(60)In order to facilitate cross-border merger operations, it should be provided that monitoring of the completion and legality of the decision-making process in each merging company should be carried out by the national authority having jurisdiction over each of those companies, whereas monitoring of the completion and legality of the cross-border merger should be carried out by the national authority having jurisdiction over the company resulting from the cross-border merger. The national authority in question could be a court, a notary or any other competent authority appointed by the Member State concerned. The national law determining the date on which the cross-border merger takes effect, this being the law to which the company resulting from the cross-border merger is subject, should also be specified.