Streets surrounding Old Campus are closed to traffic at 9:45 a.m. for the Commencement procession, which leaves from Cross Campus promptly at 10:00 a.m. (Cross Campus is the area in front of Sterling Memorial Library, bordered by Wall, College, Elm and High Streets. The Commencement procession is composed of all graduating students and faculty.) Seniors process through the New Haven Green and enter Old Campus through Phelps Gate on College Street. Graduate and professional school degree candidates enter Old Campus through gates on Elm Street and High Street. The ceremony on Old Campus begins at 10:30 a.m. and lasts until about noon. Diploma ceremonies follow immediately in the residential colleges and the graduate and professional schools and last until approximately 1:30 p.m.