This short paper considers all possible stakeholders in different stages of a sustainability transition and matches their behavioural features and diversity to policies. This will involve an assessment of potential or expected responses of stakeholders to a range of policy instruments. Following the Multi-Level Perspective framework to conceptualise sustainability transitions, we classify the various transition policies at niche, regime and landscape levels. Next, we offer a complementary classification of policies based on a distinction between social preferences and bounded rationality. The paper identifies many barriers to making a sustainability transition and how to respond to them. In addition, lessons are drawn from the case of Denmark. The detailed framework and associated literature for the analysis was discussed in Milestone 31 of the WWWforEurope project.