Atlas/ Glossary/ IFR over-the-top, with respect to the operation of aircraft,
General
IFR over-the-top, with respect to the operation of aircraft,.
IFR over-the-top, with respect to the operation of aircraft,
the operation of an aircraft over-the-top on an IFR flight plan when cleared by air traffic control to maintain “VFR conditions” or “VFR conditions on top”.
Source
14 CFR § 1.1 →