Maximum Authorized Altitude (MAA) is depicted on charts in which format?

Maximum Authorized Altitude (MAA) is depicted on charts in which format?

• A. MAA-00000
• B. MEA-00000
• C. MOCA-00000
• D. MCA-00000

Answer: (A)

Maximum Authorized Altitude is shown on IFR enroute charts in the format MAA-XXXXX, where MAA indicates Maximum Authorized Altitude and the five digits give the altitude in feet. This label tells you the highest altitude at which that airway segment is authorized, based on terrain, obstacles, and airspace constraints. It’s distinct from other altitude indicators like MEA (minimum enroute altitude) and MOCA (minimum obstacle clearance altitude), which serve different purposes, so the specific MAA-XXXXX format is the correct depiction for the maximum allowable altitude on that segment.

Maximum Authorized Altitude is shown on IFR enroute charts in the format MAA-XXXXX, where MAA indicates Maximum Authorized Altitude and the five digits give the altitude in feet. This label tells you the highest altitude at which that airway segment is authorized, based on terrain, obstacles, and airspace constraints. It’s distinct from other altitude indicators like MEA (minimum enroute altitude) and MOCA (minimum obstacle clearance altitude), which serve different purposes, so the specific MAA-XXXXX format is the correct depiction for the maximum allowable altitude on that segment.