All PhD students and part-time master's students with no course enrollments are enrolled for CTN 1 by the Office of the University Registrar for the fall and spring semesters. MALS students are required to register themselves for CTN 1 in the respective term. If you have a Bursar block on your account at the time the Registrar's office registers you for CTN 1, you will not be enrolled. You will be notified that registering for CTN 1 will become your responsibility once the block has cleared. If the block is not resolved by the late registration deadline, a late registration fee ($50) will be charged to your bursar bill. In the summer, any Graduate School student may register for CTN 1.