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


OBTAINING A NUMBER
If you do not have a  taxpayer  identification  number  or you do not 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 (the "IRS") and
apply for a number.

To  complete  the   Substitute   Form  W-9,  if  you  do  not  have  a  taxpayer
identification  number,  write  "Applied  For" in the  space  for  the  taxpayer
identification  number  in Part 1,  sign and date the  Form,  and give it to the
requester.  Generally,  you  will  then  have  60  days  to  obtain  a  taxpayer
identification number and furnish it to the requester. If the requester does not
receive  your  taxpayer  identification  number  by the  time  of  payment,  the
requester  will  withhold  a  portion  of all  such  payments  until a  taxpayer
identification  number is provided to the  requester.  If the requester does not
receive  your  taxpayer  identification  number  within 60 days,  such  retained
amounts will be remitted to the IRS as backup  withholding  and a portion of all
reportable  payments made to you thereafter will be withheld and remitted to the
IRS until you provide a taxpayer identification number.


PAYEES EXEMPT FROM BACKUP WITHHOLDING
Payees specifically  exempted from backup withholding on ALL broker transactions
and interest and dividend payments include the following:

   o A corporation.
   o A financial institution.
   o 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).
   o The United States or any agency or instrumentality thereof.
   o A State,  the District of Columbia,  a possession of the United States,  or
     any subdivision or instrumentality thereof.
   o A foreign government,  a political subdivision of a foreign government,  or
     any agency or instrumentality thereof.
   o An international organization or any agency, or instrumentality thereof.
   o A dealer in securities or commodities required to register in the U.S. or a
     possession of the U.S.
   o A real estate investment trust.
   o A common trust fund operated by a bank under section  584(a) of the Code.
   o An exempt  charitable  remainder  trust or a non-exempt  trust described in
     section 4947(a)(1).
   o An entity registered at all times under the Investment Company Act of 1940.
   o A foreign central bank of issue.

Payments of dividends  and patronage  dividends not generally  subject to backup
withholding include the following:

   o Payments to nonresident aliens subject to withholding under section 1441.
   o Payments to partnerships not engaged in a trade or business in the U.S. and
     which have at least one non-resident alien partner.
   o Payments of patronage dividends not paid in money.
   o Payments made by certain foreign organizations.
   o Payments made to a nominee.

Payments of interest not  generally  subject to backup  withholding  include the
following:

   o Payments of interest on obligations issued by individuals.
   o Payments of tax-exempt interest (including  exempt-interest dividends under
     section 852 of the Code).
   o Payments described in Code section 6049(b)(5) to non-resident aliens.
   o Payments on tax-free covenant bonds under section 1451 of the Code.
   o Payments  made by  certain  foreign  organizations.
   o Payments made to a nominee.

Exempt payees  described above should file Substitute Form W-9 to avoid possible
erroneous backup withholding.

ENTER YOUR TAXPAYER  IDENTIFICATION  NUMBER,  WRITE  "EXEMPT" ON THE FACE OF THE
FORM, SIGN AND DATE THE FORM AND RETURN IT TO THE PAYOR.

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. The IRS uses the numbers for identification
purposes  and to help verify the  accuracy  of your tax  return.  Payors must be
given the numbers  whether or not  recipients  are required to file tax returns.
Payors must  generally  withhold a portion 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) 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 and such  failure is due to  negligence,  a
penalty of 20% is imposed on any portion of an underpayment attributable to that
failure.
(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.--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.



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


GUIDELINES FOR DETERMINING THE PROPER NAME AND IDENTIFICATION NUMBER TO GIVE THE
PAYOR.

     The taxpayer  identification  number for an individual is the  individual's
social security  number.  Social security  numbers have nine digits separated by
two hyphens: i.e., 000-00-0000. The taxpayer identification number for an entity
is the entity's employer  identification number. 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.



- --------------------------------------------------------------------------------
                                                      GIVE THE NAME
FOR THIS TYPE OF ACCOUNT:                             AND TAXPAYER
                                                      IDENTIFICATION
                                                      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             The minor (2)
    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, minor            incompetent person (3)
    or incompetent person

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


- --------------------------------------------------------------------------------
                                                      GIVE THE NAME
FOR THIS TYPE OF ACCOUNT:                             AND TAXPAYER
                                                      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,         The organization
    educational or other tax-exempt
    organization account

12. Partnership account                               The partnership

13. A broker or registered nominee                    The broker or nominee

14. 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.
(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.
(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.