Article 11 4.

When the competent authority declares an emergency it shall follow the pre-defined action as set out in its emergency plan and shall immediately inform the Commission and the competent authorities in the risk group as well as the competent authorities of the Member States with which the Member State of that competent authority is directly connected in particular of the action it intends to take. In duly justified exceptional circumstances, the competent authority may take action deviating from the emergency plan. The competent authority shall immediately inform the Commission and the competent authorities in its risk group as set out in Annex I, as well as the competent authorities of the Member States with which the Member State of that competent authority is directly connected, of any such action and shall provide a justification for the deviation.