This book provides comprehensive analysis of the UK Procurement Act 2023 for practising lawyers and anyone else with a professional interest in in the application of this important post-Brexit regime. It sets out the text of the Act chapter-by-chapter with accompanying commentary. In doing so the authors cover a broad range of issues, including: Reviewing how the legislation is to be understood in a post-Brexit context, focussing on the key innovations brought forward in the Act Contextualising developments, describing the various relevant international instruments such as the WTO Government Procurement Agreement Setting out the consequences of departure from the EU and detachment from EU procurement law Providing detailed discussion of the body of regulations, guidance, and other soft law that frames the content of the Act and will deliver effects of the legislation Addressing the interface with other related public procurement regimes falling outside the Act, such as the Provider Selection Regime in the NHS. Written and prepared by a team of professional and academic experts who have decades of experience of procurement law between them, this is the essential text for practitioners working on a procurement dispute or advisory situation.