Feed safety remains an issue for both the health of livestock and as a prerequisite for food safety. Risk assessment plays a role in identifying and determining potential risks of contaminants. When contaminants limits are defined, risk management systems can be designed for prevention and control. Finally, risk communication covers the technical information shared between governments, academia, the different players involved in feed production, and the public. This chapter focuses on management systems used to prevent and control contaminants in animal feed. A brief introduction to feed contaminants and new feed ingredients is given, followed by a description of the main risk management systems applied in Europe and the US.