For student option classes taken pass/fail (P/F), final grades of C- or above as input by faculty will be systematically converted to a P+, whereas grades of D+, D and D- will convert to the standard P grade.
For Spring 2020, the provost recently announced that CU Boulder will lift restrictions on pass/fail credits for all majors and degrees (other than law) and allow those students to declare a pass/fail option for most classes.