This excerpt taken from the TNS 8-K filed Mar 29, 2007.
(c) Foreign Lenders. Prior to becoming a Lender under this Agreement on or prior to the date on which any such form or certification expires or becomes obsolete, after the
occurrence of any event requiring a change in the most recent form or certification previously delivered by it pursuant to this clause and within fifteen (15) days after a reasonable written request of Borrower or Agent (or in the case of an SPV or a participation, the relevant Lender) from time to time thereafter, each such Person or Lender that is not in each case a United States person (as such term is defined in IRC Section 7701(a)(30)) for U.S. federal income tax purposes (a Foreign Lender) shall provide to Borrower and Agent (or in the case of an SPV or a participation, the relevant Lender), if it is legally entitled to, two completed originals of each of the following, as applicable: (A) Forms W-8ECI (claiming exemption from U.S. withholding tax because the income is effectively connected with a U.S. trade or business), W-8BEN (claiming exemption from, or a reduction of, U.S. withholding tax under an income tax treaty) and/or W-8IMY or any successor forms, (B) in the case of a Foreign Lender claiming exemption under Sections 871(h) or 881(c) of the Code, Form W-8BEN (claiming exemption from U.S. withholding tax under the portfolio interest exemption) or any successor form and a certificate in form and substance acceptable to Agent that such Foreign Lender is not (1) a bank within the meaning of Section 881(c)(3)(A) of the Code, (2) a 10 percent shareholder of Borrower within the meaning of Section 881(c)(3)(B) of the Code or (3) a controlled foreign corporation described in Section 881(c)(3)(C) of the Code or (C) any other applicable document prescribed by the IRS certifying as to the entitlement of such Foreign Lender to such exemption from United States withholding tax or reduced rate with respect to all payments to be made to such Foreign Lender under the Loan Documents (a Certificate of Exemption). If a Foreign Lender is entitled to an exemption with respect to payments to be made to such Foreign Lender under this Agreement and does not provide a Certificate of Exemption to Borrower and Agent within the time periods set forth in the preceding sentence, Borrower shall withhold taxes from payments to such Foreign Lender at the applicable statutory rates and Borrower shall not be required to pay any additional amounts as a result of such withholding, provided that all such withholding shall cease upon delivery by such Foreign Lender of a Certificate of Exemption to Borrower and Agent.
(d) U.S. Lenders. Each Lender other than a Foreign Lender shall (A) on or prior to the date such Person becomes a Lender hereunder, (B) on or prior to the date on which any such form or certification expires or becomes obsolete, (C) after the occurrence of any event requiring a change in the most recent form or certification previously delivered by it pursuant to this clause (f) and (D) from time to time if requested by Borrower or Agent (or, in the case of a participant or SPV, the relevant Lender), provide Agent and Borrower (or, in the case of a participant or SPV, the relevant Lender) with two completed originals of Form W-9 (certifying that such Lender is entitled to an exemption from U.S. backup withholding tax) or any successor form. Each Lender having sold a participation in any of its Obligations or identified an SPV as such to Agent shall collect from such participant or SPV the documents described in this clause (f) and provide them to Agent