MAA is scientologese for Master At Arms and is another name for the ethics officer.

Flag is the ‘Flag Land Base,’ the head quarters in Clearwater, Florida.

Therefore the MAA Flag is one of the highest positions in the overall ethics department. It is the task of the ethics departments to enforce policy and keep people adhering to the church doctrine. When one reads up on ethics in the church literature a different picture would be perceived. One would get the impression that the task of the ethics department would be to help strengthen the persons individual ethics and integrity, but as double speak goes this is not how it is in reality. Personal ethics and integrity is good as long as it is in line with doctrine.