Do I have to take USMLE, Class 2021.

Hey all, DO student here graduating 2021. I of course need to take the COMLEX to graduate, but is the USMLE mandatory? I am planning to take it regardless of whether it would really make a difference, since I don't want to be lazy and I figured studying for the USMLE would help me for the COMLEX and school exams. I am really just planning to match either into PMR, Neuro, or IM. Nothing else really seems to interest me. Just wondering just for my own record, would take the USMLE be a must?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums