This paper takes stock of the institutional set-ups, mechanisms and practices used by governments, and in particular centres of government, to steer climate change policy. To respond effectively to climate change, governments need decision-making and co-ordinating processes that reflect the complexity and pressing nature of the climate crisis, the multitude of stakeholders involved, and the need to balance between short-term and long-term policy objectives. With their unique positioning, centres of government in OECD Member countries often play a crucial role in providing leadership and co-ordination for climate policy. The first part of this paper identifies the institutional arrangements, mandates and skillsets of centres of government for climate-related action. The second part analyses the centre’s stewardship role at different stages of the policy cycle, touching on strategic planning, co-ordination, the development of evidence-informed policies, and monitoring as well as overall efforts to “green” public administrations.