International Civil Aviation Organization responsibilities

Aircraft Airworthiness Authority is a term used to describe the organization responsible for determining the safety suitability and effectiveness of parts that go into aviation (aircraft) systems. This organization determines if the aircraft, and/or it parts, are suitable for safe flight (i.e., are they airworthy). System safety is usually involved in evaluating airworthiness for systems and equipment from a safety perspective and in ensuring that the Aircraft Airworthiness Authority s safety standards are satisfied. The Airworthiness Authority for commercial aircraft in the United States is the FAA. The Civil Aviation Authority (CAA) is the Airworthiness Authority for commercial aircraft in Europe. TTie Air Force, Army, and Navy have their own internal airworthiness authorities. 

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