Why are recs absolutely necessary at some schools, while not expected at others?

[MysticCat]

Originally Posted by AnchorAlumna

I have been told that this is necessary to maintain single sex status, according to federal requirements and/or guidelines.

If so, then anyone insisting that their sorority or chapter doesn't "do" recs or doesn't have to consider them may be a) not following the requirements of their group b)jeopardizing the group's single sex status.

Maybe I have this wrong?

But if that were the case, then most if not all GLOs outside the NPC may be jeopardizing their single-sex status. Obviously, I don't fully know the policies of any groups but my own, but I've never heard of anything like NPC-style recs outside of NPC sororities. The idea that not using recs like that could jeopardize single-sex status sounds like post hoc rationalization.