EXHIBIT 99.5

            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 type of
number to give the payer.




         -------------------------------------------------------------
                                              Give the
                                              SOCIAL SECURITY
         For this type of account:            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. Husband and wife (joint           The actual owner of
            account)                          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            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
            designated ward, minor, or        person(3)
            incompetent person

         7. a. The usual revocable            The actual owner(1)
              savings trust account
              (grantor is also trustee)
              b. So-called trust account that
                is not a legal or valid trust
                under State law

         8. Sole proprietorship account       The owner(4)
         -------------------------------------------------------------




        ---------------------------------------------------------------
                                                 Give the EMPLOYER
                                                 IDENTIFICATION
        For this type of account:                number of--
        ---------------------------------------- ----------------------
                                              
        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
        ---------------------------------------------------------------


(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.



            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 ALL payments include
the following:

  .   A corporation.

  .   A financial institution.

  .   An organization exempt from tax under section 501(a), or an individual
      retirement plan.

  .   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 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 non-resident aliens.

  .   Payments on tax-free covenant bonds under section 1451.

  .   Payments made by certain foreign organizations.
  .   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, WRITE "EXEMPT" ON THE FACE OF THE FORM, AND RETURN IT TO
THE PAYER. 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, 6041A(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.