This study reviews the current use of Open Educational Resources in Adult Education, assesses its potential and makes recommendations for policy interventions, taking account of the European Commission’s policy frameworks. It incorporates new research on over 12 Member States, leveraging on a synthesis of existing research from a range of projects including POERUP (Policies for OER Uptake) and a 2014-15 study on Shared OER for the Joint Research Centre, augmented by two more recent studies for JRC and LLP.