Government’s ‘green book’: Review and reforms
The Government’s ‘green book’ is guidance on how to appraise public sector policies, programmes and projects. In January 2025, the Chancellor of the Exchequer Rachel Reeves announced a review of the green book. The review’s conclusions were published in June 2025 and are designed to improve the effectiveness of public sector appraisal. The Treasury will release an updated green book in early 2026.
