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What is required before entering Class B airspace?

Choices

  • Establish two-way radio communication only

    That is the Class C/D rule; Class B requires more.

  • ✓ An explicit ATC clearance to entercorrect

    Class B requires the controller to explicitly clear you into the Class Bravo.

  • Nothing; Class B is uncontrolled

    Class B is the most controlled airspace, not uncontrolled.

  • A flight plan filed with ATC

    A flight plan is not the entry requirement; a clearance is.

Why

Class B entry requires an explicit clearance ("cleared into the Class Bravo"), unlike Class C/D which only require establishing two-way communication.

FAA source: AIM 3-2-3 / 14 CFR 91.131browse the reference library →

This is taught in Busy Airports: Class B, C and D — study the lessons free, then practice with grading and mastery tracking.

Original study question written for this course — representative of FAA knowledge-test topics, not an actual current FAA exam question.

What is required before entering Class B airspace? · PPL Free Ground School