Navigable airspace

Airspace at and above the minimum flight altitudes prescribed by or under this chapter, including airspace needed for safe takeoff and landing.

Source: FAA Pilot/Controller Glossary (definition from the 2023 edition; current: Change 1 of 7 August 2025); 14 CFR 1.1, General definitions.

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Glossary last updated 2026-10-28.