Distribution Supply is a room or department located on the Severed Floor that dispenses office products and perhaps other items. After Mark spills his coffee on Ms. Casey's notepad while she is spending the day “observing” Helly, Ms. Casey indicates she must obtain a new notepad from Distribution Supply. She says the location is “eight minutes, round trip” from Macrodata Refinement. We do not see the location on screen, though Ms. Casey soon returns with an armful of notepads after passing Burt in the Conference Room.