In international radiocommunications, what organization standard governs the required language?

• A. FAA
• B. IATA
• C. EASA
• D. ICAO

Answer: (D)

The essential idea is that international aviation standards for radiocommunications are set by a global aviation authority, not by a national agency or an industry group. For international operations, English is the mandated language to ensure clear, universal communication between pilots and air traffic control. This standard is established by ICAO, which publishes the rules and phraseology in its Annexes and related documents to create a common framework used worldwide. National bodies like the FAA or EASA govern within their jurisdictions, and IATA provides industry guidance, but they do not set the global radiocommunication language requirement. So the organization responsible for the language standard is ICAO.