Article 6 2.

Member States shall ensure that, wherever possible, changes to the system or the level of airport charges are made in agreement between the airport managing body and the airport users. To that end, the airport managing body shall submit any proposal to modify the system or the level of airport charges to the airport users, together with the reasons for the proposed changes, no later than four months before they enter into force, unless there are exceptional circumstances which need to be justified to airport users. The airport managing body shall hold consultations on the proposed changes with the airport users and take their views into account before a decision is taken. The airport managing body shall normally publish its decision or recommendation no later than two months before its entry into force. The airport managing body shall justify its decision with regard to the views of the airport users in the event that no agreement on the proposed changes is reached between the airport managing body and the airport users.