Which of the following is NOT a requirement for operating in Class B airspace?

Operating in Class B airspace requires specific adherence to federal aviation regulations to ensure safety and orderly traffic management. One of the foundational requirements is obtaining a clearance from air traffic control (ATC) before entering this type of airspace. This clearance is crucial for managing the increased density of aircraft that typically operates in and around airports located within Class B airspace.

Effective communication with ATC is also necessary, as it allows pilots to receive important traffic advisories, instructions, and clearance updates, which are essential in maintaining safety standards.

The specific altitude requirement of flying below 10,000 feet is not applicable. Class B airspace begins at the surface and extends up to 10,000 feet. However, pilots can fly at altitudes above 10,000 feet while still adhering to their flight plan and operating regulations, making this a misleading condition.

Having a valid IFR (Instrument Flight Rules) flight plan is not a requirement for all operations within Class B airspace either, as pilots can operate under VFR (Visual Flight Rules) if they meet the appropriate communication and clearance requirements.