger cars and light commercial vehicles
26 Jun 2026
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Who is affected:
Vehicle manufacturers, importers, type-approval authorities and EU technical authorities
Summary
The international regulation governing how CO2 emissions and fuel or electric energy consumption are measured in cars and light commercial vehicles through the WLTP cycle is updated.
Detailed analysis
PRO
This UN regulation, adopted by the EU, establishes uniform type-approval procedures for passenger cars and light commercial vehicles regarding reference emissions, CO2, fuel consumption and electric range under the WLTP protocol. It directly affects vehicle manufacturers and type-approval authorities that must comply w…
Full official title
OJ:L_202601130: Reglamento n.o 154 de las Naciones Unidas. Disposiciones uniformes relativas a la homologación de turismos y vehículos comerciales ligeros por lo que se refiere a las emisiones de referencia, las emisiones de dióxido de carbono y el consumo de combustible o la medición del consumo de energía eléctrica y la autonomía eléctrica (WLTP) [2026/1130]