The FAA is the Federal Aviation Administration, a U.S. government agency under the Department of Transportation responsible for regulating and overseeing all aspects of civil aviation in the United States and surrounding international airspace.
EASA is an European Union agency that ensures a uniform level of aviation safety and environmental protection across member states. It sets the rules, certifies aircraft and aviation organizations, and oversees compliance.
ICAO stands for the International Civil Aviation Organization, a specialized agency of the United Nations that sets global standards and regulations for civil aviation.
IATA is the International Air Transport Association—a global trade organization that represents, supports, and advocates for the airline industry.
SITA or Société Internationale de Télécommunications Aéronautiques, is a global leader in air transport communications and IT solutions, uniquely owned by the air transport community itself.
AOPA is the Aircraft Owners and Pilots Association Founded in 1939, AOPA is a non-profit membership organization based in the United States that advocates for the rights, safety, and freedom of private pilots and aircraft owners.
EAA stands for the Experimental Aircraft Association, a vibrant and diverse community of aviation enthusiasts dedicated to recreational flying, aircraft building, and aviation heritage.
ALPA is the Air Line Pilots Association, International. The largest and most influential labor union representing airline pilots in the world. Founded in 1931, ALPA advocates for the safety, security, and professional interests of more than 77,000 pilots at 41 airlines across the U.S. and Canada.