Government Publishes Updated Green Book

The Government’s Green Book sets out how public spending decisions are appraised and evaluated, forming the basis of business cases across government, including transport: The Green Book - GOV.UK

We welcome the publication of the updated Green Book and HM Treasury’s continued focus on keeping it relevant and effective. The new version reflects last year’s Green Book Review, which the TPS welcomed for its emphasis on clearer objectives, stronger strategic cases, better consideration of place, and a shift away from over-simplistic value-for-money metrics.

As the TPS set out in its response to the Review, what matters most for transport is how these principles are reflected in the Department for Transport’s detailed appraisal guidance, including Transport Analysis Guidance and the Value for Money Framework. We have previously called on the DfT to use the updated Green Book to support more proportionate appraisal, clearer treatment of transformational change, improved handling of carbon and wider outcomes, and greater transparency for decision-makers.

We would welcome the opportunity to work with DfT to help translate the updated Green Book into practical, usable guidance for transport planners,