The Master of Rabbinic Studies (MRb) is a graduate degree granted by a Yeshiva or rabbinical school. It involves the academic study of Talmud, Jewish law, philosophy, ethics, and rabbinic literature. In many institutions, this degree is a standard component in the study for semicha (rabbinic ordination). At accredited institutions this degree requires between 72 and 90 credit hours of study (72 being the minimum determined by academic accrediting agencies and 90 being on the upper end of certain schools that wish to ensure a broader study of the related material).