Legal basis

The foundation for the working relationships within FABEC is built on three legal pillars: a treaty, a cooperation agreement among the national supervisory agencies and a cooperation agreement among the civil air navigation service providers. These documents provide the framework for the working relationships among all partners. 
They are supplemented by specific agreements, such as on cross-border issues, safety teams and the common training of air traffic controllers.

In the European context, the functional airspace blocks are a central component of the Single European Sky initiative. The goal of this European regulation is to boost the attractiveness of the European air transport for passengers and to strengthen Europe as a location for business and trade for the long term. Air navigation services play a key role, especially as regards the connectivity of airports and the safe and expeditious handling of air traffic.
In keeping with European and international demands, the six FABEC States registered the operational set-up of FABEC with the European Commission and lodged the treaty signed by the six member States with the International Civil Aviation Organisation (ICAO).

The concrete structure of the functional airspace block was strongly influenced by additional European legislation, including the Performance Regulation as well as other regulations from the European Commission and the European Aviation Safety Agency.