Whether you are registering your foal, mare, or stallion, you can find the applicable applications at the following links on our website: Mares: https://www.in.gov/hrc/2558.htm Foals: https://www.in.gov/hrc/2557.htm Stallions: https://www.in.gov/hrc/tb/applications-for-registration/stallion/ Please note that mares must be registered each year they foal in Indiana. Stallions must be registered each year they stand in Indiana. Foals may be registered for free up to their 1st birthday, but may be registered as soon as they are foaled.