Functional Airspace Blocks (FABs), are intended to combat fragmentation of the airspace by establishing co-operation between ANSPs, optimising the organisation and use of airspace through design of optimal control sectors and routes over larger areas and hence achieving overall synergies through economies of scale.

4. Where charging zones extend across the airspace of more than one Member State, which may be a consequence of the creation of a common charging zone in a functional airspace block, the Member States concerned shall ensure consistency and uniformity in the application of this Regulation to the airspace concerned to the maximum possible extent.

‘airspace restriction’ means a defined volume of airspace within which, variously, activities dangerous to the flight of aircraft may be conducted at specified times (a ‘danger area’); or such airspace situated above the land areas or territorial waters of a State, within which the flight of aircraft is restricted in accordance with certain specified conditions (a ‘restricted area’); or airspace situated above the land areas or territorial waters of a State, within which the flight of aircraft is prohibited (a ‘prohibited area’);

‘airspace restriction’ means a defined volume of airspace within which, variously, activities dangerous to the flight of aircraft may be conducted at specified times (a ‘danger area’); or such airspace situated above the land areas or territorial waters of a State, within which the flight of aircraft is restricted in accordance with certain specified conditions (a ‘restricted area’); or airspace situated above the land areas or territorial waters of a State, within which the flight of aircraft is prohibited (a ‘prohibited area’).

The creation of a single flight information region in upper airspace will enable this space to be reconfigured into delimited control areas without regard to national frontiers, thereby ensuring the more efficient use of airspace, systems and personnel.

The creation of a single flight information region in upper airspace will enable this space to be reconfigured into delimited control areas without regard to national frontiers, thereby ensuring the more efficient use of airspace, systems and personnel.