Article 6a 11.

In the event of a substantial and sustained deviation by a Member State from the filling trajectory, compromising the meeting of the filling target, or in the event of a deviation from the filling target which is not allowed pursuant to paragraphs 5a to 5e, the Commission shall, where appropriate, after consulting the GCG and the Member States concerned, issue a recommendation to that Member State or to the other Member States concerned, regarding measures to be taken to remedy that deviation or to minimise the impact on security of supply, while taking into consideration, inter alia, possible difficult conditions or unfavourable market conditions as well as specificities of Member States, such as the technical characteristics and sizes of underground gas storage facilities in relation to domestic gas consumption, the declining importance of the underground low calorific gas storage facilities for the security of gas supply, and existing LNG storage capacity.