The European University Association (EUA) agreed at its Council meeting on 23 October 2015 on the development of a roadmap to assist European universities in the transition to Open Access (OA). This initiative follows on from a recommendation made by EUA's Expert Group on Science 2.0/Open Science. The current roadmap focuses primarily on OA to research publications, as in the broader field of Open Science most progress has been accomplished in this area. It is intended as the first step in a series of initiatives that EUA and its Expert Group are developing to address the most pressing implications of Open Science, including, inter alia, OA to research data, copyright, data protection and text and data mining; new models of evaluation and quality assessment; digital literacy and awareness.