Part 121 Operators

Part 121 operators are commercial airlines and air carriers that follow specific regulations set by the Federal Aviation Administration (FAA) in the United States. These operators are responsible for operating large passenger aircraft on scheduled routes, such as domestic and international flights. They must adhere to strict safety, maintenance, and operational standards to ensure passenger safety and reliability. Examples include major airlines like American Airlines, Delta, and United. Essentially, Part 121 covers the rules and requirements these airlines must meet to legally and safely transport passengers and cargo by air.