Are there any classes that are not eligible for the opt-in S/U grade?

Most classes are eligible for the Spring 2020 S/U opt-in policy. There are only a few exemptions that have been approved. Without a special exemption from the university, your faculty advisor or graduate program director cannot prevent you from opting in for S/U grading. Instead, their role is to advise you on what they think are the potential consequences of your choice. You are encouraged to seek their advice, but the ultimate decision is yours.