Extended Producer Responsibility (EPR) is a policy approach that makes producers responsible for their products along the entire lifecycle, including at the post-consumer stage. This policy paper summarises the current consensus on the EPR policy approach. By taking stock of what's known and well established in the literature, it aims to foster a common understanding of the EPR approach and to provide guiding principles for its successful implementation. This paper makes a valuable contribution to an increasing number of policy debates and processes that are ongoing, both at national and international levels, in areas such as plastics, electric and electronic waste and textiles.