Last day to add undergraduate classes in my.mtholyoke without instructor approval. Students should aim to have their schedules complete by this date. After this date for another week, undergraduate students may still add classes to their schedule only if they have the instructor's  authorization (either to move into the class from its waitlist or, if no waitlist, then to add the course directly). Second-half-semester courses (such as PE) may still be added at this time without special authorization.