<Page>
                                                                    Exhibit 99.1

                          EDISON MISSION HOLDINGS CO.

                    8.137% Senior Secured Bonds due 2019 and

                      8.734% Senior Secured Bonds due 2026

                                  CONSENT FORM
       Consent to Proposed Amendments, Proposed Waivers and Authorization
                 Pursuant to the Consent Solicitation Statement
                             Dated          , 2001
                   TO: The Bank of New York (as successor to
                   United States Trust Company of New York),
                                   as Trustee

  BY OVERNIGHT COURIER, HAND DELIVERY, OR MAIL, FIRST CLASS, POSTAGE PREPAID:

                              THE BANK OF NEW YORK
                  C/O UNITED STATES TRUST COMPANY OF NEW YORK
                              114 WEST 47TH STREET
                                   25TH FLOOR
                            NEW YORK, NEW YORK 10036
                   ATTENTION: CORPORATE TRUST ADMINISTRATION
                           TELEPHONE: (212) 852-1034

                 BY FACSIMILE (CONFIRMED BY PHYSICAL DELIVERY):
                           Facsimile: (212) 852-1625

    This consent form relates to the solicitation of consents made by Edison
Mission Holdings Co., a California corporation, only to holders, as defined in
this consent form, of its 8.137% Senior Secured Bonds due 2019 and its 8.734%
Senior Secured Bonds due 2026, collectively the bonds, as described in the
accompanying consent solicitation statement dated          , 2001 of Edison
Mission Holdings. The term "registered holder" as used in this consent form
means any person in whose name bonds were registered in the register maintained
by The Bank of New York, as successor to United States Trust Company of New
York, as trustee under the indenture dated as of May 27, 1999 between Edison
Mission Holdings and The Bank of New York as of the close of business on
       , 2001, which is the record date. The term "holder" as used in this
consent form means (1) a registered holder or (2) any other person who has been
authorized by proxy or in any other manner acceptable to Edison Mission Holdings
(or any other person claiming title by or through such person) to vote the bonds
on behalf of a registered holder.

    CONSENT FORMS SHOULD BE DELIVERED TO THE BANK OF NEW YORK AS THE TRUSTEE
(NOT TO EDISON MISSION HOLDINGS, THE SOLICITATION AGENTS OR THE INFORMATION
AGENT). IN NO EVENT SHOULD A HOLDER TENDER OR DELIVER BONDS. IF AND WHEN EDISON
MISSION HOLDINGS RECEIVES THE REQUISITE CONSENTS AND THE SALE-LEASEBACK
TRANSACTION AS DESCRIBED IN THE CONSENT SOLICITATION STATEMENT IS CONSUMMATED,
THE BONDS WILL BE REPLACED BY A LIKE AMOUNT OF PASS-THROUGH BONDS.

    ANY BENEFICIAL OWNER OR REGISTERED HOLDER WHO IS NOT THE REGISTERED HOLDER
OF THE BONDS WITH RESPECT TO WHICH A CONSENT FORM IS DELIVERED BUT WHO DESIRES
TO GIVE A CONSENT AND THUS BE ENTITLED TO RECEIVE A CONSENT PAYMENT, MUST BE
AUTHORIZED BY PROXY OR IN ANY OTHER MANNER ACCEPTABLE TO EDISON MISSION HOLDINGS
TO VOTE BONDS ON BEHALF OF A REGISTERED HOLDER AND EVIDENCE OF AUTHORITY MUST BE
DELIVERED TO THE TRUSTEE.
<Page>
                                    CONSENT

    By execution of this consent form, the undersigned acknowledges receipt of
the consent solicitation statement. The undersigned hereby represents and
warrants that the undersigned is a holder of the bonds indicated below and has
full power and authority to take the action indicated below in respect of those
bonds. The undersigned will, upon request, execute and deliver any additional
documents deemed by Edison Mission Holdings to be necessary or desirable to
perfect the undersigned's consent or evidence such power and authority.

    The undersigned acknowledges that the undersigned must comply with the
provisions of this consent form, and complete the information required in this
consent form, to validly consent to the effectuation of the sale-leaseback
transaction, the proposed amendments, the proposed waivers and an authorization
to amend the indenture and related security documents, which are all as
described in the consent solicitation statement.

