Under which FAR do regulations for unmanned aerial systems (UAS) fall?

The regulations for unmanned aerial systems (UAS) specifically fall under Part 107 of the Federal Aviation Regulations. This part was established by the FAA to address the operation of small unmanned aircraft systems in the national airspace, allowing for commercial and recreational use of drones while ensuring safety and compliance with aviation standards.

Part 107 outlines the rules for operators, including requirements for remote pilot certification, operational limitations, airspace classifications, and requirements for preflight inspections and maintenance. This regulation provides a clear framework that promotes safe integration of UAS into the existing aviation system, balancing the benefits of drone technology with necessary safety measures.

In contrast, the other parts mentioned govern different aspects of aviation. Part 91 pertains to general operating and flight rules applicable to all aircraft, Part 121 covers the operation of air carriers and commercial operators involving larger aircraft, and Part 43 deals with maintenance, preventive maintenance, and alterations of aircraft. None of these parts specifically cater to the unique operational and regulatory needs of unmanned aerial systems as Part 107 does.