Article 31 4.

Where a competent authority concludes that activities contrary to the provisions of this Regulation are being carried out or have been carried out on the territory of another Member State, it shall notify the competent authority of the other Member State of that conclusion in as specific a manner as possible. The competent authority of the other Member State shall take appropriate action. It shall inform the notifying competent authority of the outcome of that action and, to the extent possible, of significant interim developments.