49 U.S.C. § 41702 — Interstate air transportation

This section states one basic duty. An air carrier must provide interstate air transportation that is both "safe" and "adequate." "Safe" means the airline must not put passengers or cargo at risk during the flight. "Adequate" means the service must be good enough to actually meet people's transportation needs — for example, having enough capacity and reliability to get people and goods where they need to go. The rule applies to any air carrier flying between states, not to carriers that only fly within one state. This section does not spell out exact safety or adequacy standards. Those details come from other parts of the law and from regulations. This section simply sets the underlying legal requirement that every interstate air carrier must meet.