Motor Vehicles: Carbon Emissions
The question
To ask the Secretary of State for Transport, if she will publish the carbon assessment for the Zero Emission Vehicle Mandate.
Answered by Lilian Greenwood
The ZEV Mandate remains the Government’s largest single carbon saving measure. The carbon impacts of the ZEV mandate were summarised within the cost benefit analysis published alongside the original legislation.
On 7 April 2025, the Government announced policy changes to the ZEV Mandate to further support the UK’s automotive industry. The policy changes are expected to have a minor carbon impact when compared to the savings delivered by the ZEV Mandate as a whole. We estimate a 1% decrease (-4.2 Mt CO2) in CO2 savings from the original ZEV mandate (420 Mt CO2) across 2024 to 2050. A breakdown of this carbon analysis has been published alongside the government response.
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