1. In the event that the Commission does not endorse a draft regulatory technical standard or amends it as provided for in Article 10, the Commission shall inform the Authority, the European Parliament and the Council, stating its reasons.
2. Where appropriate, the European Parliament or the Council may invite the responsible Commissioner, together with the Chairperson of the Authority, within 1 month of the notice referred to in paragraph 1, for an ad hoc meeting of the competent committee of the European Parliament or the Council to present and explain their differences.