What is acknowledgement and what rights do I have as father with I acknowledge my child?

Immediately after the birth of a child, but also later, with the consent of the mother and possibly the child, a father can go to the Civil Affairs Office to acknowledge the child, which gives the child his surname. The acknowledgement creates a family law relationship between the acknowledger and the child. If you acknowledge a child, you become the child's legal parent. You then have a number of rights and obligations. But after acknowledgement, the father has no authority over the child. The mother therefore remains entrusted with full parental authority even after the acknowledgement.  She does not need permission from the father to arrange important matters for the child, such as doctor visits, getting a passport or travelling abroad with the child.