What kind of airspace is Class G?

Class G airspace (uncontrolled) is that portion of airspace that has not been designated as Class A, Class B, Class C, Class D, or Class E airspace. Rules governing VFR flight have been adopted to assist the pilot in meeting the responsibility to see and avoid other aircraft.



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Unlike the other five classes of airspace, Class G airspace is uncontrolled. It simply exists anywhere that is not designated as Class A, B, C, D, or E.

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Class G airspace within the United States extends up to 14,500' Mean Sea Level (MSL) At and above this altitude is Class E, excluding the airspace less than 1500' above the terrain and certain special use airspace areas.

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Class G airspace will always start at the ground and go up to 14,500' msl as a maximum.

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Class G Requirements:
  • Uncontrolled, you do not need to contact ATC to enter or land in Class G airspace.
  • There are no specific equipment requirements.
  • Basic VFR minimums apply, which are 1sm visibility and Clear of Clouds (don't fly your airplane into a cloud or let it touch a cloud)


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CBO operations and events occurring at 400 feet AGL and below in Class G airspace do not require FAA review, approval or authorization. CBO's intending to conduct events in Class G airspace that may exceed 400 feet AGL must contact the FAA for further information.

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Permission is not required. Think of G as in “Ground” (It's the airspace that covers most of the ground in the U.S.) Class G airspace is uncontrolled airspace that has not been designated as Class A, B, C, D, or E. The only requirements are to have 1 mile of visibility and to stay clear of clouds.

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Classes A through E are all types of controlled airspace. This is where air traffic control has various levels of jurisdiction. Class G is considered “uncontrolled.” In Class G airspace, pilots are solely responsible for their own navigation and separation from traffic, terrain, and obstructions.

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For the purposes of airplane certification, airplanes are certified in one of three categories: normal, utility, aerobatic. Each category has stress limits of: +3.8Gs and -1.52Gs for normal category airplanes; +4.4Gs and -1.76Gs for the utility category airplane; +6Gs and-3Gs for the aerobatic category airplane.

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There are two categories of airspace or airspace areas: Regulatory (Class A, B, C, D, and E airspace areas, restricted and prohibited areas). Nonregulatory (military operations areas [MOA], warning areas, alert areas, controlled firing areas [CFA], and national security areas [NSA]).

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Indicate the type of flight as follows: • G - General Aviation. • S - Scheduled Air Service. • N - Non-Scheduled Air Transport Operation. • M - Military.

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Restricted areas denote the existence of unusual, often invisible, hazards to aircraft such as artillery firing, aerial gunnery, or guided missiles.

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In the 1900s, Hungarian physicist Theodore von Kármán determined the boundary to be around 50 miles up, or roughly 80 kilometers above sea level. Today, though, the Kármán line is set at what NOAA calls “an imaginary boundary” that's 62 miles up, or roughly a hundred kilometers above sea level.

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You should advise ATC before any altitude change when operating VFR-on-top. This ensures ATC can provide accurate traffic information and separation. VFR-on-top is not permitted in Class A airspace.

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The FAA requires that all aircraft obtain ATC approval prior to entering Class D airspace. Approval is given by the ATC facility that provides ATC services for the designated airspace. This is usually the local tower at a controlled airport.

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Class E Airspace, indicated by the faded magenta line. Most of the airspace in The United States is Class E airspace. Class E airspace extends from 1,200 feet AGL to 17,999 feet MSL (18,000 feet is the floor of Class A airspace). Class E airspace can also extends down to the surface or 700 feet AGL.

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Remote ID also helps the FAA, law enforcement, and other federal agencies locate the control station when a drone appears to be flying in an unsafe manner or where it is not allowed to fly.

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