What regulation governs the use of commercial pilots in carrying passengers or cargo for compensation?

The regulation that governs the use of commercial pilots in carrying passengers or cargo for compensation is 14 CFR Part 135. This part specifically outlines the requirements for the operation of commuter and on-demand operations, including the certification and operation of pilots and aircraft for commercial purposes.

Part 135 applies to a majority of operations where commercial pilots are engaged in carrying passengers or cargo for hire, differentiating it from other parts such as Part 121, which deals with scheduled air carriers, and Part 119, which provides the general rules for the certification of operators. The existence of these different parts helps to tailor regulations to the specific nature of various aviation operations, ensuring safety and efficiency across the industry.

Part 143, on the other hand, pertains to the operation of parachute operations and does not relate to traditional passenger or cargo transport. Therefore, the regulatory framework set out in Part 135 is critical for ensuring that commercial pilots are operating under the appropriate guidelines for safety and compliance when carrying out their duties.