I'm sitting here trying to remember my order bill...it's literally been 10+ years since I last looked at one.
I believe General Quarters is considered "Condition I." Now, in practice, we just call it "General Quarters." (I've never heard it called Condition I.)
I can't remember, off hand, what Conditions II and III are, but Condition IV is the normal underway watch section. Of course, we don't call it Condition IV, either. 
I'll have to look that up, or ask someone who was on a ship a lot more recently than I.
Davy Jones
"Frightened? My dear, you are looking at a man who has laughed in the face of death, sneered at doom, and chuckled at catastrophe! I was petrified."
-- The Wizard of Oz