Where a significant new factor, material mistake or material inaccuracy arises or is noted within the timeframe specified in Article 23(1) and relates to the information contained in the registration document or the universal registration document, the supplement required pursuant to Article 23 shall be submitted for approval to the competent authority which approved the registration document or the universal registration document. That supplement shall be notified to the competent authority of the home Member State for the prospectus approval within one working day following its approval, under the procedure set out in paragraphs 2 and 3 of this Article.
Where a registration document or a universal registration document is simultaneously used as a constituent part of several prospectuses, as provided for in Article 23(5), the supplement shall be notified to each competent authority which has approved such prospectuses.