The elective testing list, approved by all the FEI Reference Laboratories, contains more substances than previously offered at the Beijing 2008 Olympic Games in order to provide the best service possible to the treating veterinarians.
The updated list comprises more than 100 controlled medication substances. Previously, there were fewer than 70 substances listed.
Only controlled medications - commonly-used substances with valid therapeutic uses in equine medicine - will be available for testing on this list.
This is consistent with the FEI's approach to banned substances not having a regular legitimate use.
Elective testing is intended to help team veterinarians in treating horses before competition ahead of routine in-competition testing.
With this transparent approach, the FEI aims to provide greater confidence for treating veterinarians to reduce the risk of required medication use being above FEI levels at the time of competition.
Elective testing is for reference purposes only. All test results will remain confidential.
The nearest FEI laboratory for the World Equestrian Games is based at Ithaca, New York.
The other FEI reference laboratories are the Laboratoire des Courses Hippique in Paris, the Hong Kong Jockey Club, the New South Wales Racing Laboratory in Sydney, and the Horseracing Forensic Laboratory in Newmarket, England.