Before revision: Unlike the Minimum safe altitude used for IFR flight, the MEF does not include any margin for aircraft clearance above the terrain nor for altimeter error.Aeronautical Information Circular 26/11 VFR Navigation Charts—Clarification of the Maximum Elevation Figure In the US, the Federal Aviation Administration issues sectional charts.
After revision: United StatesUnlike the Minimum safe altitude used for IFR flight, the MEF does not include any margin for aircraft clearance above the terrain nor for altimeter error.Aeronautical Information Circular 26/11 VFR Navigation Charts—Clarification of the Maximum Elevation Figure In the US, the Federal Aviation Administration issues sectional charts.