§1. It is for the diocesan bishop in the territories of a mission: 1/ to promote, direct, and coordinate endeavors and works which pertain to missionary action; 2/ to take care that appropriate agreements are entered into with moderators of institutes which dedicate themselves to missionary work and that relations with them result in the good of the mission.
§2. All missionaries, even religious and their assistants living in his jurisdiction, are subject to the prescripts issued by the diocesan bishop mentioned in §1, n. 1.
Source: Code of Canon Law (Vatican.va)