UT Austin Letters of Rec

[texas8]

I am planning on rushing in the fall at the University of Texas at Austin. I am in the process of getting together my resume, pictures and a transcript to give to the ladies who will be writing my references. Does anyone know which sororities allow actives at other universities to write recs? I know that a lot of the sororities now allow actives to write recs if they do not go to the same school that the girl they are writing the rec for will be attending. Does anyone know which sororities do not allow this? Also, I live in Austin, does anyone know when the latest the Austin Panhellenic accepts references is?

Thanks you all!