AUTOMATIC DEPENDENT SURVEILLANCE-CONTRACT (ADS-C)
A data link position reporting system, controlled by a ground station, that establishes contracts with an aircraft’s avionics that occur automatically whenever specific events occur, or specific time intervals are reached.
Listed in the Pilot/Controller Glossary as a cross-reference to AUTOMATIC DEPENDENT SURVEILLANCE-CONTRACT (ADS-C), whose text is shown above.
Source FAA Pilot/Controller Glossary · checked 2026-08-25