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

     GUIDELINES FOR DETERMINING THE PROPER  IDENTIFICATION  NUMBER FOR THE PAYEE
(YOU) 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.  All  OSectionO  references  are to the
Internal  revenue  Code of  1986,  as  amended.  OIRSO is the  Internal  Revenue
Service.






                                 GIVE THE SOCIAL                                                            GIVE THE EMPLOYER
FOR THIS TYPE OF ACCOUNT:        SECURITY NUMBER OF--                       FOR THIS TYPE OF ACCOUNT:    DENTIFICATION NUMBER OF--
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                
1.   Individual                  Individual                                   6.   Sole Proprietorship         The Owner(3)

2.   Two or more individuals     The actual owner of the                      7.   A Valid Trust, Estate or    The Legal Entity(4)
     (joint account)             account or, if combined funds, the                Pension Trust
                                 first individual on the account(1)
                                                                              8.   Corporate                   The Corporation
3.   Custodian account of a      The minor(2)
     minor (Uniform Gift to                                                   9.   Association, Club,          The Organization
     Minors Act)                                                                   Religious, Charitable,
                                                                                   Educational or Other
4.   (a) The usual revocable     The grantor-trustee(1)                            Tax-exempt
savings trust account                                                              Organization
(grantor is also
trustee)                                                                      10.  Partnership                 The Partnership

     (b) So-called trust         The actual owner(1)                          11.  A Broker or Registered      The Broker or Nomine
account that is not a                                                         Nominee
legal or valid trust
under State law                                                               12.  Account With the            The Public Entity
                                                                              Department of
5.   Sole proprietorship         The owner(3)                                 Agriculture in the Name
account                                                                       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 on a joint  account  has a social  security  number,  that
     person's number must be furnished.
(2)  Circle the minor's name and furnish minor's social security number.
(3)  You must show your individual name, but you may also enter your business or
     Odoing business asO name. You may use either your social security number or
     your employer identification number (if you have one).
(4)  List first and circle the name of the legal trust, estate or pension trust.
     (Do  not  furnish  the  taxpayer  identification  number  of  the  personal
     representative  or trustee unless the legal entity itself is not designated
     in the account title.)

Note:If no name is circled when there is more than one name  listed,  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:

o    A corporation.

o    A financial institution.

o    An  organization  exempt  from tax  under  Section  501(a),  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).

o    A trust exempt from tax under  Section 664 or described in Section  4947:

o    An entity registered at all times under the Investment Company Act of 1940.

o    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:

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  nonresident  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. 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.

o    Payments of tax-exempt interest (including  exempt-interest dividends under
     Section 852).

o    Payments described in Section 6049(b)(5) to non-resident aliens.

o    Payments on tax-free covenant bonds under Section 1451.

o    Payments  made by  certain  foreign  organizations.

o    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  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),
6042, 6044, 6045, 6049, 6050A and 6050N.





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 the IRS.  The 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.