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- Book, fraud risk management and cross-government working
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New link to the Green Book and its collection of accompanying guidance and materials collection page to improve signposting.
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Updated for 2022
Update history
2026-04-01 14:00
The guidance has been updated to reflect reforms to the public spending control and accountability framework announced at Budget 2025, including a single integrated approval point in HM Treasury incorporating the expertise of central functions, reforms to the GMPP, and data sharing between departments and HM Treasury, including NISTA, and the central functions. It also incorporates new content on the scrutiny and approval of mega projects, the role of NISTA, and expectations on transparency and reporting after approval. The guidance has also been restructured to make it clearer and easier to navigate.
2024-04-18 10:00
Updated: Increased emphasis on the early scrutiny of spending proposals, with an explicit requirement for departments to secure Treasury approval of Strategic Outlines Cases for the most significant government projects. New flexibilities for Treasury to delegate approval of specific business cases to departments in certain circumstances. New guidance on how major project ‘resets’ interact with the Treasury Approvals Process. Various drafting clarifications, as well as updated references to the Magenta Book, fraud risk management and cross-government working
2022-11-18 13:30
New link to the Green Book and its collection of accompanying guidance and materials collection page to improve signposting.
2022-03-30 12:00
Updated for 2022