EXHIBIT 99.6
EXHIBIT (a)(1)(F)

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.

      To ensure compliance with Treasury Department Circular 230, you are hereby notified that: (a) any federal tax advice contained herein is not intended or written to be used, and cannot be used, by any taxpayer for the purpose of avoiding penalties that may be imposed under the Internal Revenue Code; (b) the advice is written in connection with the promotion or marketing of the transaction or the matters addressed herein; and (c) the taxpayer should seek advice based on the taxpayer’s particular circumstances from an independent tax advisor.

		Give the name and
		SOCIAL
		SECURITY
For this Type of Account:		Number of —
1.	Individual	The individual
2.	Two or more individuals (joint account)	The actual owner of the account or, if combined funds, the first individual on the account.(1)
3.	Custodian account of a minor (Uniform Gift to Minors Act)	The minor(2)
4.	a. The usual revocable savings trust account (grantor is also trustee)	The grantor-trustee(1)
	b. So-called trust account that is not a legal or valid trust under state law	The actual owner(1)
5.	Sole proprietorship or single- owner LLC	The owner(3)
6.	Sole proprietorship or single- owner LLC	The owner(3)

		Give the name and
		EMPLOYER IDENTIFICATION
For this Type of Account:		Number of —
7.	A valid trust, estate, or pension trust	The legal entity (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)
8.	Corporate or LLC electing corporate status on Form 8832	The corporation
9.	Association, club, religious, charitable, educational, or other tax-exempt organization	The organization
10.	Partnership or multi-member LLC	The partnership
11.	A broker or registered nominee	The broker or nominee
12.	Account with the Department of Agriculture in the name of a public entity (such as a State or local government, school district, or prison) that receives agricultural program payments	The public entity

(1)	List first and circle the name of the person whose number you furnish. If only one person on a joint account has a social security number, that person’s number must be furnished.
(2)	Circle the minor’s name and furnish the minor’s social security number.
(3)	Show the individual name of the owner. Either the social security number or employer identification number may be furnished.
(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.

GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION

NUMBER ON SUBSTITUTE FORM W-9

Obtaining a Number

If you do not have a Taxpayer Identification Number or you do not know your number, obtain Form SS-5, Application for a Social Security Number Card, Form W-7, Application for IRS Individual Taxpayer Identification Number or Form SS-4, Application for Employer Identification Number, at the local office of the Social Security Administration or the Internal Revenue Service or by calling 1 (800) TAX-FORM and apply for a number.

Payees Exempt from Backup Withholding

Payees specifically exempted from backup withholding on ALL payments include the following:

    •  An organization exempt from tax under Section 501(a), any IRA, or a custodial account under Section 403(b)(7) if the account satisfies the requirements of Section 401(f)(2).

    •  The United States or any of its agencies or instrumentalities.

    •  A state, the District of Columbia, a possession of the United States, or any of their political subdivisions or instrumentalities.

    •  A foreign government or any of its political subdivisions, agencies or instrumentalities.

    •  An international organization or any of its agencies, or instrumentalities.

    Other payees that may be exempt from backup withholding include:

    •  A corporation.

    •  A financial institution.

    •  A dealer in securities or commodities required to register in the United States, the District of Columbia, or a possession of the United States

    •  A real estate investment trust.

    •  A common trust fund operated by a bank under Section 584(a).

    •  A trust exempt from tax under Section 664 or described in Section 4947.

    •  An entity registered at all times during the tax year under the Investment Company Act of 1940.

    •  A foreign central bank of issue.

    •  A middleman known in the investment community as a nominee or custodian.

    •  A futures commission merchant registered with the Commodity Futures Trading Commission.

    Payments of dividends and patronage dividends not generally subject to backup withholding include the following:

    •  Payments to nonresident aliens subject to withholding under Section 1441.

    •  Payments to partnerships not engaged in a trade or business in the United States and that have at least one nonresident alien partner.

    •  Payments of patronage dividends not paid in money.

    •  Payments made by certain foreign organizations.

    •  Section 404(k) distribution made by an ESOP.

    Payments of interest not generally subject to backup withholding include the following:

    •  Payments of interest on obligations issued by individuals. Note: You may be subject to backup withholding if this interest is $600 or more and is paid in the course of the payer’s trade or business and you have not provided your correct Taxpayer Identification Number to the payer.

    •  Payments of tax-exempt interest (including exempt-interest dividends under Section 852).

    •  Payments described in Section 6049(b)(5) to nonresident aliens.

    •  Payments on tax-free covenant bonds under Section 1451.

    •  Payments made by certain foreign organizations.

    •  Mortgage or student loan interest paid to you.

Exempt payees described above should file Substitute Form W-9 to avoid possible backup withholding. IF YOU ARE AN EXEMPT PAYEE, CHECK THE BOX ON THE FACE OF THE FORM IN PART 2, SIGN AND DATE THE FORM, AND RETURN IT TO THE PAYER. Certain payments, other than interest, dividends, and patronage dividends, that are not subject to information reporting are also not subject to backup withholding. For details, see Sections 6041, 6041A(a), 6042, 6044, 6045, 6049, 6050A, AND 6050N and the regulations thereunder.

    Privacy Act Notice. — Section 6109 requires most recipients of dividend, interest, or other payments to give their correct Taxpayer Identification Numbers to payers who must report the payments to the IRS. The IRS uses the numbers for identification purposes and to help verify the accuracy of tax returns. Payers must be given the numbers whether or not payees are required to file tax returns. Payers must generally withhold a certain percentage 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 requester, 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 that results in no backup withholding, you are subject to a penalty of $500.

(3) Criminal Penalty for Falsifying Information. — Willfully falsifying certifications or affirmations may subject you to criminal penalties including fines and/or imprisonment.

(4) Misuse of Taxpayer Identification Numbers. — If the requester discloses or uses Taxpayer Identification Numbers in violation of federal law, the requester may be subject to civil and criminal penalties.

FOR ADDITIONAL INFORMATION CONTACT YOUR TAX CONSULTANT OR THE INTERNAL REVENUE SERVICE.