Horse Protection Act — Preventing Soring

The Horse Protection Act (15 U.S.C. §§ 1821–1831) makes it a federal crime to show, sell, auction, or transport a horse that has been sored — the deliberate infliction of pain to a horse's legs or hooves to produce an exaggerated, high-stepping gait prized in certain show rings, most notably Tennessee Walking Horse competitions. Soring methods include applying caustic chemicals (mustard oil, diesel fuel, kerosene) to a horse's pasterns, inserting foreign objects between the hoof and shoe, and using heavy chains or weighted boots on chemically irritated skin. The practice is cruel, deceptive, and illegal — yet it has persisted for decades because the financial incentives of winning at horse shows and the limitations of the original enforcement framework created a system where violators could evade detection.

Current Law (2026)

Legal Authority

• 15 U.S.C. § 1821 — Definitions (defines "horse," "sore," "person," "Secretary," "horse show," "horse exhibition," "horse sale or auction," and the critical definition of "soring" — any practice that causes pain or distress to a horse's limb to affect its gait)
• 15 U.S.C. § 1822 — Congressional statement of findings (Congress finds that soring is cruel, that sored horses are regularly shown and sold in interstate commerce, and that federal legislation is necessary to prevent this practice)
• 15 U.S.C. § 1823 — Horse Protection requirements (makes it unlawful to show, exhibit, enter, sell, auction, or transport any horse that is sore; requires management of shows to disqualify sore horses and to hire qualified inspectors)
• 15 U.S.C. § 1824 — Unlawful acts (prohibits specific acts including showing a sore horse, failing to disqualify a sore horse from a show, failing to keep required records, and transporting a sore horse)
• 15 U.S.C. § 1825 — Penalties (criminal fines up to $3,000/$5,000 and imprisonment up to 1/2 years; civil penalties up to $2,000; disqualification from showing for 1-5 years; license suspension or revocation for industry organizations)
• 15 U.S.C. § 1828 — Rules and regulations (Secretary of Agriculture authorized to prescribe regulations for enforcement)
• 15 U.S.C. § 1829 — Preemption (federal law does not preempt state or local laws that provide equal or greater protection for horses)
• 15 U.S.C. § 1831 — Notice of violations (USDA must provide notice and opportunity for hearing before imposing penalties)

How It Works

Under 15 U.S.C. § 1821, a horse is "sore" if it has been subjected to any chemical, mechanical, or other practice causing pain, inflammation, or lameness in any limb when the purpose is to affect its natural gait. The definition covers chemical agents applied to the pasterns, pressure shoeing, foreign objects placed between hoof and shoe, and heavy action devices worn on chemically sensitized skin; a horse can also be "sore" based on the effects of prior soring — scars, abnormal sensitivity, or gait irregularities — even if no chemical agent is currently present. The Act's primary enforcement mechanism under 15 U.S.C. § 1823 requires show management to have qualified inspectors (Designated Qualified Persons, or DQPs) examine horses before they enter the show ring; these inspectors palpate the horse's pasterns and lower legs (a sored horse will flinch when its irritated skin is touched), use visual examination, thermography, and sometimes chemical testing of leg swabs. If a horse is found sore, it must be disqualified and the violation reported to USDA.

The Act's core structural weakness is its reliance on industry self-policing: it allows Horse Industry Organizations (HIOs) — industry groups certified by USDA — to train and provide DQP inspectors rather than requiring federal inspectors at every event. Note that the Horse Protection Act covers horses at shows and in commerce broadly, but does not regulate the transport of horses to slaughter — that is governed by a separate APHIS rule at 9 CFR Part 88. See APHIS Commercial Transportation of Equines for Slaughter for the welfare standards that apply once a horse enters the kill-buyer pipeline. USDA audits have repeatedly found that HIO-appointed inspectors were less likely to identify sored horses than USDA veterinary inspectors, and that some HIOs actively undermined enforcement. Criminal penalties under 15 U.S.C. § 1825 are relatively modest — up to $3,000 and 1 year for a first offense, $5,000 and 2 years for subsequent offenses; civil penalties cap at $2,000 per violation. The more significant deterrent is disqualification — violators can be banned from showing or entering horses for up to 5 years, and USDA can suspend or revoke HIO certifications. However, enforcement resources are limited and USDA inspectors attend only a fraction of the thousands of horse shows held annually. The PAST Act (Prevent All Soring Tactics Act), introduced in multiple Congresses, would eliminate industry self-policing, ban action devices and performance packages used to conceal soring, and strengthen penalties.

