MOCA - CFI Commonplace Book - Obsidian Publish

**_Meaning_** :: Minimum Obstacle Clearance Altitude > [!quote] [[IPH Ch2]] > > "The MOCA is the lowest published altitude in effect between radio fixes on VOR airways, off-airway routes, or route segments that meets obstacle clearance requirements for the entire route segment. This altitude also assures acceptable navigational signal coverage only within 22 NM of a VOR." > > "If both a MEA and a MOCA are prescribed for a particular route or route segment, pilots may operate an aircraft below the MEA down to, but not below, the MOCA, only when within 22 NM of the VOR." On en-route charts, the MOCA is shown with an asterisk, as in "*8000".