HIWU will oversee testing, educate stakeholders on the new program, accredit laboratories, investigate potential violations, and prosecute any such violations.


The Horseracing Integrity & Welfare Unit (HIWU) was established in 2022 by Drug Free Sport International (DFSI) to administer the rules and enforcement mechanisms of the Horseracing Integrity and Safety Authority’s (HISA) Anti-Doping and Medication Control (ADMC) Program.

HIWU oversees testing, educating stakeholders on the ADMC Program, accrediting laboratories, investigating potential violations, and prosecuting any such violations.

The ADMC Program establishes a centralized testing and results management process and applies uniform penalties for violations efficiently and consistently across all American Thoroughbred horse racing jurisdictions that HISA governs.

Drug Free Sport International (DFSI) is a worldwide leader in the sport drug testing industry. It administers comprehensive drug testing programs, manages national and international collections, develops drug testing policies, and provides educational services to a wide range of professional and amateur athletics organizations around the world. Its highly educated, experienced, and diverse staff is committed to quality, technical innovation, and maintaining the most extensive network of highly trained and certified sport drug testing collectors in the industry. Its business partners include the National Football League (NFL), National Basketball Association (NBA), National Collegiate Athletic Association (NCAA), Ladies Professional Golf Association (LPGA), PGA Tour, NASCAR, and Major League Baseball (MLB).

About DFSI

About HISA

The Horseracing Integrity and Safety Authority (HISA) was established when the Horseracing Integrity and Safety Act was signed into federal law in 2020 and is responsible for drafting and enforcing uniform safety rules and anti-doping and medication control rules in Thoroughbred racing in the U.S. Overseen by the Federal Trade Commission, HISA is composed of two programs: the Racetrack Safety Program and the ADMC Program.