Organizations can differ in their religious character. Some programs are entirely secular (or, non-faith-based) and some are faith-based, including being affiliated with religions, denominations, or religious institutes. Many organizations that would be called post-graduate service programs are in fact the lay missioner/volunteer arm of a particular religious institute or society of apostolic life.[13] This includes some programs already named, as well as the Augustinian Volunteers, Good Shepherd Volunteers, Dominican Volunteers, Maryknoll Lay Missioners, Cabrini Mission Corps (Cabrini Sisters), and Little Sisters of the Assumption Family in Mission (Little Sisters of the Assumption).