Article 13d 3.

The Commission may issue an opinion regarding the robustness of the corrective action plans submitted in accordance with paragraph 1 and shall in that case do so within four months of receipt of those plans. The Member State concerned shall take utmost account of the Commission’s opinion and may revise its corrective action plan accordingly. If the Member State concerned does not address the opinion or a substantial part thereof, that Member State shall provide a justification to the Commission.