The National Airspace System (NAS) was created by the FAA to make the U.S. airspace safer for all aviation and to protect persons and property on the ground. It is a complex network of both controlled and uncontrolled airspace, including air navigation, airports, and the density of aircraft movement within.

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The NAS has two categories of airspace: regulatory and non-regulatory.

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Under regulatory and non-regulatory categories there are four types of airspace:

• Controlled airspace

  • Class A, B, C, D and E​

• Uncontrolled airspace

  • Class G​

• Special Use

• Airspace Speed Limits

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Click on the Airspace links below to study each lesson:

 

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References:

 

Private Pilot ACS PA.I.E.K1 - PA.I.E.K3 

AIM Sec. 3-2-2, 3-2-3, 3-2-4, 3-2-5, 3-2-6, 3-3-1

FAR Part 91.225

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