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Class B Airspace
Controlled airspace surrounding the nation's busiest airports (e.g., LAX, JFK, ORD). Operations within Class B require an ATC clearance, a functioning transponder with Mode C, and at least a Private Pilot certificate (student pilots need specific endorsements).
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- Class C AirspaceControlled airspace around airports with an operational control tower, radar approach control, and a certain volume of IFR operations. Under 14 CFR 91.130, pilots must establish two-way radio communication before entry, and Class C requires a Mode C transponder and ADS-B Out (91.215 and 91.225).
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