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Model Rules

The ARCI Model Rules of racing and wagering are recognized worldwide as a standard for the independent and impartial regulation of horse and greyhound racing as well as the conduct of pari-mutuel wagering.
In some racing jurisdictions, the Model Rules have the force of law as they have been adopted by reference statutorily or through a regulatory rule making.   In others they form the basis upon which rules are written ensuring substantial uniformity in the regulation of the sport.

Model Rules Archive

Please note: Current version of ARCI Model Rules is 12.1.3

Model Rules Version 12.1.1 — July 2023 Update

The following changes were made to the Model Rules:

  1. Typo correction in ARCI-007-025 Operations, Subsection A which listed a 45 hour restriction on substances.  It was corrected to 48 hours.
  2. Correction of several spelling errors.

Model Rules Version 12.1 — June 2023 Update

The following changes were made to the Model Rules:

  1. 007-025 OPERATIONS; Subsection A. Security – changed Restricted Administration Time from 24 hours to 48 hours with list of exceptions.
  2. 007-025 OPERATIONS; Added Subsection J – Biosecurity Protocols (Flat Racing) Protocols provided in Appendix A
  3. 011-015 PROHIBITED PRACTICES – changed Restricted Administration Time from 24 hours to 48 hours.
  4. 011-023 TESTING; Added Subsection G – Results Management Reporting – Reporting requirements for ADMC results on annual basis
  5. 021-025 OPERATIONS; Added Subsection G – Biosecurity Protocols (Harness Racing) Protocols provided in Appendix A
  6. 024-035 RACING RULES; Added Subsection O – No Contest Rule – provides guidance for Judges for consideration of declare a heat or race a no contest
  7. Added Appendix A – Biosecurity Protocols from AAEP which are referenced in 007-025 J and 021-025 G.

Model Rules Version 12.0 — April 2023 Update

The following changes were made to the Model Rules:

  1. Section ARCI-004-050 was added detailing the rules for Historical Horse Racing
  2. Section ARCI-004-105 Part II detailing rules for instant racing was removed.

Model Rules Version 11.1 — July 2022 Update

The following language was added to ARCI-023-020 Claiming Races:

(11) A claim shall be voided if a horse is a starter and the horse: 

(1) Dies on the racetrack; or 

(2) Suffers an injury which requires the euthanasia of the horse, as 
determined by a State veterinarian, while the horse is on the racetrack.

(12) A claim is voidable at the sole discretion of the new owner, for a period of up to 1 hour after the race is made official, for any horse that: 

(1) Is vanned off the track after the race at the discretion of the State or racetrack Veterinarian; or
 
(2) Is sent to the detention barn and observed to be lame by the State Veterinarian. 

Model Rules Version 11.0 — December 2021

Footnote added to thyroxine noting the requirement of a hypothyroid diagnosis.

Model Rules Version 10.1 — November 2021

Minor clerical correction from Version 10.0, Scale of weights was referenced but not included at ARCI-010-020 Weights, (D) Scale of Weights

Model Rules Version 10.0 — May 2021

Model Rules Version 9.5 — December 2020

Model Rules Version 9.3 — October 2020

Model Rules Version 9.2 — December 2019

Model Rules Version 9.1 — August 2019

Model Rules Version 9.0 — April 2019

Model Rules Version 8.5 — December 2018 

Model Rules Version 8.4.1 — September 2018

Model Rules Version 8.4 — July 2018

Model Rules Version 8.3 — April 2018

Controlled Therapeutic Medication Schedule Archive

Please note: Current version of CTMS is 4.2.1

Controlled Therapeutic Medication Schedule for Horses Version 4.2

Controlled Therapeutic Medication Schedule for Horses Version 4.1

Endogenous, Dietary, or Environmental Substances Archive

Please note: Current version of EDES is 4.1

ARCI Endogenous, Dietary, or Environmental Substances Schedule
Version 4.0 — December 2018 Update