1 EXHIBIT 99.4 GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION NUMBER ON SUBSTITUTE FORM W-9 GUIDELINES FOR DETERMINING THE PROPER IDENTIFICATION NUMBER TO GIVE THE PAYER.--Social Security Numbers have nine digits separated by two hyphens: i.e. 000-00-0000. Employer Identification Numbers have nine digits separated by only one hyphen: i.e. 00-0000000. The table below will help determine the number to give the payer. - ------------------------------------------------------------ GIVE THE FOR THIS TYPE OF ACCOUNT: SOCIAL SECURITY NUMBER OF-- - ------------------------------------------------------------ 1. An individual's account The individual 2. Two or more individuals (joint The actual owner of account) the account or, if combined funds, any one of the individuals(1) 3. Custodian account of a minor The minor(2) 4. a. The usual revocable savings The grantor- trust account (grantor is also trustee(1) trustee) b. So-called trust account that is The actual owner(1) not a legal or valid trust under State law 5. Sole proprietorship account The Owner(3) - ------------------------------------------------------------ - ------------------------------------------------------------ GIVE THE EMPLOYER FOR THIS TYPE OF ACCOUNT: IDENTIFICATION NUMBER OF-- - ------------------------------------------------------------ 6. A valid trust, estate, or pension The legal entity trust (Do not furnish the identifying number of the personal representative or trustee unless the legal entity itself is not designated in the account title.)(4) 7. Corporate account The corporation 8. Religious, charitable, or The organization educational organization account 9. Partnership The partnership 10. Association, club or other tax- The organization exempt organization 11. A broker or registered nominee The broker or nominee 12. Account with the Department of The public entity Agriculture in the name of a public entity (such as a State or local government, school district, or prison) that receives agricultural program payments - ------------------------------------------------------------ (1) List first and circle the name of the person whose number you furnish. (2) Circle the minor's name and furnish the minor's Social Security Number. (3) Show the name of the owner. You may also enter your business name. You may use your Social Security Number or Employer Identification Number. (4) List first and circle the name of the legal trust, estate, or pension trust. NOTE: If no name is circled when there is more than one name, the number will be considered to be that of the first name listed. 2 GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION NUMBER ON SUBSTITUTE FORM W-9 PAGE 2 OBTAINING A NUMBER If you don't have a Taxpayer Identification Number or you don't know your number, obtain Form SS-5, Application for a Social Security Number Card, or Form SS-4, Application for Employer Identification Number, at the local office of the Social Security Administration or the Internal Revenue Service and apply for a number. PAYEES EXEMPT FROM BACKUP WITHHOLDING Payees specifically exempted from backup withholding on broker transactions include the following: (i) A corporation. (ii) A financial institution. (iii) An organization exempt from tax under Section 501(a), or an individual retirement plan. (iv) The United States or any agency or instrumentality thereof. (v) A State, the District of Columbia, a possession of the United States, or any subdivision or instrumentality thereof. (vi) A foreign government, a political subdivision of a foreign government, or any agency or instrumentality thereof. (vii) An international organization or any agency or instrumentality thereof. (viii) A registered dealer in securities or commodities registered in the United States or a possession of the United States. (ix) A real estate investment trust. (x) A common trust fund operated by a bank under Section 584(a). (xi) An entity registered at all times under the Investment Company Act of 1940. (xii) A foreign central bank of issue. (xiii) A person registered under the Investment Advisors Act of 1940 who regularly acts as a broker. Payments of interest not generally subject to backup withholding include the following: (i) Payments to nonresident aliens subject to withholding under Section 1441. (ii) Payments to partnerships not engaged in a trade or business in the United States and which have at least one nonresident partner. (iii) Payments made by certain foreign organizations. Exempt payees described above should file Substitute Form W-9 to avoid possible erroneous backup withholding. FILE THIS FORM WITH THE PAYER, FURNISH YOUR TAXPAYER IDENTIFICATION NUMBER, WRITE "EXEMPT" ON THE FACE OF THE FORM, SIGN AND DATE THE FORM AND RETURN IT TO THE PAYER. PRIVACY ACT NOTICE -- Section 6109 requires most recipients of dividend, interest, or other payments to give Taxpayer Identification Numbers to payers who must report the payments to the IRS. The IRS uses the numbers for identification purposes. Payers must be given the numbers whether or not recipients are required to file tax returns. Payers must generally withhold 31% of taxable interest, dividend, and certain other payments to a payee who does not furnish a Taxpayer Identification Number to a payer. Certain penalties may also apply. PENALTIES (1) PENALTY FOR FAILURE TO FURNISH TAXPAYER IDENTIFICATION NUMBER. -- If you fail to furnish your Taxpayer IDENTIFICATION NUMBER to a payer, you are subject to a penalty of $50 for each such failure unless your failure is due to reasonable cause and not to willful neglect. (2) CIVIL PENALTY FOR FALSE INFORMATION WITH RESPECT TO WITHHOLDING. -- If you make a false statement with no reasonable basis which results in no imposition of backup withholding, you are subject to a penalty of $500. (3) CRIMINAL PENALTY FOR FALSIFYING INFORMATION. -- Falsifying certifications or affirmations may subject you to criminal penalties including fines and/or imprisonment. FOR ADDITIONAL INFORMATION CONTACT YOUR TAX CONSULTANT OR THE IRS.