PSA Group has completed the re-homologation of its model ranges from the Peugeot, Citroen, DS and Vauxhall brands.

This means all its vehicles can be registered after September 1, when the new regulations take effect.

The Worldwide Harmonised Light Vehicle Test Procedure (WLTP) is a more rigorous and longer test developed to better reflect real driving consumption and emissions than the previous NEDC test.

All new models introduced since September 2017 have already been required to undergo the new test, but now all existing models must also be retested.

Gilles Le Borgne, executive vice president for Quality and Engineering at Groupe PSA, said: “Our technological choices to treat pollutant emissions, such as SCR for all diesel engines launched in 2013 and more recently the GPF for gasoline engines with direct injection, allow us to offer to our customers, compliant and environmentally friendly vehicles; and to keep our leadership on reducing emissions.”

The next step will be the future Euro 6D-Temp standard, which will apply from September 2019.

It will also take into account the pollutant emissions (NOx, PN) measured in real-world driving conditions on open roads or Real Driving Emissions (RDE).

Vauxhall has been preparing its portfolio for the introduction of the new standards for several years and its entire passenger car range – without any restrictions – meets these new requirements.

The Luton brand says it is “WLTP-ready” with all its passenger cars and customers can order the whole range, from Adam to Insignia, without having to fear lengthy delays in delivery.

CO2 Emissions for key fleet models such as the Insignia and Astra have increased, leading to those vehicles being pushed into higher BIK bands.

Peugeot, Citroen and DS vehicle share the same new generation PureTech petrol and BlueHDi diesel engines, which benefit from new technologies in terms of emission controls. Two of the most efficient technologies are SCR, on BlueHDi diesel engines, and PPF – a new particle filter system – on direct injection petrol engines.