To amend title 10, United States Code, to codify and make modifications to certain provisions relating to "Buy American" requirements.

Codifies under Federal armed forces law certain provisions under prior defense appropriations Acts which prohibit funds appropriated or otherwise made available to the Department of Defense from being used to procure the following items if such items are not grown, reprocessed, reused, or produced in the United States: (1) food; (2) clothing; (3) tents, tarpaulins, or covers; (4) cotton and other natural fiber products, silk or silk blends, synthetic fabrics, canvas products, or wool; (5) any equipment manufactured from or containing such fibers, yarns, fabrics, or materials; (6) specialty metals, including stainless steel flatware; and (7) hand or measuring tools. Allows an exception: (1) when the item cannot be procured when needed (after certain congressional notification); (2) for certain procurements outside the United States; (3) for certain specialty metals and chemical warfare protective clothing procured outside the United States; (4) for foods manufactured or processed in the United States; and (5) for small purchases under the defense simplified acquisition threshold.

Makes such prohibitions applicable to contracts for the procurement of commercial items under the Office of Federal Procurement Policy Act.