Theta Phi Alpha was the *last* of the NPC members to officially discriminate. (On non-Catholic campuses they only took Catholic Women). This was removed in 1968.
I'm not familiar with any NPC sororities that discriminated by Major.
FYP.
Also, does that mean if a non-Catholic was attending a Catholic college, they could join?
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It is all 33girl's fault. ~DrPhil