What types of airspace does Regulatory Airspace include?

Regulatory Airspace encompasses the structured classes of airspace defined by the Federal Aviation Administration (FAA), which include Class A, B, C, D, and E airspace areas. Each of these classes establishes specific rules and requirements for air traffic operations, including separation minimums, communication protocols, and requirements for aircraft operations.

Class A airspace is primarily for high-altitude jet traffic and requires instrument flight rules (IFR) to operate, while Class B airspace surrounds the busiest airports and requires both ATC clearance and communication. Class C airspace, which surrounds busy airports with a control tower, has specific entry requirements and air traffic service provisions. Class D airspace covers smaller airports with an active control tower, requiring two-way communication with ATC. Lastly, Class E airspace is a transition zone that can support various operations, often serving as a buffer for IFR operations transitioning to Class G airspace.

This structured organization plays a crucial role in ensuring safety and efficiency within the National Airspace System, thereby facilitating orderly air traffic management across diverse flight operations.