Agri-food supply chains have been linked to a number of negative environmental and social externalities, including environmental pollution, biodiversity loss, greenhouse gas (GHG) emissions and labour abuses and there are growing societal demands that such negative impacts should be addressed. This chapter considers the role of supranational policy, and regional and national policy in driving sustainability standards with regards to some of these issues and how they influence the strategies employed within individual organisations and across agri-food supply chains. The chapter also reviews developments in forms of hybrid governance and uses the example of the role of green finance to show how agri-food supply chain strategies are being reshaped.