F-1 students are generally permitted to work on the premises of the school that issued their currently valid I-20, while attending that school and maintaining their F-1 status. This work is part-time, limited to 20 hours per week when school is in session or full-time during holiday and vacation periods.
Work on-campus is a benefit of F-1 visa status and no additional authorization is necessary. Work on Gettysburg's campus refers to any on-campus work for which you receive a paycheck (or other compensation, such as room and board).
Off-campus employment is generally not permitted for first-year students. See more information.