Commission Implementing Regulation (EU)
2020/469
An AIS provider shall ensure that obstacle data, if available, is provided:
(a) for obstacles in Area 1 whose height is 100 m or higher above ground;
(b) for aerodromes, for all obstacles within Area 2 that are assessed as being a hazard to air navigation; and
(c) for aerodromes, to cover:
(1) Area 2a or parts thereof, for those obstacles that penetrate the relevant obstacle data collection surface;
(2) objects in the take-off flight path area or parts thereof, which project above a plane surface having a 1,2 % slope and having a common origin with the take-off flight path area;
(3) penetrations of the aerodrome obstacle limitation surfaces or parts thereof;
(4) Areas 2b, 2c and 2d, for obstacles that penetrate the relevant obstacle data collection surfaces;
(5) Area 3 or parts thereof, for obstacles that penetrate the relevant obstacle data collection surface; and
(6) Area 4 or parts thereof, for all runways where precision approach Category II or III operations have been established.