In addition to examining company-external factors, the ReInCent research project took a special look at company-internal factors that can promote or counteract rebound effects. On this basis, approaches for policy instruments were developed that take these factors into account and avoid rebound effects. These approaches are evaluated in the fourth and final working paper of the ReInCent project. The article thus addresses the question of which environmental policy instruments can sensibly accompany the pricing of CO2 in order to effectively avoid rebound effects in companies.