Question to the Department for Transport:

To ask the Secretary of State for Transport, what steps her Department is taking to ensure that emissions from non-compliant diesel vehicles are fully accounted for in the modelling and monitoring underpinning the UK’s Net Zero Strategy.

Emissions projections for diesel vehicles used in the recently published Carbon Budget and Growth Delivery Plan account for the difference between reported vehicle CO2 emissions, tested using the World Light Duty Test Procedure, and emissions from vehicles operating in ‘real-world’ driving conditions.

The Department for Transport regularly reports its latest modelling and emissions projections to the Secretary of State for Energy Security and Net Zero as required by Section 13 of the Climate Change Act 2008.