A foal is registered in the foal book when:

  • the dam is recorded in the foal book, studbook, Register A, or is registered with a recognized foreign studbook, and
  • the sire:
    • is approved or recognized by the KWPN, or
    • is approved by a recognized studbook and meets the additional requirements, or
    • is ranked in the top 10 of the WBFSH Sire Ranking.

The foal book is therefore the standard registration for foals whose parents both meet the requirements. From the foal book, a horse can later be entered into the studbook.