1. With regard to general air traffic, relevant operational data shall be made available in an interoperable format in real-time, on a transparent and non-discriminatory basis and without prejudice to national security, public order and defence policy interests, by all air navigation service providers, airspace users, airports and the Network Manager, including on a cross-border and a Union-wide basis. Such availability shall be to the benefit of certified or declared air navigation service providers, entities having a proven interest in considering the provision of air navigation services, military entities in charge of security and defence activities, military air navigation service providers, airspace users and airports as well as the Network Manager. The data shall be used only for operational purposes.