How It Affects You

If you're a horse owner or trainer who competes in Tennessee Walking Horse, Racking Horse, or other gaited breed shows: Soring a horse — or knowingly allowing a sored horse to be shown, sold, auctioned, or transported — is a federal crime under 15 U.S.C. § 1824. First offense: up to $3,000 fine and 1 year in prison. Second offense: up to $5,000 and 2 years. Civil fines stack at $2,000 per violation. Beyond the criminal exposure, USDA APHIS can disqualify you from showing or entering horses for up to 5 years for a subsequent offense — effectively ending your competitive career. Your horses will be inspected by Designated Qualified Persons (DQPs) or USDA veterinary inspectors at covered shows; a sored horse that flinches or shows abnormal sensitivity during pastern palpation will be flagged. If you're in the Tennessee Walking Horse circuit specifically, federal enforcement has historically been most concentrated there. The PAST Act, if enacted, would eliminate industry self-policing and ban the action devices and weighted shoes associated with "Big Lick" showing. Track USDA APHIS enforcement actions at aphis.usda.gov/animal-welfare/horse-protection.

If you're a horse show manager or promoter: Federal law makes you responsible for the integrity of the inspection program at your show. You must use USDA-approved DQP inspectors provided by a certified Horse Industry Organization or, absent an HIO, may face direct USDA APHIS veterinary inspection. Failure to have qualified inspectors present, failure to disqualify a sored horse after a finding, or failure to submit required reports to USDA can all result in civil penalties ($2,000/violation) and loss of the ability to host covered shows. USDA APHIS attends major shows unannounced and has the authority to inspect any event where horses that have moved in interstate commerce are shown or sold. USDA audits HIO record-keeping and has revoked HIO certifications where documentation violations were found — your inspection logs and disqualification reports are not optional.

If you're a horse buyer at auction or private sale: The Act makes it unlawful to sell, auction, or transport a sored horse — sellers who conceal soring are violating 15 U.S.C. § 1824 directly. If you suspect a horse being offered for sale shows signs of soring — abnormal sensitivity to pastern touch, visible scarring on the lower legs, gait irregularities consistent with pain — you can report it to USDA APHIS at 1-800-551-3937 or at aphis.usda.gov/animal-welfare/horse-protection. USDA accepts anonymous complaints. For Tennessee Walking Horses, request that pre-purchase veterinary exams include pastern palpation and thermography to detect chemical sensitization that might not be apparent on casual inspection.

If you're an animal welfare advocate or researcher tracking Horse Protection Act enforcement: The Act's core structural weakness is its reliance on industry self-policing through Horse Industry Organizations — a system that USDA's own audits have repeatedly found produces systematically lower soring detection rates than USDA-direct inspection. Congressional testimony and OIG reports have documented HIO inspectors failing to identify horses that USDA veterinarians found sore at the same event. The PAST Act (Prevent All Soring Tactics Act), introduced in multiple Congresses, would eliminate industry self-policing, ban action devices and performance packages used in "Big Lick" showing, and increase criminal penalties. The Humane Society of the United States (humanesociety.org) and Friends of Sound Horses (fosh.info) track PAST Act status and USDA enforcement data. USDA APHIS publishes annual Horse Protection Act enforcement reports with case counts and outcomes at aphis.usda.gov/animal-welfare/horse-protection/report.

