41 CFR 101-25.101-5: -25.101-5 Supply through local purchase.

The following criteria shall govern in determining whether an item should be supplied 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.