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Exhibit 99.6

GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
NUMBER ON SUBSTITUTE FORM W-9

Guidelines for Determining the Proper Identification Number to Give the Payor. 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 payor.

For this type of account:		Give the SOCIAL SECURITY number of—
1.	An individual's account	The individual
2.	Two or more individuals (joint account)	The actual owner of the account or, if combined funds, any one of the individuals(1)
3.	Husband and wife (joint account)	The actual owner of the account or, if joint funds, either person(1)
4.	Custodian account of a minor (Uniform Gift to Minors Act)	The minor(2)
5.	Adult and minor (joint account)	The adult or, if the minor is the only contributor, the minor(1)
6.	Account in the name of guardian or committee for a designated ward, minor, or incompetent person	The ward, minor, or incompetent person(3)
7.	a.  The usual revocable savings trust account (grantor is also trustee)	The grantor-trustee(1)
	b.  So-call trust account that is not a legal or valid trust under State law	The actual owner(1)
For this type of account:		Give the EMPLOYER IDENTIFICATION number of—
8.	Sole proprietorship account	The owner(4)
9.	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.)(5)
10.	Corporate account	The corporation
11.	Association, club, religious, charitable, educational or other tax-exempt organization account	The organization
12.	Partnership account held in the name of the partnership	The partnership
13.	Association, club, or other tax-exempt organization	The organization
14.	A broker or registered nominee	The broker or nominee
15.	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 agriculture program payments	The public entity

(1)

List all names 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)

Circle the ward's, minor's or incompetent person's name and furnish such person's Social Security number.

(4)

You must show your individual name, but you may also enter your business or "doing business as" name. You may use either your Social Security number or Employer Identification number (if you have one).

(5)

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

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 Card, or Form SS-4, Application for Employer Identification Number (for business and all other entities), 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 ALL payments of interest include the following:

•

A corporation.



•

A financial institution.



•

An organization exempt from tax under section 501(a) of the Internal Revenue Code of 1986, as amended (the "Code"), or an individual retirement plan, 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 agency or instrumentalities.



•

A State, the District of Columbia, a possession of the United States, or any political subdivision or instrumentality thereof.



•

A foreign government, a political subdivision of a foreign government, or any agency or instrumentality thereof.



•

An international organization or any agency, or instrumentality thereof.



•

A registered dealer in securities or commodities registered in the U.S., the District of Columbia or a possession of the U.S.



•

A real estate investment trust.



•

A common trust fund operated by a bank under section 584(a) of the Code.



•

An exempt charitable remainder trust, or a non-exempt trust described in section 4947(a)(I) of the Code.



•

An entity registered at all times 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.


        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 payor's trade or business and you have not provided your correct taxpayer identification number to the payor.



•

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



•

Payments described in Section 6049(b)(5) of the Code to nonresident aliens.



•

Payments on tax-free covenant bonds under Section 1451 of the Code.



•

Payments made by certain foreign organizations.



•

Mortgage or student loan interest paid to you.


        Exempt payees described above should file a Form W-9 to avoid possible erroneous backup withholding. FILE THIS FORM WITH THE PAYOR, FURNISH YOUR TAXPAYER IDENTIFICATION NUMBER, WRITE "EXEMPT" ON THE FACE OF THE FORM. SIGN AND DATE THE FORM AND RETURN IT TO THE PAYOR. IF YOU ARE A NONRESIDENT ALIEN OR A FOREIGN ENTITY NOT SUBJECT TO BACKUP WITHHOLDING FILE WITH A PAYOR A COMPLETED INTERNAL REVENUE FORM W-8BEN (CERTIFICATE FOREIGN STATUS OF BENEFICIAL OWNER FOR UNITED STATES TAX WITHHOLDING) OR OTHER APPROPRIATE W-8).

        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 the regulations under Section 6041, 6041A, 6042, 6044, 6045, 6049, 6050(A), and 6050(N) of the Code and the regulations promulgated thereunder.

Privacy Act Notice

Section 6109 requires most recipients of dividends, interest, or other payments to give taxpayer identification numbers to payors who must report the payments to the IRS. The IRS uses the numbers for identification purposes. Payors must be given the numbers whether or not recipients are required to file tax returns. Payors must generally withhold between 28% and 31%, depending on the year, of taxable interest, dividends and certain other payments to a payee who does not furnish a taxpayer identification number to a payor. 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 payor, you are subject to a penalty of $50 for each such failure unless your failure is due to reasonable cause and not to wilful neglect.

(2)

Failure to Report Certain Dividend and Interest Information.—If you fail to include any portion of an includible payment for interest, dividends or patronage dividends in gross income, such failure will be treated as being due to negligence and will be subject to a penalty of 5% on any portion of an underpayment attributable to that failure unless there is clear and convincing evidence to the contrary.

(3)

Civil Penalty for False Information with Respect to Withholding—If you make a false statement with no reasonable basis that results in no imposition of backup withholding, you are subject to a penalty of $500.

(4)

Criminal Penalty for Falsifying Information.—Willfully falsifying certifications or affirmations may subject you to criminal penalties including fines and/or imprisonment. FOR ADDITIONAL INFORMATION CONTACT YOUR TAX CONSULTANT OR THE INTERNAL REVENUE SERVICE.

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GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION NUMBER ON SUBSTITUTE FORM W-9
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