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General provisions

ANNEX I — Part-DEFINITIONS · Air Traffic Management / Air Navigation Services · Regulation (EU) 2017/373

  1. GM1 2. Aerial work

    and Regulation (EU) No 923/2012 define ‘aerial work’ in a way that is similar but not identical to the way Regulation (EU) No 965/2012 (the ‘Air…

  2. GM1 9. Aeronautical data

    DAT PROVIDERS Aeronautical data in the context of DAT providers should mean that aeronautical data needed for the functionality of certified aircraft…

  3. GM1 20. Air traffic safety electronics personnel (ATSEP)

    AUTHORISED PERSONNEL (a) The achievement of competence is independent of the permission to perform any task.

  4. GM2 20. Air traffic safety electronics personnel (ATSEP)

    SCOPE The design, testing, installation and commissioning of operational systems and equipment are excluded from the scope of this section.

  5. GM1 32. Authoritative source

    ORGANISATIONS Organisations formally recognised by the State authority to originate and/or publish data, which meets the Data Quality Requirements (DQRs)…

  6. GM1 42. Data quality requirements (DQRs)

    GENERAL Depending on the data characteristics considered, DQRs are specified as ‘internationally recognised Data Quality Requirements’ (mainly when data…

  7. GM1 56. Functional system

    SOFTWARE The term ‘software’ is understood to be the computer programmes and corresponding configuration data, including non-developmental software, but…

  8. GM1 74. Obstacle

    MOBILE OBJECTS Mobile objects may be converted to fixed items in obstacle database taking into account its mobility boundaries.

  9. GM1 101. Terrain

    GENERAL In practical terms, depending on the method of data collection used, terrain represents the continuous surface that exists at the bare Earth, the…

  10. GM1 130. Air traffic control clearance or ATC clearance

    GENERAL Throughout the text, the term ‘air traffic control clearance’ is frequently abbreviated to ‘clearance’ when used in appropriate contexts.

  11. GM1 138. Assemble

    AERONAUTICAL DATA The assemble phase includes checking the data and ensuring that detected errors and omissions are rectified.

  12. GM1 139. ATS route

    TYPES OF ATS ROUTES (a) The term ‘ATS route’ is used to mean variously ‘airway’, ‘advisory route’, ‘controlled route’, ‘uncontrolled route’ (i.e.

  13. GM1 141. ATS surveillance system

    GENERAL A comparable ground-based system is one that has been demonstrated, by comparative assessment or other methodology, to have a level of safety and…

  14. GM1 143. Automatic dependent surveillance — contract (ADS-C)

    GENERAL The abbreviated term ‘ADS contract’ is commonly used to refer to ‘ADS event contract’, ‘ADS demand contract’, ‘ADS periodic contract’ or an…

  15. GM1 152. Confidence level

    AERONAUTICAL DATA The interval is usually referred to as the accuracy of the estimate.

  16. GM1 155. Controlled aerodrome

    GENERAL The airspace associated with a controlled aerodrome is designed in compliance with the requirements in Annex XI (Part-FPD).

  17. GM1 156. Controlled airspace

    AIRSPACE CLASSIFICATION Details of the airspace classifications could be found in Section 6 ‘Airspace classification’ and SERA.6001 ‘Classification of…

  18. GM1 170. Data product specification

    AERONAUTICAL DATA A data product specification provides a description of the universe of discourse and a specification for mapping the universe of…

  19. GM1 196. Integrity classification

    AERONAUTICAL DATA Aeronautical data is classified as: routine data:

  20. GM1 203. Instrument approach operations

    NAVIGATION GUIDANCE Lateral and vertical navigation guidance refers to the guidance provided either by:

  21. GM1 208. Metadata

    GENERAL A structured description of the content, quality, condition or other characteristics of data.

  22. GM1 232. Significant point

    GENERAL There are three categories of significant points: ground-based navigation aid, intersection and waypoint.

  23. GM1 (262) ‘SPACE WEATHER CENTRE (SWXC)’

    GENERAL A space weather centre (SWXC) is designated as global and/or regional.

Consolidated from the EASA Easy Access Rules (revision 12 Mar 2025, extracted 17 Aug 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.

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