Definitions

wast on top heap

VFR-on-Top

In United States aviation VFR-on-top is defined as ATC authorization for an aircraft operating an IFR flight to operate in VFR conditions at any appropriate VFR altitude. A pilot receiving this authorization must comply with the VFR visibility, distance from cloud criteria, and the minimum IFR altitudes. The use of this term does not relieve controllers of their responsibility to separate aircraft in Class B and Class C airspace or TRSAs.

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