CMSM is the national organization for the leaders of Catholic men's religious institutes, monasteries and societies of apostolic life in the U.S. National organization serving the leaders of Catholic men’s religious institutes, monastic communities, and societies of apostolic life in the United States. The Conference of Major Superiors of Men (CMSM), through the leadership of the religious institutes, monastic communities, and societies of apostolic life, addresses the life and concerns of the members of the institutes and societies in the United States, and the evangelizing mission of the institutes, monasteries and societies in the context of church and culture in this country. CMSM is both the common voice for major superiors and the primary common resource for service to leaders.