Unless acquiring items outside the United States for use outside the United States or a nonavailability determination has been made in accordance with 225.7018-4 , use the clause at 252.225-7052 , Restriction on Acquisition of Certain Magnets, Tantalum, and Tungsten, in solicitations and contracts, including solicitations and contracts using FAR part 12 procedures for the acquisition of commercial products and commercial services, that exceed the simplified acquisition threshold.