This excerpt taken from the AKS 8-K filed Feb 23, 2007.
5.10. Foreign Lenders.
5.10.1. Exemption. Any Foreign Lender that is entitled to an exemption from or reduction of withholding tax under the law of the jurisdiction in which an Obligor is resident for tax purposes, or any treaty to which such jurisdiction is a party, with respect to payments under any Loan Document shall deliver to Agent and Borrower, at the time or times prescribed by Applicable Law or reasonably requested by Agent or Borrower, such properly completed and executed documentation prescribed by Applicable Law as will permit such payments to be made without withholding or at a reduced rate of withholding. In addition, any Lender, if requested by Agent or Borrower, shall deliver such other documentation prescribed by Applicable Law or reasonably requested by Agent or Borrower as will enable Agent and Borrower to determine whether or not such Lender is subject to backup withholding or information reporting requirements.
5.10.2. Documentation. Without limiting the generality of the foregoing, if Borrower is resident for tax purposes in the United States, a Foreign Lender shall deliver to Agent and Borrower (in such number of copies as shall be requested by the recipient) (i) on or prior to the date on which such Foreign Lender becomes a Lender hereunder and (ii) after the occurrence of any change in circumstances relating to the Foreign Lender requiring a change in the most recent form previously delivered by it to the Borrower (and from time to time thereafter upon the request of Agent or Borrower, but only if such Foreign Lender is legally entitled to do so), (a) duly completed copies of IRS Form W-8BEN claiming eligibility for benefits of an income tax treaty to which the United States is a party; (b) duly completed copies of IRS Form W-8ECI; (c) in the case of a Foreign Lender claiming the benefits of the exemption for portfolio interest under section 881(c) of the Code, (i) a certificate to the effect that such Foreign Lender is not (A) a bank within the meaning of section 881(c)(3)(A) of the Code, (B) a 10 percent shareholder of any Obligor within the meaning of section 881(c)(3)(B) and 871(h)(3)(B) of the Code, or (C) a controlled foreign corporation described in section 881(c)(3)(C) of the Code, and (ii) duly completed copies of IRS Form W-8BEN; or (d) any other form prescribed by Applicable Law as a basis for claiming exemption from or a reduction in United States federal withholding tax, duly completed together with such supplementary documentation as may be prescribed by Applicable Law to permit Borrower to determine the withholding or deduction required to be made.
5.11. US Lender. Each Lender (other than a Lender that is treated as a corporation for United States federal income tax purposes) that is incorporated or organized under the laws of the United Sates of America or a state thereof agrees that, prior to the first date any payment is due to be made to it hereunder or under any Note, it will deliver to Agent and Borrower (in such number of copies as shall be requested by the Agent or Borrower), duly completed copies of United States Internal Revenue Service Form W-9 certifying that such Lender is entitled to receive payments hereunder without deduction or withholding of any United States federal backup withholding tax.