The document outlines the goals of the Pasteur4OA project, which aims to enhance understanding and development of open access (OA) policies aligned with European Commission directives and Horizon 2020. It emphasizes the creation of a coordinated network of expert organizations to support policymakers across Europe, focusing on the implementation and compliance of OA regulations. Future steps include the integration of the knowledge network into OpenAIRE 2020, facilitating ongoing collaboration and advocacy for open access policies.