Which statement correctly defines Class G airspace?

Which statement correctly defines Class G airspace?

• A. The minimum visibility for VFR flight is 3 miles.
• B. ATC controls only IFR flights.
• C. ATC does not control air traffic.
• D. ATC provides IFR separation in all weather conditions.

Answer: (C)

Class G airspace is uncontrolled; there are no ATC services or standard traffic separation provided to pilots operating there. That defining characteristic is why this statement is the best answer: in Class G, ATC does not control air traffic. The other statements describe conditions that apply to controlled airspace or misstate the level of ATC service. For example, minimum VFR visibility is not fixed at 3 miles in Class G, and ATC services are not limited to IFR flights in the sense implied here, while IFR separation is not guaranteed in all weather conditions in uncontrolled airspace.

Class G airspace is uncontrolled; there are no ATC services or standard traffic separation provided to pilots operating there. That defining characteristic is why this statement is the best answer: in Class G, ATC does not control air traffic. The other statements describe conditions that apply to controlled airspace or misstate the level of ATC service. For example, minimum VFR visibility is not fixed at 3 miles in Class G, and ATC services are not limited to IFR flights in the sense implied here, while IFR separation is not guaranteed in all weather conditions in uncontrolled airspace.