§ 253f. Economic order quantities
(a)
Procurement of supplies; costs advantageous to United States
Each executive agency shall procure supplies in such quantity as
(A)
will result in the total cost and unit cost most advantageous to the United States, where practicable, and
(b)
Opinions; economic advantage to United States
Each solicitation for a contract for supplies shall, if practicable, include a provision inviting each offeror responding to the solicitation to state an opinion on whether the quantity of the supplies proposed to be procured is economically advantageous to the United States and, if applicable, to recommend a quantity or quantities which would be more economically advantageous to the United States. Each such recommendation shall include a quotation of the total price and the unit price for supplies procured in each recommended quantity.