1. Without prejudice to Article 23, where an offer to the public or admission to trading on a regulated market is provided for in one or more Member States, or in a Member State other than the home Member State, the prospectus approved by the home Member State and any supplements thereto shall be valid for the public offer or the admission to trading in any number of host Member States, provided that ESMA and the competent authority of each host Member State are notified in accordance with Article 18. Competent authorities of host Member States shall not undertake any approval or administrative procedures relating to prospectuses.
2. If significant new factors, material mistakes or inaccuracies come to light after approval of the prospectus, as referred to in Article 16, the competent authority of the home Member State shall require the publication of a supplement to be approved in accordance with Article 13(1). ESMA and the competent authority of the host Member State may inform