Most students enter a major during the spring semester of their sophomore year (their pool semester) by following the Entrance-to-Major (ETM) process on eLion. The especially applies to students entering controlled majors.
If, however, students choose to enter a major without enrollment controls, they may do so as soon as they meet that major's minimum entrance requirements.
All students should check ETM Requirements and Procedures to review what must be done to qualify for their majors of interest and learn what steps to take when ready to move into them.
Additional details about Entrance to and Changes in College/Major can be found in the Advising Handbook at http://dus.psu.edu/handbook/com.html.
Students planning to relocate to University Park should pay close attention to the Credit Requirement for Change of Campus.