Don't take this the wrong way, but the fact that you don't know anything about this process probably tells me that you're not ready to go into full-time management. How did you become a part-time sup? Because the process is very similar...atleast initially anyway. The information you are seeking can be found here by doing a search, and detailed information can also be found on the UPSers website.
Do your research before diving into a full-time management position.
I tried for 3 years. I "rocked the boat" too much as a p/t sup. Our building wanted more "yes sir" friend/t sups and not ones that thought outside the box I guess. And BTW, I was told that by my friend/t sup when I left... "if you would have just kept your mouth shut..." nice huh?