What minimums must be considered when selecting an altitude with a VFR-on-Top clearance?

What minimums must be considered when selecting an altitude with a VFR-on-Top clearance?

• A. At least 1,000 feet above the lowest MEA, appropriate MOCA, or existing meteorological condition
• B. Not specified
• C. Minimum IFR altitude, minimum distance from clouds, and visibility appropriate to altitude selected
• D. 500 feet above MEA and 1,000 feet above weather

Answer: (C)

When using VFR-on-Top, you still must meet three safety criteria for the altitude you choose. First, you must respect the minimum IFR altitude for the route or segment, which ensures obstacle clearance even if you end up operating in marginal weather. Second, you must maintain the minimum distance from clouds appropriate for the airspace and altitude, so you stay in visual meteorological conditions (VMC). Third, the visibility you have at that altitude must meet the minimums required for that altitude to remain in VMC. This combination—minimum IFR altitude for obstacle clearance, proper cloud clearance, and sufficient visibility—is what governs a safe, legal VFR-on-Top choice. The other options don’t capture all three elements together.

When using VFR-on-Top, you still must meet three safety criteria for the altitude you choose. First, you must respect the minimum IFR altitude for the route or segment, which ensures obstacle clearance even if you end up operating in marginal weather. Second, you must maintain the minimum distance from clouds appropriate for the airspace and altitude, so you stay in visual meteorological conditions (VMC). Third, the visibility you have at that altitude must meet the minimums required for that altitude to remain in VMC.

This combination—minimum IFR altitude for obstacle clearance, proper cloud clearance, and sufficient visibility—is what governs a safe, legal VFR-on-Top choice. The other options don’t capture all three elements together.