Written Question·Department for Transport·UIN 94223
Diesel Vehicles: Exhaust Emissions
Tabled: 25 November 2025
Answered: 1 December 2025
Named DayQuestion
Helen Hayes
Labour — Dulwich and West Norwood
To ask the Secretary of State for Transport, what steps she is taking to investigate the use of defeat devices in diesel vehicles.
Answer
Simon LightwoodThe Driver and Vehicle Standards Agency’s Market Surveillance Unit (MSU) is investigating cases of possible non-compliant diesel emissions in cars and vans. The investigations aim to ensure any non-compliance found is fixed as soon as reasonably possible,...
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