Transboundary issues are today increasingly addressed through legal and regulatory processes in a variety of sites, domestic and international, private and public. Often sidelining international law in its classical form, this shift calls into question our traditional understanding of law, authority, legitimacy and accountability. This course aims to analyze important illustrations of transnational legal processes, ranging from standards, ranking and indicators to lex sportiva, credit ratings and corporate social responsibility, with a particular emphasis on their role in global governance and the various challenges that they raise.