Artikel 22

1. The measures taken by the authorities of a Contracting State shall be recognised by operation of law in all other Contracting States.
2. Recognition may however be refused -
a) if the measure was taken by an authority whose jurisdiction was not based on, or was not in accordance with, one of the grounds provided for by the provisions of Chapter II;
b) if the measure was taken, except in a case of urgency, in the context of a judicial or administrative proceeding, without the adult having been provided the opportunity to be heard, in violation of fundamental principles of procedure of the requested State;
c) if such recognition is manifestly contrary to public policy of the requested State, or conflicts with a provision of the law of that State which is mandatory whatever law would otherwise be applicable;
d) if the measure is incompatible with a later measure taken in a non- Contracting State which would have had jurisdiction under Articles 5 to 9, where this later measure fulfils the requirements for recognition in the requested State;
e) if the procedure provided in Article 33 has not been complied with.