Any equines seized or adopted out to new owners by the SPCA, any where in the world, are eligible for a discount.
Any registered Rescue Organization or Society will also receive discounted rates, and those who adopt form the same, who provide documentation that their equines were rescued are also eligible for a discount.
Documentation must accompany the registration application for discounts to be issued.
International Horse Registry also offers discounts for equines, again, any where in the world who are tested through a recognized testing facility for PSSM and 5 panel.
If, you would like a discount, documentation must be submitted at the time of application.
UCDAVIS Testing: https://www.vgl.ucdavis.edu/services/horse.php
Animal Genetics: http://animalgenetics.us/Equine/Cost_Dollar.asp