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                                                             EXHIBIT (a)(5)(iii)

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

GUIDELINES FOR DETERMINING THE PROPER IDENTIFICATION NUMBER TO GIVE TO
CHASEMELLON SHAREHOLDER SERVICES, L.L.C.--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 to ChaseMellon Shareholder
Services, L.L.C.



- ------------------------------------------------------------
                                              GIVE THE
                                           SOCIAL SECURITY
       FOR THIS TYPE OF ACCOUNT:             NUMBER OF--
- ------------------------------------------------------------
                                   
 1.  Individual                          The individual
 2.  Two or more individuals (joint      The actual owner of
     account)                            the account or, if
                                         combined funds, the
                                         first individual on
                                         the account(1)
 3.  Husband and wife (joint account)    The actual owner of
                                         the account or, if
                                         combined funds, the
                                         first individual on
                                         the account(1)
 4.  Custodian account of a minor        The minor(2)
     (Uniform Gift to Minors Act)
 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  The ward, minor or
     committee for a designated ward,    incompetent
     minor or incompetent person         person(3)
 7.  a. The usual revocable savings      The grantor-
        trust account (grantor is also   trustee(1)
        trustee)
     b. So-called trust account that is  The actual owner(1)
        not a legal or valid trust
        under state law
 8.  Sole proprietorship                 The owner(4)
- ------------------------------------------------------------




- ------------------------------------------------------------
                                              GIVE THE
                                           SOCIAL SECURITY
       FOR THIS TYPE OF ACCOUNT:             NUMBER OF--
- ------------------------------------------------------------
                                   
 9.  A valid trust, estate or pension    The legal entity
     trust                               (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                           The corporation
11.  Religious, charitable or            The organization
     educational tax-exempt
     organization
12.  Partnership account held in the     The partnership
     name of the business
13.  Association, club or other tax-     The organization
     exempt organization
14.  A broker or registered nominee      The broker or
                                         nominee
15.  Account with the Department of      The public entity
     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. If
    only one person 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) Show the name of the owner. 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.
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            GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                         NUMBER ON SUBSTITUTE FORM W-9
                                     PAGE 2

OBTAINING A NUMBER
If you don't have a TIN 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, 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 include the following:
 1. 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).
 2. The United States or any of its agencies or instrumentalities.
 3. A state, the District of Columbia, a possession of the United States, or any
    of their political subdivisions or instrumentalities.
 4. A foreign government or any of its political subdivisions, agencies, or
    instrumentalities.
 5.  An international organization or any of its agencies or instrumentalities.
Other payees that MAY BE EXEMPT from backup withholding include:
 6. A corporation.
 7. A foreign central bank of issue.
 8. A dealer in securities or commodities required to register in the United
    States, the District of Columbia, or a possession of the United States.
 9. A futures commission merchant registered with the Commodity Futures Trading
    Commission.
10. A real estate investment trust.
11. An entity registered at all times during the tax year under the Investment
    Company Act of 1940.
12. A common trust fund operated by a bank under section 584(a).
13. A financial institution.
14. A middleman known in the investment community as a nominee or custodian.
15. A trust exempt from tax under section 664 or described in section 4947.

PAYMENTS EXEMPT FROM BACKUP WITHHOLDING
DIVIDENDS AND PATRONAGE DIVIDENDS that generally are exempt from backup
withholding include:
- - 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) distributions made by an ESOP.

INTEREST PAYMENTS that generally are exempt from backup withholding include:
- - 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 a
  correct TIN 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.

Exempt payees described above should file Form W-9 to avoid possible erroneous
backup withholding. FILE THIS FORM WITH THE PAYER, FURNISH YOUR TIN, WRITE
"EXEMPT" ON THE FACE OF THE FORM AND SIGN AND DATE THE FORM.

  Certain payments other than interest, dividends and patronage dividends not
subject to information reporting are also not subject to backup withholding. For
details, see the regulations under Internal Revenue Code sections 6041, 6041A,
6042, 6044, 6045, 6049, 6050A and 6050N.

PRIVACY ACT NOTICE.--Section 6109 of the Internal Revenue Code requires you to
give your correct TIN to persons who must file information returns with the IRS
to report, among other things, interest, dividends, and certain other income
paid to you. The IRS uses the numbers for identification purposes and to help
verify the accuracy of your tax return. The IRS may also provide this
information to the Department of Justice for civil and criminal litigation, and
to cities, states and the District of Columbia to carry out their tax laws. You
must provide your TIN whether or not you are required to file a tax return.
Payers must generally withhold 31% of taxable interest, dividend and certain
other payments to a payee who does not give a TIN to a payer. Certain penalties
may also apply.

PENALTIES
(1) PENALTY FOR FAILURE TO FURNISH TIN.--If you fail to furnish your correct TIN
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) CIVIL AND CRIMINAL PENALTIES FOR FALSE INFORMATION.--If you make a false
statement with no reasonable basis which results in no imposition of backup
withholding, you are subject to a $500 civil penalty. Willfully falsifying
certifications or affirmations may also subject you to criminal penalties
including fines and/or imprisonment.

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