Under which part are operators of business aircraft generally certificated for compensation or hire?

Operators of business aircraft are generally certificated under Part 135 when they are operating for compensation or hire. This part of the Federal Aviation Regulations (FAR) specifically governs the operation of commuter and on-demand operations, which includes a variety of business aviation activities such as charter flights.

Part 135 establishes higher safety standards and operational requirements than other parts, ensuring that operators provide a secure and reliable service to their customers. This includes more stringent maintenance requirements, operational control, and pilot training protocols.

Part 91, for example, covers general aviation operations but is not designed for commercial operations where compensation is involved, meaning it lacks the specific regulations that apply to aircraft used for hire. Similarly, Part 121 pertains to scheduled air carriers operating larger aircraft and focuses on airlines rather than business aviation. Part 141 governs pilot schools and training organizations, which is unrelated to the certification of aircraft operators for hire. Thus, Part 135 is the appropriate regulatory framework for operators involved in commercial or compensated flight operations.