Code of Federal Regulations Title 41. Public Contracts and Property Management § 41.101–25.101–5 Supply through local purchase

(a) Urgency of need requires local purchase to assure prompt delivery;

(b) The items are perishable or subject to rapid deterioration which will not permit delay incident to shipment from distant points;

(c) The local purchase is within applicable limitation established by the agency head;  or

(d) Local purchase will produce the greatest economy to the Government.