The fraternity filed a lawsuit in response to its interim suspension.
After being suspended Friday, Phi Sigma Kappa cannot host events or fundraisers.
Sigma Alpha Mu and Phi Sigma Kappa were put on interim suspension Friday.
The Interfraternity Council’s Spring Rush is attracting a record high of 800 students.
Phi Sigma Kappa began at USC more than 80 years ago but was forced to leave IFC in 2003.