(i) Except for construction material that consists wholly or predominantly of iron or steel or a combination of both, the cost of domestic components must exceed 55 percent of the cost of all the components. In accordance with 41 U.S.C. 1907, this domestic content test of the Buy American statute has been waived for acquisitions of COTS items (see 12.505(a)).

(ii) For construction material that consists wholly or predominantly of iron or steel or a combination of both, the cost of foreign iron and steel must constitute less than 5 percent of the cost of all the components used in such construction material (see the definition of “foreign iron and steel” at 25.003). The cost of foreign iron and steel includes but is not limited to the cost of foreign iron or steel mill products (such as bar, billet, slab, wire, plate, or sheet), castings, or forgings utilized in the manufacture of the construction material and a good faith estimate of the cost of all foreign iron or steel components excluding COTS fasteners. This domestic content test of the Buy American statute has not been waived for acquisitions of COTS items in this category, except for COTS fasteners.