What is the maximum altitude at which MAAs are shown in MSL altitudes?

The maximum altitude at which Minimum Altitude Areas (MAAs) are depicted in Mean Sea Level (MSL) altitudes is 45,000 feet. This is established in aviation guidelines to ensure safety by highlighting the maximum altitude where vertical separation is maintained from terrain and obstacles below. MAAs guarantee that aircraft flying under Visual Flight Rules (VFR) receive appropriate altitude information for safe navigation and separation from air traffic. Therefore, understanding that MAAs are specifically marked up to this altitude and not beyond is essential for both air traffic controllers and pilots in maintaining safe flying conditions.