48 CFR §225.7018-5

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.