Interdisciplinary programs that may be set up by faculty members of two or more departments, subject to approval of the colleges' executive committee(s).Group major programs require no fewer than 30 and no more than 36 units in upper division courses. Field major programs require at least 12 units from a list of specified upper division courses; elective courses are included to bring the total up to 30 units of upper division courses. Both group and field majors also have lower division requirements.The College of Letters and Science has established two field major programs: Interdisciplinary Studies Field Major and Physical Sciences Field Major. The Interdisciplinary Studies Field Major (ISF) offers students the opportunity to develop individualized cross-disciplinary majors utilizing courses from across campus.