The Department Buyer should be considered the "Purchasing Authority" in your department. This is the person that knows their way around your funding, object codes, restricted items and purchasing guidelines. This role will really be the final set of eyes on all of your orders and should be the one to make sure that what was initially selected by the Requester was correct. The Department Buyer should always ensure that they have selected a commodity code(s) and object code(s) for the order, the correct 'sub' for the funding and that any restricted items are marked.