Uncontrolled airspace is defined as what?

• A. Class G airspace that has not been designated as Class A, B, C, D, or E; ATC has no authority to control air traffic; however, pilots should remember there are VFR minimums which apply
• B. Class G airspace where ATC controls all IFR traffic
• C. Class F airspace with special rules
• D. Class E airspace within controlled airports

Answer: (A)

Uncontrolled airspace means ATC does not have authority to control or separate traffic there. In the United States this corresponds to Class G airspace outside areas designated as Class A through E. Because there’s no ATC separation, pilots flying VFR must rely on their own see-and-avoid skills and follow VFR minimum weather requirements. These minima ensure pilots can see other aircraft and avoid weather and clouds, even though ATC isn’t providing traffic separation. This is different from controlled airspace, where ATC assigns routes and altitudes and provides traffic separation.