Marginal VFR restrictions are defined by which ranges?

• A. 1000 - 3000 ft ceiling or 3 - 5 SM vis
• B. < 1000 ft ceiling or < 3 SM vis
• C. > 3000 ft ceiling and 5 SM vis
• D. 500 - 1000 ft ceiling or 1 - 2 SM vis

Answer: (A)

Marginal VFR sits between VFR and IFR, defined by ceilings in the 1000 to 3000 feet range and/or visibility in the 3 to 5 statute miles range. In practice, the overall flight category uses the worse value between ceiling and visibility, but the MVFR boundary itself is that 1000–3000 ft ceiling or 3–5 SM visibility. So, when either metric falls into those ranges, you’re in MVFR. If ceilings drop below 1000 ft or visibility falls below 3 SM, IFR results; if both remain above 3000 ft and 5 SM, you’re VFR.