Background Each year European public authorities spend the equivalent of 16% of EU gross domestic product on the purchase of goods – such as office equipment, building components and transport vehicles – and services, such as building maintenance, transport services, cleaning and catering services and works. This public procurement can shape production and consumption trends and a significant demand from public authorities can create or enlarge markets for environmentally friendly products and services. Objectives The project aims to mainstream sustainable public procurement (SPP) in Portugal and Greece by: 1. Assisting public authorities in implementing a procurement strategy in line with their economic, social and environmental policies; 2. Encouraging co-operation among public procurers; 3. Promoting greater market engagement among public procurers and suppliers. The project will focus mainly on public authorities. Private organisations will be addressed through the adaptation of some of the instruments produced within the project, namely the SPP Toolbox. The project will test approaches to develop a procurement strategy that takes into account and contributes to the targets of all relevant policies of the given public authority. The project will enhance awareness, networking, collaboration and training in sustainable procurement for procurers and suppliers. Expected results: The project will deliver results both at micro and macro level. At micro level, two types of results are expected: The establishment of national sustainable procurement networks in Portugal and Greece, supported by: a communication platform; a good practice catalogue; and studies on the integration of social and environmental criteria and its impact on the market. These networks will foster capacity building in sustainable procurement and will promote market involvement. The application of sustainable procurement at organisation level, resulting in the development of a step by step guide on how to implement sustainable procurement at strategic and operational level, complemented by training material. At macro level, the experience and knowledge obtained will be used to develop recommendations to the national green public procurement strategies.