My question is there a policy that states that an employee can be asked to work in a different work area? Here is my current situation. I have 10 years seniority as a part-time package handler. The first year I was with the company I was a loader. About 6 months later I became a unloader. I've worked in the unload ever since. I worked the twilight sort for 6 and half years before switching to midnight. When I began midnight I was asked to load. About 4-5 months on midnight I requested to be changed to unload being that I work 8 hours a days prior to the start of my shift at UPS. While I was a loader I was working in excess of 12 and half hours a day. They understood my situation and I was granted a position in the unload. From time to time I would be asked to load to cover a call out or vacation, which I was perfectly okay with. My issue is lately Ive been loading about 4 out of 5 days a week now because our hub is short staffed. They haven't hired a loader prior to seasonal help since maybe around August of 2016. I am highly respected by both part-time and full-time management, I am under that impression because of being requested my name. Also they will send loader employees home and have me take there spot. Which stinks because I am never asked if I want to leave early because I am apparently responsible to make sure no other supervisor "needs" me. It pisses me off when they send people home with far less seniority and don't bother to ask me. I've told my supervisors I prefer to stay in the unload but they listen to what they are told to do and I am feed up with having to load. If someone could respond with a direct policy on whether or not I should push the issue of having to load that would be greatly appreciated!