To answer your question, yes, it is acceptable to cover your tattoos with sweatbands. If they are easily covered, that's the advice I'd give. I'm a driver sup. We have a relatively senior driver group, and its not warm here yet, so I haven't seen this issue come up. (just started this job a few months ago) However, technically tattoos should not be visible. That's part of our culture, like being clean shaven, shoes shined, etc. Personally, I'm proud of our culture, but I know not everyone thinks like me. You will see some drivers "get away with" tattoos, piercings or whatever. It just disappoints me that the first words out of so many UPSers mouths is "they can't get you for this," and "this is what you can get away with." Scary way to think...