I'd say we do need some clarification, then. In orientation (2 months ago for me) they told us that since no one would be in payroll on the weekends, and that they pretty much scatter at 5 PM during the week, that the black mailbox was to be used, and they gave us envelopes specifically for that purpose (only two, tho). Said we could also mail them in, but of course Load 1 wasn't going to reimburse postage. I've dropped mine in the black box once on a Sunday afternoon, and twice after hours during the week. All three times the paperwork has made it to my folder. I can tell which ones I put in from the ones they put in, because the ones I put in are still folded over, theirs are opened up flat.