Written question asked by Greg Smith (Conservative) on Thursday, 14 May 2026, in the House of Commons. It was due for an answer on Monday, 18 May 2026. It was answered by Keir Mather (Labour) on Friday, 22 May 2026 on behalf of the Department for Transport.

Cars: Carbon Emissions

Question: To ask the Secretary of State for Transport, a) what estimate her Department has made, in each set of projections published since 1 January 2019, of the proportion of new car registrations that will be zero emission vehicles in 2027 under (i) central, (ii) low, and (iii) high uptake scenarios; b) on what dates those projections were published; and c) what assessment her Department has made of the reasons for any changes in those projections over time.

Answer: The latest published projections were included in the Cost Benefit Analysis accompanying the Vehicle Emissions Trading Schemes (Amendment) (No. 2) Order 2025. https://www.legislation.gov.uk/uksi/2025/1101/pdfs/uksiod_20251101_en_001.pdf .

Secondary information