The English Language Proficiency for Aeronautical Communication (ELPAC) is a EUROCONTROL test for aeronautical communication designed to assess ICAO English Language Proficiency for pilots and air traffic controllers, and reflects the range of tasks undertaken in air traffic control and pilot communications. The test focuses on language proficiency, not operational procedures.

ICAO Requirements for Language Proficiency

With the implementation of the ICAO language proficiency requirements in 2011, the international aeronautical community took a significant step towards improving safety in aviation. Now all air traffic controllers and pilots operating in internationally designated airspace and on international air routes have to demonstrate their proficiency in the language(s) they have for aeronautical communication.