This document discusses money laundering and provides guidance for preventing it. It defines money laundering and its purpose of concealing illegal proceeds. It requires money services businesses to establish anti-money laundering compliance programs with specific components. It also stresses the importance of strict customer identification policies and filing suspicious activity reports. The document then describes two successful operations, Polar Cap and C-Chase, that disrupted money laundering rings through coordinated law enforcement efforts and suspicious activity reporting. It concludes by discussing the Bank of Credit and Commerce International money laundering scandal and Operation Green Ice, an international sting operation against drug cartels.