The University System of Georgia has just put out its new, improved anti-harrassment/anti-discrimination policy. It prohibits us from being mean to each other based on "race, sex (including sexual harassment), ethnic or national origin, religion, age, disabled status, or status as a disabled veteran or veteran of the Vietnam era."
I understand that those in charge of figuring out the wording did get asked about "orientation." Since it's not mentioned despite that, I can only conclude that the omission is deliberate. Especially since the previous version (marked "effective July 2006" at the bottom) did include sexual orientation.