Art. 73 PILA from 2022

Art. 73 III. Acknowledgment made or challenged abroad
1 The acknowledgment made abroad is recognised in Switzerland, if it is valid in the state of the child’s habitual residence, in the child’s state of citizenship, or in the state of domicile or the state of citizenship of the mother or the father.
2 Foreign decisions on the challenge of an acknowledgment are recognised in Switzerland if they were rendered in one of the states mentioned in paragraph 1.
Es besteht kein Anspruch auf Aktualität und Vollständigkeit/Richtigkeit.