PASTEUR4OA will support the aim of encouraging the development of matching policies on open access and open data in the European Union according to the European Commission’s recent Recommendation on“Access to and preservation of scientific information” (July 2012) and in view of maximizing alignment with the Horizon 2020 policy on access to the research funded by the Commission. The project will help develop and/or reinforce open access strategies and policies at the national level and facilitate their coordination among all Member States. It will build a network of centres of expertise in Member States that will develop a coordinated and collaborative programme of activities in support of policymaking at the national level under the direction of project partners. The project will build on an already existing project, Mediterranean Open Access Network (MedOANet) capitalizing on its work and an already established network within Mediterranean Europe. Further, it will take advantage of the experience and extensive networks of organizations such as EOS (Enabling Open Scholarship), JISC (Joint Information Systems Committee), SparcEUROPE, LIBER (Association of European Research Libraries), EIFL, as well as prominent funding organizations that participate in the consortium, to secure a European-wide engagement of bodies of authority of the Member States with the project’s aims and extend its impact beyond Member States to neighbouring Accession States. More specifically, PASTEUR4OA will engage key national policy-makers, namely funders and research institution officials with decision-making power, in order to help them in improving and/or developing coordinated policies on open access in line with the Commission’s recommendations and Horizon 2020 policies. The project will map current policies and their effectiveness to those key-policy makers and bring them together in four regional meetings, as well as the project’s final meeting. It will encourage systematic exchange of model policies and best practices to achieve consistency across Member States in terms of Open Access policy and will produce briefing papers and other advocacy materials appropriate for policy-makers to be distributed in all countries and translated in as many languages as possible.