Article 16
Review of charges 1. The Commission shall provide for the ongoing review of compliance with the principles and rules referred to in Articles 14 and 15, acting in cooperation with the Member States. The Commission shall endeavour to establish the necessary mechanisms for making use of Eurocontrol expertise. 2. At the request of one or more Member States which consider that the abovementioned principles and rules have not been properly applied, or on its own initiative, the Commission shall carry out an investigation on any allegation of non-compliance or non-application of the principles and/or rules concerned. Within two months of receipt of a request, after having heard the Member State concerned and after consulting the Single Sky Committee in accordance with the procedure referred to in Article 5(2) of the framework Regulation, the Commission shall take a decision on the application of Articles 14 and 15 and as to whether the practice concerned may continue. 3. The Commission shall address its decision to the Member States and inform the service provider thereof, in so far as it is legally concerned. Any Member State may refer the Commission's decision to the Council within one month. The Council, acting by a qualified majority, may take a different decision within a period of one month. CHAPTER IV FINAL PROVISIONS