The following information is for the HISA Anti-Doping and Medication Control Program and the Horseracing Integrity & Welfare Unit, which handles equine drug-testing and enforcement for HISA.

The regulations as published in the Federal Register are available here.

The FTC has taken comments on the proposed regulations. Comments can be submitted at

The draft regulations developed in 2022 appear below for reference purposes.

Definitions (Series 1000)

Equine Anti-Doping and Controlled Medication Protocol (Series 3000)

Prohibited List (Series 4000)

Equine Testing and Investigation Standards (Series 5000)

Equine Standards for Laboratories and Accreditation (Series 6000)

Arbitration Procedures (Series 7000)

Prohibited Substances Technical Document submitted to FTC

The following are PDF references prepared by HISA or the THA to explain the basics of the testing program:

HIWU: Understanding the Prohibited List

HIWU: Types of Tests Under the Program

THA: Quick Reference Guide on withdrawal guidelines for Controlled Therapeutic Substances

HIWU: Link to public disclosures regarding pending cases involving controlled medications or banned substances

Guidance updates from HISA and HIWU:

Intra-articular injections (effective July 16, 2023)