Question to the Department for Business, Energy and Industrial Strategy:

To ask the Secretary of State for Business, Energy and Industrial Strategy, what steps he is taking to ensure that future impact assessments considering the impact on net zero targets of Government policies are as (a) transparent, (b) accurate and (c) reliable as possible.

Impact Assessments use a sound evidence base and are assessed for their quality by the independent Regulatory Policy Committee. Impact assessments are subsequently published online for transparency. HM Treasury publishes the Green Book guidance on how to appraise the impacts of government policy. As part of this, BEIS publishes supplementary guidance to the Green Book, on how to estimate the impacts on energy and greenhouse gas emissions based on the latest science and in line with internationally recognised standards: https://www.gov.uk/government/publications/valuation-of-energy-use-and-greenhouse-gas-emissions-for-appraisal.