What is the function of the Obstacle Free Zone (OBZ)?

• A. Extends 200 feet beyond each runway and 150 feet high to represent clear airspace
• B. Represents the area used for obstacle placement
• C. Provides a buffer for noise abatement
• D. Serves as a permitted area for maintenance operations

Answer: (A)

The Obstacle Free Zone is the clear airspace around a runway that must be free of obstacles to provide a safe path for takeoff and landing. It extends 200 feet beyond each end of the runway and up to 150 feet above the surface, creating a buffer where aircraft can climb out or descend without hitting any objects. This is why it’s focused on representing unobstructed airspace, rather than being a place for obstacle placement, a noise abatement area, or a maintenance zone.