The suspension will last until mid-February, at the least, according to this news report:
http://www.kolotv.com/home/headlines...179727631.html
ETA: A copy of Pi Phi's official statement is in the following article; the statement describes what the UNR chapter is -- and is not -- allowed to do while in this suspension mode. There's also a bit of a timeline on events leading up to the suspension action:
http://www.ktvn.com/story/20120008/u...-hotline-calls