The ATA Aviation Marketplace is owned and operated by the Air Transport Association of America, Inc. d/b/a Airlines for America and is provided as a subscription-based service to the world's airlines and suppliers. The Marketplace is a centralized database based on the requirements identified in Spec 2000 - Procurement Planning (Chapter 2) and Spec 2000 - Airline Inventory Redistribution System - AIRS (Chapter 12). These specifications are maintained by the ATA e-Business Program.