The specified altitude in effect between radio fixes on very high frequency omnirange airways, off-airway routes, or route segments, which meets obstruction clearance requirements for the entire route segment, and that assures acceptable navigational signal coverage only within 22 miles of a very high frequency omnirange.
MINIMUM OBSTRUCTION CLEARANCE ALTITUDE
Meaning of MINIMUM OBSTRUCTION CLEARANCE ALTITUDE in English
DOD English dictionary of military terms. Английский словарь военных терминов DOD. 2012