Legionary duty requires from each legionary:
1.    The punctual and regular attendance at the weekly meetings of the praesidium, and the furnishing there of an adequate and audible report on the work done
2.    The daily recitation of the Catena
3.    The performance of a substantial active legionary work, in the spirit of faith, and in union with Mary, in such fashion that in those worked for and in one’s fellow-members, the Person of our Lord is once again seen and served by Mary, his Mother
4.    Absolute respect for the confidential nature of many matters discussed at the meeting or learned in connection with the legionary work
 

The following is a Chinese Version from the Handbook for reference

經常訓辭
凡我聖母軍團員應當：
(一) 經常出席支團的週會，並在會中切實地、響亮地報告自己的工作。
(二) 每日念連貫經。
(三) 以信德的精神與聖母聯合在一起， 完成聖母軍的實際工作；工作的時候，應在所接觸到的人身上，以及同伴們身上，重新看到耶穌自己，並且由祂的母親聖母服侍著。
(四) 對於開會時所討論的事，或因聖母軍的工作而聽到的事，要絕對遵守秘密。