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                                                                    EXHIBIT 99.5

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

FOR THIS TYPE OF ACCOUNT:
- -------------------------------------------------------------
- -------------------------------------------------------------

 1. An individual's
account

 2. Two or more
    individuals
    (joint account)
 3. Husband and wife
    (joint account)
 4. Custodian account of
    a minor (Uniform
    Gift to Minors Act)
 5. Adult and minor
    (joint account)
 6. Account in the name
    of guardian or
    committee for a
    designated ward,
    minor, or
    incompetent person
 7. a. The usual
       revocable savings
       trust account
       (grantor is also
       trustee)
   b. So-called trust
      account that is
      not a legal or
      valid trust under

      State law

GIVE THE

SOCIAL SECURITY

NUMBER OF --

The individual

The actual owner of the account or, if
                     combined funds,
                     any one of the
                     individuals(1)

The actual owner of the account or, if
                     joint funds,
                     either person(1)

The minor(2)

The adult or, if the minor is the only
                     contributor, the
                     minor(1)

The ward, minor, or incompetent person(3)

The grantor-trustee(1)

The actual owner(1)

FOR THIS TYPE OF ACCOUNT:

 8. Sole proprietorship account

 9. A valid trust, estate, or pension trust

10. Corporate account

11. Religious, charitable, or educational organization
    account

12. Partnership account held in the name of the business

13. Association, club, or other tax-exempt organization

14. A broker or registered 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
    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 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" name. You may use either your Social Security Number or
  Employer Identification Number.

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.

GIVE THE EMPLOYER

IDENTIFICATION

NUMBER OF --

The Owner(4)

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)

The corporation

The organization

The partnership

The organization

The broker or nominee

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

                                     PAGE 2

OBTAINING A NUMBER
If you do not have a taxpayer identification number or if you do not know your
number, obtain Form SS-5, Application for 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 (the "IRS") and
apply for a number.

Payees specifically exempted from backup withholding on ALL payments by brokers
include the following:
- -   A corporation.
- -   A financial institution.
- -   An organization exempt from a tax under Section 501(a), 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 instrumentality thereof.
- -   A State, the District of Columbia, a possession of the United States, or any
    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. or a
    possession of the U.S.
- -   A real estate investment trust.
- -   A common trust fund operated by a bank under Section 584(a).
- -   An entity registered at all times under the Investment Company Act of 1940.
- -   A foreign central bank of issue.
- -   A futures commission merchant registered with the Commodity Futures Trading
    Commission.
- -   A person registered under the Investment Advisors Act of 1940 who regularly
    acts as a broker.

  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 U.S. and
    which have at least one nonresident partner.
- -   Payments of patronage dividends where the amount received is not paid in
    money.
- -   Payments made by certain foreign organizations.
- -   Payments made to a nominee.

  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 corporations.
- -   Payments made to a nominee.

Exempt payees described above should file Form W-9 to avoid possible erroneous
backup withholding. FILE THIS FORM WITH THE PAYER, FURNISH YOUR TAXPAYER
IDENTIFICATION NUMBER, CHECK "EXEMPT" IN PART II OF THE FORM, SIGN AND DATE THE
FORM AND RETURN IT TO THE PAYER.

  Certain payments other than interest, dividends, and patronage dividends,
which are not subject to information reporting are also not subject to backup
withholding. For details, see the regulations under Section 6041, 6041(A)(a),
6045, and 6050A.

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 IRS. IRS uses the numbers for identification
purposes. Payers must be given the numbers whether or not recipients are
required to file tax returns. Beginning January 1, 1993, 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) FAILURE TO REPORT CERTAIN DIVIDEND AND INTEREST PAYMENTS.--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 under-
payment 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 which results in no imposition
of backup withholding, you are subject to a penalty of $500.

(4) 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 INTERNAL REVENUE
SERVICE.