Name: Namenserklärung für Kinder - bei Feststellung der Nichtvaterschaft Unfortunately this specification of service has not yet been completely translated.

If it is legally established that a man whose surname has become the birth name of the child is not the father of the child, the child shall, at his request or, if the child has not yet reached the age of 5 years, at the request of the man, be given the name that the mother bore at the time of birth as the birth name.

Certificate of descent or birth of the childProof of establishment of non-paternity , (Order of the court) Identity card or passport of the person making the declaration

final determination of non-paternity

The birth registry office of the child is responsible.
The relevant declarations must be made in person at the registry office.