---
title: "Automatic dependent surveillance — contract (ADS-C) — EASA Definition · Avioverse"
description: "Article 2, Regulation (EU) No 923/2012: ‘automatic dependent surveillance — contract (ADS-C)’ means a means by which the terms of an ADS-C agreement will…"
url: "https://avioverse.aero/glossary/easa/automatic-dependent-surveillance--contract"
---

# automatic dependent surveillance — contract (ADS-C)

EASA defines “automatic dependent surveillance — contract (ADS-C)” in one regulation. The wording below is reproduced verbatim from the EASA Easy Access Rules, with a link to the paragraph it comes from.

> ‘automatic dependent surveillance — contract (ADS-C)’ means a means by which the terms of an ADS-C agreement will be exchanged between the ground system and the aircraft, via a data link, specifying under what conditions ADS-C reports would be initiated, and what data would be contained in the reports;
>
> 48a. ‘automatic dependent surveillance — contract (ADS-C) agreement’ means a reporting plan which establishes the conditions of ADS-C data reporting (i.e. data required by the air traffic services unit and frequency of ADS-C reports which have to be agreed to, prior to using ADS-C in the provision of air traffic services);

Article 2 · Standardised European Rules of the Air (SERA) · Regulation (EU) No 923/2012 · Easy Access Rules, 26 Aug 2025 revision · [Read Article 2](https://avioverse.aero/regulations/easa/sera/cover-regulation/powers-and-recital#article-2)

## Defined in the same article

- [accuracy](https://avioverse.aero/glossary/easa/accuracy)
- [advisory airspace](https://avioverse.aero/glossary/easa/advisory-airspace)
- [advisory route](https://avioverse.aero/glossary/easa/advisory-route)
- [aerial work](https://avioverse.aero/glossary/easa/aerial-work)
- [aerobatic flight](https://avioverse.aero/glossary/easa/aerobatic-flight)
- [aerodrome](https://avioverse.aero/glossary/easa/aerodrome)
- [aerodrome control service](https://avioverse.aero/glossary/easa/aerodrome-control-service)
- [aerodrome control tower](https://avioverse.aero/glossary/easa/aerodrome-control-tower)