My sorority was (and still is) unhoused, but the rules in the housed sororities were (IIRC):
- No alcohol, even if you are 21
- No overnight male guests; not sure what time they had to leave by
- Men had to be escorted using the horizontal/vertical rule: The sister that the man was a guest of, had to be somewhere on the same floor of the house as the man, but not necessarily in the same room. (So a sister could, say, go down the hall to the bathroom without her guest having to tag along.)
- I think that if a man was in a room, the door had to be open... not sure about that.
During my junior and senior years, one sorority had a wing in a graduate dorm as a preliminary to getting a house. Since they were officially in a dorm rather than a house, they didn't have to abide by any no-alcohol or no-men rules... and they didn't
