The Holy See, in its Apostolic Constitution Spirituali militum curae, dated 21 April 1986, identified the following as subjects of the Military Ordinariate of Canada and its chaplains:

• all military persons, including Catholic military of Eastern Rite, and the civilian personnel bound by the laws of the National Defence Act;
• the members of their families, spouses, children, relatives, servants, if they live with them at the same domicile;
• those who attend military schools, or who live or work in military hospitals, veterans’ homes or similar institutions;
• all faithful, whether or not they are members of a religious institute, who perform in a permanent way, a task committed to them by the Military Ordinary.
• In addition to the personal jurisdiction possessed by the Military Ordinary, his jurisdiction within the territory of all military establishments is primary.