The International Air Transport Association (IATA) is a global trade organization representing approximately 330 airlines, which accounts for over 80% of total air traffic in 2026. IATA is not a government body but a private organization that sets the industry standards for safety, security, efficiency, and sustainability. Within IATA, you will find the frameworks for Standard Traffic Documents, such as the electronic tickets and waybills that allow you to travel seamlessly across different airlines. They are responsible for the IATA Codes used worldwide, including the three-letter airport codes (e.g., LAX, LHR) and two-letter airline designators (e.g., AA for American Airlines). Furthermore, IATA manages the Billing and Settlement Plan (BSP), a massive financial clearinghouse that facilitates the flow of billions of dollars between travel agents and airlines. They also lead the industry’s "Fly Net Zero" initiative, providing the technical roadmaps for airlines to achieve carbon neutrality through sustainable aviation fuels and carbon offsets.