Wouldn't this be interesting?

[SmartBlondeGPhB]

Recommendations aren't a school thing, they are requirements of individual GLO's. I don't know the requirements of Phi Sigma Sigma but if there was a Gamma Phi Beta chapter at your school they would "technically" need to have recs for every girls going through recruitment. Now the difference would be how closely the GLO's rules are being followed by the chapter's on individual campuses and how much the headquarter's cares.

And since you have more than one NPC represented on your campus, recruitment would follow NPC rules for those groups.