FAA Part 121

FAA Part 121 outlines the regulations for scheduled air carriers, which includes airlines that operate passenger or cargo flights with large aircraft. These rules cover various safety and operational standards, including pilot training, aircraft maintenance, and scheduling. The goal is to ensure safety and reliability in commercial aviation. Airlines must comply with these regulations to operate, and they undergo regular inspections and oversight by the Federal Aviation Administration (FAA) to maintain the highest safety standards for passengers and cargo.