Question to the Department for Transport:

To ask the Secretary of State for Transport, what the terms of reference are of her Department’s investigation into the possible use of defeat devices by automotive manufacturers; how many brands and models are in the scope of the investigation; when she expects that investigation to conclude; and what steps her Department is considering taking against manufacturers who have been found to have broken the rules.

The DVSA’s investigations are being conducted under their obligations as the delegated the market surveillance authority within Regulation (EU) 2018/858 of the European Parliament and of the Council.

There are currently 95 vehicle models from 28 brands under investigation.

Due to the nature of the investigations, it is not possible to say when they are expected to conclude.

The investigations are focused on achieving real-world improvements in air quality. Non-compliant manufacturers will be required to rectify their vehicles and bring them into compliance with the relevant emissions regulations. If enforcement action is required, it will be taken in line with DVSA’s published enforcement policy.