The International Marketing Supervision Network (IMSN) is a membership organization consisting of the trade practices law enforcement authorities of more than two dozen countries, most of which are members of the Organization for Economic Cooperation and Development (OECD).  The mandate of the Network is to share information about cross-border commercial activities that may affect consumer interests, and to encourage international cooperation among law enforcement agencies. The Network operates under a rotating presidency, currently held by Norway. The working languages of the Network are French and English.