Which section of the FARs addresses flight time limitations for pilots?

FAR Part 117 specifically addresses flight time limitations and rest requirements for flight crew members involved in scheduled air carrier operations. This section is crucial because it sets forth the maximum allowable flight time and the mandatory rest periods that pilots must adhere to in order to ensure safety and mitigate fatigue.

Part 117 was established to enhance safety by regulating the working hours of pilots, which helps reduce the risks associated with pilot fatigue—a significant factor in aviation accidents. It defines flight time limits based on the nature of the flight operation, whether it includes long-haul or short-haul flights, and establishes mandatory rest periods that pilots must receive before engaging in flight duties again.

By contrast, other sections of the FAR serve different purposes: Part 91 generally outlines the rules for general aviation operations; Part 121 covers the operational and certification standards for scheduled air carriers; and Part 135 provides regulations for commuter and on-demand operations. While these sections may contain regulations related to flight operations, they do not specifically focus on the flight time limitations and rest requirements that are detailed in Part 117.