The purpose of this proposal is to show the implementation of local public policies of SD (SD) in the region of Nord – Pas de Calais (North France) lies on new modalities of administration of its public agencies. SD seems to enhance a quiet criticism that questions civic and industry legitimacy of public organisations. The former is based on participative procedures that competes or completes the usual civic electoral proof of reality. The latter comes from a new mode of administration that decompartmentalizes the old division of labour through a transversal organisation. These two elements lead to the establishment of sustainable projects supporting new institutional governance, which is the real heart of a consensual SD. We recognize the mode of coordination at stake in “The New Spirit of Capitalism” [Boltanski and Chiapello, 1999] at the root of neo-liberal corporate management. Contrary to all expectations, it seems that there lies a certain degree of proximity between the modes of administration of the public organisations as far as SD is concerned and the way neo-liberal firms are managed. Furthermore the extension of the firms’ stakeholders blurring its frontiers put forward issues of Corporate Social Responsibility (CSR). Then SD issues of legitimacy bring closer neo-liberal firms and public administrations for it renews in both cases questions of governance. Although sustainable policies deeply changes how public administrations are organised (if we put issues of implementation aside), it seems that CSR keep being in the line with Capitalism.