Pilots Utilize 'VFR-on-Top' Clearance for Enhanced Flight Conditions
Pilots operating under Instrument Flight Rules (IFR) can request a 'VFR-on-top' clearance from Air Traffic Control (ATC) to fly at Visual Flight Rules (VFR) altitudes. This clearance allows pilots to select an altitude of their choice, subject to ATC restrictions, when flying in VFR weather conditions. The primary purpose is to enable pilots to remain above, below, or between cloud layers, or in areas free of meteorological obstructions, thereby avoiding prolonged periods of flying through solid Instrument Meteorological Conditions (IMC). According to the FAA's Instrument Flying Handbook (IFH), this option is available to pilots on IFR flight plans who are in VFR weather. While utilizing this clearance, pilots must still adhere to their cleared lateral route, maintain communication with ATC, and comply with all other IFR requirements, including minimum IFR altitudes and position reporting. This clearance essentially modifies the vertical aspect of their flight plan, not the lateral.