Which regulation allows the commercial operation of drones weighing less than 55 lbs?

The regulation that permits the commercial operation of drones weighing less than 55 lbs is FAR Part 107. This part specifically outlines the operational rules for small unmanned aircraft systems (sUAS) and includes guidelines for pilot certification, operational limitations, and required safety protocols.

FAR Part 107 was enacted to create a framework that allows for the safe integration of drones into the national airspace. It covers aspects such as the need for remote pilot certification, limitations on flight (like staying within visual line of sight), maximum altitude, and operations over people, ensuring that drone operations are conducted safely within established parameters.

The other regulations mentioned do not pertain to the commercial operation of drones weighing less than 55 lbs. FAR Part 101 primarily addresses model aircraft operations and does not cover commercial use; Part 110 relates to the operation of commercial air tour operators, and Part 121 governs the transportation of passengers and cargo by larger aircraft, which is not relevant to small drones. Thus, FAR Part 107 is the appropriate regulation for this context.