What does MOCA stand for in aviation regulations?

MOCA stands for Minimum Obstacle Clearance Altitude. This term is defined in aviation regulations and refers to the lowest altitude at which an aircraft can safely fly while ensuring a clearance above all obstacles in the area, including terrain and man-made structures. MOCA is particularly critical for ensuring safety during flight, especially in regions with varied topography, as it provides pilots with the necessary vertical separation from obstacles to maintain safe navigation.

The minimum obstacle clearance altitude is vital in the context of instrument flight rules (IFR), as it defines the minimum height that must be maintained above obstacles, ensuring that aircraft can operate safely and reliably even in challenging conditions. Understanding of MOCA helps pilots to maintain situational awareness and adhere to safety protocols during their flights.