This lesson explores the different types of IFR altitudes charted on an Enroute Low Altitude Chart. The types of altitudes most commonly found on the low altitude chart are the Minimum Enroute Altitude (MEA), Minimum Obstacle Clearance Altitude (MOCA), Minimum Crossing Altitude, Minimum Reception Altitude, Maximum Authorized Altitude, and Off Route Obstruction Clearance … [Read more...] about Charted IFR Altitudes