As soon as a colt is gelded permanent registration must be applied for.

The passport should be returned to the Stud Book Manager along with the ‘Gelding Registration’ form that must be completed by the veterinary that performed the gelding procedure, and any fees due.

The Stud Book Manager will issue a permanent gelding number and this will be recorded on page 14 of the passport. The gelding registration form would have been included in the back pocket of the passport when the colt was originally registered, alternatively you can download one here:

Gelding Registration