As prescribed in 229.402-70(c)(1), use the following clause:
Tax Exemptions (Italy) (MAR 2012)
"I certify that this invoice is true and correct and reflects expenditures made in Italy for the Common Defense by the United States Government pursuant to international agreements. The amount to be paid does not include the IVA tax, because this transaction is not subject to the tax in accordance with Article 72 of Decree Law 633, dated October 26, 1972." An authorized United States Government official will sign the copy of the invoice containing this certification.
(End of clause)
48 C.F.R. §§252.229-7003