Question to the Department for Transport:

To ask the Secretary of State for Transport, with reference to the report by the International Council on Clean Transportation entitled Reassessment of excess NOx from diesel cars in Europe following the Court Justice of the European Union rulings, published on 22 March 2023, what assessment he has made of the implications for his policies of that report's findings on the prevalence of illegal technology that tampers with emission controls.

The Government is committed to reducing air pollution from all forms of transport, which has significantly reduced since 2010. Emissions of nitrogen oxides have fallen by 45% and emissions of PM2.5 by 10% since that date.

The DVSA Market Surveillance Unit will continue to conduct a vehicle-emissions testing programme to monitor vehicle emissions performance and address non-compliance where identified.

Since 2015, there have been 134 manufacturer recalls or non-code actions involving a total of 1.85 million vehicles to amend or upgrade emissions systems. Not all action will have been to address non-compliance.