The United States Anti-Doping Agency (USADA) is a non-profit organization responsible for promoting clean sports in the United States. It was established in 2000 to ensure that athletes compete fairly and without the use of performance-enhancing drugs. USADA conducts drug testing, educates athletes about doping, and enforces anti-doping rules. USADA works closely with various sports organizations, including the Olympic Committee, to maintain the integrity of athletic competitions. The agency also provides resources and support for athletes to help them understand the risks of doping and the importance of fair play in sports.