WLTP emission standard active from September 1st
From September 1st all new homologated cars will be evaluated with the new Worldwide Light Vehicle Test Procedure (WLTP) emission standard. It replaces the European NEDC in use since the 80’s.
All new cars have to be subjected to homologation tests including fuel consumption, CO2 emission and other harmful emissions such as small particulates and NOx. The current NEDC (New European Driving Circle) in place since the 80’s is not up to the task, often giving unrealistic consumption data.
New models first
The new WLTP standard will be slowly introduced, applied first on new models requiring homologation from September 1st. Starting September 2018, all models, old and new, will have to go through the WLTP test.
The WLTP standard is based on new tests and new technology that gives the opportunity to test multiple scenarios (urban and extra-urban traffic, secondary roads and motorways) with longer test on greater distances and with different driving styles. They will still be elaborated in a laboratory environment, not to be influenced by weather of traffic density.
According to the federation of the automotive industry FEBIAC, the WLTP tests are more realistic with higher speeds and faster accelerations. “On average, the WLTP method shows 20% higher consumption and emission values than the NEDC tests”, explains FEBIAC.
“For now, these higher values will have no impact on road taxes”, emphasizes Flemish Finance Minister Bart Tommelein (Open-VLD), “as long as the legislation is not adjusted, the old system remains in place”.