What is the vertical limit for CBM MOA?

What is the vertical limit for CBM MOA?

• A. 8000 MSL - 17999 MSL (NOT including FL180)
• B. Surface - 7000 MSL
• C. 5000 - 10000 MSL
• D. 0 - 9999 MSL

Answer: (A)

Vertical limits define where the MOA exists in the vertical dimension. For the CBM MOA, the airspace is active from 8000 feet MSL up to 17,999 feet MSL, not including FL180. The top stops short of FL180 because Class A airspace begins at 18,000 feet, and MOAs do not extend into Class A. This setup keeps the MOA within the high-altitude portion of airspace while avoiding overlap with the Class A layer.

Vertical limits define where the MOA exists in the vertical dimension. For the CBM MOA, the airspace is active from 8000 feet MSL up to 17,999 feet MSL, not including FL180. The top stops short of FL180 because Class A airspace begins at 18,000 feet, and MOAs do not extend into Class A. This setup keeps the MOA within the high-altitude portion of airspace while avoiding overlap with the Class A layer.