Personal or sensitive data which have been collected for operational, commercial or governmental reasons need to be managed securely and safely for research. This data is held in Trusted Research Environments (TRE). TREs come in different shapes and sizes and all operate differently. Standardised Architecture for Trusted Research Environments (SATRE) aims to improve consistency across these TREs across the four nations. What is SATRE doing? • Engaging with the TRE community and the public to understand what works well, and what doesn't. • Identifying what it takes to build trust in a TRE, both for the research community and for wider society. • Being fully open and transparent throughout the project for the benefit of stakeholders and the public. SATRE is establishing the building blocks for a national data research infrastructure responding to the DARE UK programme Phase 1: Design and Dialogue recommendations. We are achieving this via co-development with public, academic and industrial stakeholders and community building with the UK-wide TRE community. It is a response to the reference architecture DARE UK Driver Project call and will, by the end of the project, have developed a TRE specification informed by the needs and requirements of the UK data research community. DARE UK aims to: Design and deliver a novel and innovative UK-wide data research infrastructure that is coordinated, demonstrates trustworthiness and supports research at scale for public good. • Establish the next generation of TREs that will enable fast, safe and efficient sharing, linkage and advanced analysis of data, where it is legal and ethical to do so. • Enable UK researchers and innovators to securely and efficiently harness the full power of linked datasets, modern digital platforms, tools, techniques and skills. • Enable research and analysis on a broad range of potentially sensitive data from across the UK research and innovation spectrum. Why is PIE important in the delivery process? The aim of SATRE is to create a community-led standardised architecture for TREs and the public are an important part of that community. Since TREs hold sensitive personal data and provide access to it for public benefit it is important to get their views and reflect them in the SATRE specification. SATRE has produced a technical and governance specification with a set of principles to guide TREs. Both the specification and the principles will reflect building TREs which can be trusted by the public. Statements will include how TREs should be involving the public in their work as well as transparency. This report summarises and evaluates the Public Involvement and Engagement activities which took place as part of this project.