Under which FAR section can you find regulations on airspace classification?

The regulations on airspace classification can be found in Part 71 of the Federal Aviation Regulations. This part provides the framework for the various classifications of airspace, such as Class A, B, C, D, E, and G, and outlines the requirements and procedures associated with each type. Part 71 is crucial for pilots to understand as it ensures safe operation within different airspace environments and delineates the rules applicable to flight operations in each classified area.

Part 61 addresses certification of pilots and flight instructors, Part 91 covers general operating and flight rules, and Part 107 pertains to the operation of small unmanned aircraft systems (sUAS). While all these parts are important for aviation safety and operations, they do not specifically address airspace classification. This distinction emphasizes the importance of Part 71 for understanding the structural layout of the air traffic system.