Editors' Summary: As environmental laws throughout the world impose stricter requirements on corporations, international organizations are increasingly emphasizing the importance of corporate environmental auditing programs. This Article examines the principal environmental auditing programs applicable to corporations doing business in Europe. First, it discusses the European Union's Eco-Management and Audit Scheme. Next, it discusses environmental management standards issued by the International Organization for Standardization and the British Standards Institute. Finally, it examines the trade implications of environmental provisions in U.N. programs and international agreements such as the General Agreement on Tariffs and Trade and the North American Free Trade Agreement.