Grounds of refusal of recognition
Article 24
A decision shall not be recognised: (a) if such recognition is manifestly contrary to public policy in the Member State in which recognition is sought. The test of public policy may not be applied to the rules relating to jurisdiction; (b) where it was given in default of appearance, if the defendant was not served with the document which instituted the proceedings or with an equivalent document in sufficient time and in such a way as to enable him to arrange for his defence, unless the defendant failed to commence proceedings to challenge the decision when it was possible for him to do so; (c) if it is irreconcilable with a decision given in a dispute between the same parties in the Member State in which recognition is sought; (d) if it is irreconcilable with an earlier decision given in another Member State or in a third State in a dispute involving the same cause of action and between the same parties, provided that the earlier decision fulfils the conditions necessary for its recognition in the Member State in which recognition is sought. A decision which has the effect of modifying an earlier decision on maintenance on the basis of changed circumstances shall not be considered an irreconcilable decision within the meaning of points (c) or (d).