American Trakehner Association

ATA Thoroughbred and Arabian Mare Inspection Program


The American Trakehner Association pilot program was established to study the effect on the breed in North America of adding select Thoroughbred and Arabian mares to the Preliminary Stud Book. It was in effect from Dec. 1, 1996 through Dec. 31, 2005.

The pilot program has now ended, however Thoroughbred and Arabian mares can still be inspected for inclusion in the American Trakehner Association's Preliminary Stud Book. Please go to FAQ's from the ATA home page for more information.


The following conditions will apply:

  1. An applicant mare must be registered with the Jockey Club or the Arabian Horse Registry of America Inc., and a certified copy of her registration papers must accompany the application. For Thoroughbred mares, we also need a five-generation pedigree and a copy of their race record summary.
  2. The applicant mare must be inspected. Her offspring will be taken into account the assessment, but are not essential for consideration or acceptance.
  3. Accepted Thoroughbred or Arabian mares may be bred to non-restricted OSB registered Trakehner stallions. The resultant foals will be subject to the conditions of registration which apply to the Preliminary Stud Book at the time of application.
  4. Accepted mares must be DNA typed before PSB registration, not at the expense of the ATA
  5. Current regulations regarding fees for mare inspection, registration and breeding will apply.
  6. Arabian mares must submit Combined Immune Deficiency Syndrome (CIDS) test results indicating that they are clean. Carriers will not be accepted for inspection. A licensed veterinarian, not the mare owner, must take the sample for the CIDS test.
  7. The recommended minimum size requirements for mares are 15.1 hands in height with a heart girth of 70 inches and a cannon bone which approaches 7.5 inches.

Inspection Procedure:
For the best possible impression, mares should be well groomed with a neat and tidy appearance. They may be shows in a halter or bridle, but bridles are recommended. The handler should wear neat comfortable clothing and running shoes.

Mares will be required to complete the following phases:
Phase 1: Veterinary inspection (only if deemed necessary by the Inspection Committee)
Phase 2: Walk and Trot on a hard surface
Phase 3: Walk and Trot on a triangle.
Phase 4: Walk, trot, canter at liberty. (please be sure you can catch your mare quickly when asked to do so)
Phase 5: Walk in hand for a final evaulation.

Final scores will be announced at the inspection site and will also be published in the American Trakehner Times.

See inspection application for fees.