The article explores research integrity training for PhD-students as a site of production of academic cultures and researcher development. Based on ethnographies of four courses in research integrity, conducted in four faculties of a large comprehensive Danish university, the article explores the vital role of academic developers, teachers, and course participants in the active translation of institutional, national, and international policies into research practices. We argue that doctoral training in research integrity does not entail the direct implementation of policy and codes from above; rather, it is a site for the development and negotiation of the meaning of research integrity in disciplinary cultures and standards, and, critically, for the responsibilisation of individual researchers in policy enactment. We show how doctoral training has become a key site for the emergence of research integrity as a field. It is also a privileged site for researching contested and multidirectional processes of policy formation and implementation.