In education, a core curriculum is a curriculum, or course of study, which is deemed central and usually made mandatory for all students of a school or school system. Core curricula are often instituted, at the primary and secondary levels, by school boards, Departments of Education, or other administrative agencies charged with overseeing education. At the undergraduate level, individual college and university administrations and faculties sometimes mandate core curricula, especially in the liberal arts. But because of increasing specialization and depth in the student's major field of study, a typical core curriculum in higher education mandates a far smaller proportion of a student's course work than a high school or elementary school core curriculum prescribes.