<PAGE>
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.
<TABLE>
<CAPTION>
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Give the
For this type of account: SOCIAL
SECURITY
number of --
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<S> <C>
1. An individual's account The individual
2. Two or more individuals The actual owner of
(joint account) the account or, if
combined funds, the
first individual on
the account(1)
3. Husband and wife (joint The actual owner of
account) the account or, if
joint funds, either
person(1)
4. Custodian account of a minor The minor(2)
(Uniform Gift to Minors Act)
5. Adult and minor (joint The adult or, if the
account) minor is the only
contributor, the
minor(1)
6. Account in the name of The ward, minor, or
guardian or committee for a incompetent person(3)
designated ward, minor, or
incompetent person
7. a. The usual revocable The grantor-
savings trust account trustee(1)
(grantor is also
trustee)
b. So-called trust account The actual owner(1)
that is not a legal or
valid trust under State
law
8. Sole proprietorship account The owner(4)
<CAPTION>
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For this type of account: Give the
EMPLOYER
IDENTIFICATION
number of --
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<S> <C>
9. A valid trust, estate, or The legal entity (Do
pension trust 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. Religious, charitable, or The organization
educational organization
account
12. Partnership account held in The partnership
the name of the business
13. Association, club or other The organization
tax-exempt organization
14. A broker or registered The broker or nominee
nominee
15. Account with the Department The public entity
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
</TABLE>
(1) List first and circle the name of the person whose number you furnish.
(2) Circle the minor's name and furnish 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) Show the name of the owner.
(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.
<PAGE>
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.
PAYEES EXEMPT FROM BACKUP WITHHOLDING
Payees specifically exempted from backup withholding on ALL payments include the
following:
A corporation.
A financial institution.
An organization exempt from tax under section 501(a), an individual retirement
plan or a custodial account under Section 403(b)(7).
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 exempt charitable remainder trust, or a non-exempt trust described in
section 4947(a)(1).
An entity registered at all times under the Investment Company Act of 1940.
A foreign central bank of issue.
PAYMENTS NOT GENERALLY SUBJECT TO BACKUP WITHHOLDING
Payment 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 renewed 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 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).
Payments described in section 6049(b)(5) to non-resident aliens.
Payments on tax-free covenant bonds under section 1451.
Payments made by certain foreign organizations.
Payments made to a nominee.
EXEMPT PAYEE DESCRIBED ABOVE SHOULD FILE 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, AND RETURN IT TO
THE PAYOR. IF THE PAYMENTS ARE INTEREST, DIVIDENDS, OR PATRONAGE DIVIDENDS, ALSO
SIGN AND DATE THE FORM.
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 sections 6041, 604lA(a),
6045 and 6050A.
PRIVACY ACT NOTICE -- Section 6109 requires most recipients of dividend,
interest, or other payments to give taxpayer identification numbers to payors
who must report the payments to IRS. 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 31% of taxable
interest, dividend, 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 willful neglect.
(2) CIVIL PENALTY FOR FALSE INFORMATION WITH RESPECT TO WITHHOLDER. -- 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 INTERNAL REVENUE
SERVICE.
