Definitions
Article 2
1. For the purpose of this Regulation the definitions established by Regulation (EC) No 549/2004 shall apply. 2. In addition to the definitions referred to in paragraph 1, the following definitions shall apply: (a) ‘airspace management cell (AMC)’ means a cell responsible for the day-to-day management of the airspace under the responsibility of one or more Member States; (b) ‘airspace reservation’ means a defined volume of airspace temporarily reserved for exclusive or specific use by categories of users; (c) ‘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’); (d) ‘airspace structure’ means a specific volume of airspace designed to ensure the safe and optimal operation of aircraft; (e) ‘air traffic services unit’ (ATS unit) means a unit, civil or military, responsible for providing air traffic services; (f) ‘civil-military coordination’ means the coordination between civil and military parties authorised to make decisions and agree a course of action; (g) ‘controlling military unit’ means any fixed or mobile military unit handling military air traffic and/or pursuing other activities which, owing to their specific nature, may require an airspace reservation or restriction; (h) ‘cross-border airspace’ means an airspace structure extending across national borders and/or the boundaries of flight information regions; (i) ‘flight intention’ means the flight path and associated flight data describing the planned trajectory of a flight to its destination, as updated at any moment; (j) ‘flight path’ means the path of an aircraft through the air, defined in three dimensions; (k) ‘real-time’ means the actual time during which a process or event occurs; (l) ‘separation’ means spacing between aircraft, levels or tracks; (m) ‘users’ means civil or military aircraft operating in the air as well as any other parties requiring airspace.