HM Treasury has issued DAO 08/25, requiring accounting officers to obtain explicit Treasury consent before undertaking spending proposals involving private finance models for infrastructure or capital assets in which the public sector is involved. The guidance follows the November 2025 Balance Sheet Framework and February 2026 Green Book update, and requires robust monitoring, Infrastructure Pipeline reporting, and records of completed contracts signed since 2010. It responds to July 2025 Public Accounts Committee recommendations on managing infrastructure risks and creating a central database of private finance projects.