The air traffic services that are currently addressed in this document are:
- 5 NM horizontal separation combined with 1000/2000 ft vertical separation when providing approach control service or area control service,
- 3 NM horizontal separation combined with 1000 ft vertical separation when providing approach control service or area control service,
- 2.5 NM horizontal separation between succeeding aircraft established on the same final approach track.
The specification has been developed by an international group of experts from air navigation service providers, system manufacturers and national supervisory authorities. It can be used by air navigation service providers to define, the minimum performance requirements that their surveillance system must meet.
Volume 1 specifies the requirements that have to be met, including the related assessments methods, to claim conformity to this EUROCONTROL specification whereas volume 2 contains informative appendices.