49% of Pomona students study abroad. Pomona offers 62 pre-approved programs in 34 countries. Students can study abroad in any major, and can petition to study abroad in an outside program. The college has a semester study-away program in Washington D.C. and the Silicon Valley offered through consortium member Claremont McKenna College, as well as a semester program in environmental science sponsored by the Marine Biological Laboratory. In addition, students can do a semester-exchange at Colby College, Spelman College, and Swarthmore College.