Third and fourth-year students will be required to be on-duty (shift) no more frequently than every third night. For third year students, the shift will be from 4:00 p.m. until 10:00 PM during weekdays. During weekends and holidays, shifts will be from 8:00 a.m. to 10:00 PM. During the fourth year, shifts will be from 4:00 p.m. until 8:00 a.m. during weekdays, and on a twenty-four-hour basis during weekends and holidays (8:00 a.m. to 8:00 a.m.). Fourth-year students will have the same limitation on duty-hours that applies to interns and residents, according to the Accreditation Council for Graduate Medical Education.