The Circular Economy is a paradigm which can contribute to reducing the economic, environmental and social costs of resource use, while at the same time strengthening economic competitiveness, reducing poverty, and providing a better quality of life, in line with relevant goals of the United Nations 2030 Agenda, and particularly SDG 12 aiming at advancing responsible consumption and production patterns. The Circular Economy can do so by keeping resource use at or below regeneration levels and designing waste and pollution out of production and consumption activities as far as feasible, inter alia through extending product lifecycles and broad sharing of assets. In so doing, it promises to improve economic efficiency and open up new economic opportunities, generating more and better jobs and higher incomes, and it will thus support countries in building-back-better after the COVID-19 pandemic. The transition to a Circular Economy is a priority in the United Nations Economic Commission for Europe (ECE) region, and the proposed project will support selected beneficiary countries in accelerating such a transition in key target areas, including: traceability of products along international value chains; sustainable public procurement; the management of waste. The project will address relevant challenges and opportunities in these three thematic areas, by: (i) creating a multi-stakeholder knowledge sharing network to develop and disseminate evidence-based good policy practices; (ii) supporting countries in implementing such Circular Economy practices through (a) the conduct of gap analyses to assess experiences and lessons learned and the development of policy recommendations and guidelines for discussion at policy dialogues at regional and national level, and (b) the conduct of advisory services and capacity-building workshops in project target countries.