State Variations

The Horse Protection Act explicitly does not preempt state laws:

• Several states have enacted their own anti-soring statutes with penalties that may exceed federal levels
• Tennessee, where Tennessee Walking Horse shows are concentrated, has been a focal point for state-level enforcement
• State veterinary practice acts may define the role of veterinarians in soring inspections
• State animal cruelty laws may provide additional criminal penalties for soring
• Some states require licensing for horse show inspectors beyond federal DQP certification

Implementing Regulations

• 9 CFR Part 11 — Horse Protection Regulations: the APHIS implementing regulation prescribing the specific inspection procedures, DQP authorization, and show management responsibilities under the Horse Protection Act:

  • § 11.2 — Soring device prohibitions: no chain, boot, roller, collar, action device, or substance may be used on a Tennessee Walking Horse or racking horse in a manner that causes soring or is designed to cause soring; "action devices" — the weighted chains and boots used in "Big Lick" showing — are presumptively prohibited unless APHIS has specifically approved them; the regulation implements the Act's ban on using devices that exploit horses' chemically-induced sensitivity to produce an exaggerated gait
  • § 11.19 — Authorization and training of Horse Protection Inspectors (HPIs): USDA APHIS authorizes HPIs after completion of APHIS training; show management must appoint and retain APHIS-authorized inspectors; the HPI program is APHIS's own inspector cadre distinct from industry DQPs — when USDA sends its own inspectors to a major show, they are HPIs who have completed APHIS veterinary training; the presence of HPIs vs. DQPs is a significant enforcement distinction: USDA audits have consistently shown HPIs detect higher soring rates than industry DQPs
  • § 11.20 — Show management responsibilities: management of any horse show, exhibition, or sale that doesn't appoint and retain a DQP is itself responsible for compliance with the HPA; show management is liable for any sored horse shown at its event if it failed to conduct proper inspections; failure to have inspectors present, failure to disqualify sored horses, or failure to maintain records subjects management to civil penalties of $2,000 per violation; this provision makes promoters, not just exhibitors, liable for systemic inspection failures
  • § 11.21 — DQP inspection procedures: during pre-show inspection, DQPs must direct the horse's custodian to walk and turn the horse to observe gait; DQPs must palpate the pastern, ankle, and lower leg of each horse for evidence of soring (a sored horse will react to finger pressure on its chemically sensitized skin); objective testing including thermography and swab testing for chemical sensitizers may be required; a horse that reacts abnormally to pastern palpation must be disqualified; DQPs must complete a written report for each inspected horse
  • § 11.22 — Records required: show management must retain all inspection records for at least 2 years and provide them to USDA APHIS on request; APHIS enforcement actions frequently arise from record discrepancies between DQP reports and USDA inspectors' findings at the same event

  The 2024 USDA APHIS final rule (89 FR 24006, May 8, 2024) — issued after decades of regulatory effort — significantly strengthened 9 CFR Part 11 by banning action devices (chains and boots) on Tennessee Walking Horses and Racking Horses entirely, prohibiting the use of any substance on the lower legs, and requiring APHIS-licensed Horse Protection Inspectors (rather than industry DQPs) at licensed shows; the rule effectively sought to implement major elements of the PAST Act through administrative rulemaking rather than legislation. The rule was challenged in federal court by the Tennessee Walking Horse industry, and in January 2025 the U.S. District Court for the Northern District of Texas vacated several key provisions including the action-device ban and the replacement scar rule. APHIS subsequently postponed the remaining provisions multiple times — most recently to December 31, 2026 — and a House Appropriations Committee report (Nov. 2025) directed APHIS to withdraw the 2024 rule. As of May 2026, only § 11.19 (HPI authorization) is on track for that effective date. Recent rulemakings: 89 FR 24006 (May 8, 2024) — final rule (largely vacated/postponed); 90 FR (Jan. 28, 2025) and 91 FR (Jan. 28, 2026) — postponements.

Pending Legislation

No standalone Horse Protection Act reform bills have been introduced in the 119th Congress. The PAST Act (Prevent All Soring Tactics) has been introduced repeatedly in prior Congresses but not yet in the 119th. Related animal welfare provisions appear in broader legislation — see Animal Welfare Act.

Recent Developments

The PAST Act has been introduced in multiple sessions of Congress with bipartisan support, aiming to end industry self-regulation, ban action devices (heavy chains and weighted boots used on sored horses), prohibit "performance packages" (stacked pads and wedges used to conceal soring), and transfer inspection authority entirely to USDA-licensed veterinary inspectors. USDA has strengthened its inspection protocols and increased the use of objective soring detection methods, including thermography and gas chromatography for chemical detection. The number of soring violations detected at inspected shows has declined, though advocates argue this reflects improved concealment techniques rather than reduced soring.