The program is open to all students, with or without scientific backgrounds, and with a special focus on under-prepared, lower income students. The program provides training and personal support to prepare students for certificates and degrees in the Biosciences. The Bridge program is a semester-long, 8-unit program. Students enroll in 3 concurrent classes in Biosciences, Language Applied to Biosciences and Math Applied to Biosciences, which meet 3 days a week for 4 hours a day. These classes are offered as day and evening courses at different campuses in San Francisco. Find out more about the course requirements. Students who wish to obtain hands-on experience through an internship in the second semester must enroll concurrently in the Bridge's Internship program. This requires for students to take an additional 4 units and 7 hours of classes during the Bridge semester. Students can also enroll in these courses after they have completed the Bridge program.