As far as I know, the PNMs will be allowed into the back stairwells and out of the way areas during the time between chapters.

I hope so, it's brutal out there right now.
Best of luck to everyone involved--PMNs and their nervous moms, sorority women, advisors, Rho Gams, etc.
I can tell you from personal experience that every chapter at IU has something valuable to offer a PNM!