In the last decades new models of development considering the integration between the economic and ecological systems have appeared as in response to the scarcity of resources and environmental impacts, the circular economy is one of these models. The decision-making in this context is affected by the obligations arising from related legislation and, it is characterized as multifaceted. This problem involves multiple stakeholders, such as: manufacturing companies, suppliers, retailers, consumers, public authorities, suppliers’ services, non-governmental organizations, research organizations and, consequently, several conflicting interests. In this way, analyzing the existent policies and legislations related to CE and the respective interests related to stakeholders becomes essential to define strategies to fully implement CE. Thus, the objective of this study is to analyse the current policies, strategies and initiatives related to circular economy transition, comparing the realities in Brazil and Italy. To achieve this objective, it was conducted a literature review and a documental analysis to identify the level of institutionalization of the transition of the circular economy. As main results we can highlight that Italy presents a superior stage of development when compared with Brazil, which was already expected, considering that besides to be considered a developed country, Italy is in European Community which institutionalize for the members-countries some rules to be followed. Although Brazil presents the lowest level of institutionalization, it is possible to observe several advances. This research may be useful for policymakers, researchers and practitioners in decision-making related to the context of transition towards a circular economy.