MOCA or MEA

[dewarg]

Mea - Moca

MOCA – Minimum Obstruction clearance Altitude. This altitude is based on taking the highest obstruction (natural or person made) in an airway segment and applying the required obstacle clearance. It could be considered an emergency minimum altitude.
MEA – Minimum Enroute Altitude. This altitude must ensure obstacle clearance (MOCA) and navigation aid reception when flying an air route in uncontrolled airspace. In controlled airspace add ATC communications and here in Canada the MEA must be at least 2200 feet above terrain.