FEI registration is compulsory for international competitions. All horses and ponies engaged with the riders participating in the international events: Young Riders, Juniors, Riders Ponies, Kids and Veterans for all disciplines at all levels of competition; Must be registered on the FEI website.
You have to go to the FEI website and you have to click on FEI horses registration. A new page will appear and you will have to choose the name from the list of your horses. Or click on select another horse (to register a horse not present in the list). After you choose your discipline then you click on register in case of 1st registration or renew.