    Please indicate by marking the appropriate box below whether you wish
(1) to consent to the effectuation of the sale-leaseback transaction, the
proposed amendments, the proposed waivers and the authorization, all as more
fully described in the consent solicitation statement, (2) not to consent to the
effectuation of the sale-leaseback transaction, the proposed amendments, the
proposed waivers and the authorization or (3) to abstain from taking action with
respect to the effectuation of the sale-leaseback transaction, the proposed
amendments, the proposed waivers and the authorization. The undersigned
acknowledges that a consent form delivered under any one of the procedures
described under the heading "The Consent Solicitation" in the consent
solicitation statement and in the instructions to this consent form will
constitute a binding agreement between the undersigned and Edison Mission
Holdings upon the terms and subject to the conditions of the consent
solicitation. THE UNDERSIGNED FURTHER UNDERSTANDS THAT IF NO BOX IS CHECKED, BUT
THIS CONSENT FORM IS EXECUTED AND DELIVERED TO THE TRUSTEE, THE UNDERSIGNED WILL
BE DEEMED TO HAVE CONSENTED TO THE EFFECTUATION OF THE SALE-LEASEBACK
TRANSACTION, THE PROPOSED AMENDMENTS, THE PROPOSED WAIVERS AND THE
AUTHORIZATION.

<Table>
                                                        
           CONSENT                    DO NOT CONSENT                     ABSTAIN
             / /                            / /                            / /
</Table>

    Unless otherwise specified in the table below, this consent form relates to
(1) the total principal amount of bonds held of record by the undersigned at the
close of business on the record date or (2) if the undersigned is not a
registered holder and this consent relates to bonds in respect of which the
undersigned is acting pursuant to a proxy or other authority given by the
registered holder, the total principal amount of bonds to which the proxy or
other authority given by the registered holder relates. If this consent
form relates to less than the total principal amount of bonds so registered in
the name of the undersigned or to which a proxy or other authorization relates,
the undersigned has listed on the table below the certificate numbers and
principal amounts of bonds for which consent is given. Consents with respect to
less than the total principal amount of bonds must be in integral multiples of
$1,000. If the space provided below is inadequate, list the certificate numbers
and principal amounts on a separate signed schedule and affix the list to this
consent form.

                                       2
<Page>
              DESCRIPTION OF BONDS AS TO WHICH CONSENTS ARE GIVEN

<Table>
<Caption>
     NAME(S) AND                                                      PRINCIPAL AMOUNT WITH
   ADDRESS(ES) OF                               AGGREGATE PRINCIPAL     RESPECT TO WHICH
 REGISTERED HOLDERS    CERTIFICATE NUMBER(S)*    AMOUNT OF BONDS**    CONSENTS ARE GIVEN**
---------------------  ----------------------  ---------------------  ---------------------
                                                             

                       TOTAL: PRINCIPAL AMOUNT
                       CONSENTING U.S.$
</Table>

------------------------

*   Need not be completed by holders whose bonds are held of record by
    depositories.

**  Unless otherwise indicated in the column labeled "Principal Amount With
    Respect to Which Consents are Given," the holder will be deemed to have
    consented in respect of the entire aggregate principal amount represented by
    the bonds indicated in the column labeled "Aggregate Principal Amount of
    Bonds."

                                       3
<Page>
                          CONSENT PAYMENT INSTRUCTIONS

    If the requisite consents are received on or before the expiration date and
if specified other conditions described in the consent solicitation statement
are satisfied or waived, Edison Mission Holdings will, on or before the
expiration date, pay to each holder who has validly delivered a consent (which
has not been revoked) on or before the expiration date a one-time consent
payment of U.S.$  in cash for each U.S.$1,000 in principal amount of bonds in
respect of which the consent has been validly delivered. THE DELIVERY OF ALL
DOCUMENTS, INCLUDING FULLY EXECUTED CONSENT FORMS, IS AT THE ELECTION AND RISK
OF THE HOLDER.

    In order for a consent to be valid and effective, the consent form must be
properly completed, executed and received by the trustee on or before the
expiration date. The execution of the amended and restated indenture and the
consent payment are conditioned on (a) there being validly delivered, on or
before the expiration date, the requisite consents, and (b) the absence of any
law or regulation which would, and the absence of any injunction or action or
other proceeding (pending or threatened) which (in the case of any action or
proceeding, if adversely determined) would, make unlawful or invalid or enjoin
the implementation of the proposed amendments, the proposed waivers and the
authorization, the entering into of the amended and restated indenture or the
making of the consent payment or question the legality or validity thereof.

    Consent payments will be made by deposit with the trustee, which will act as
agent for the holders and transmit the payments to the holders. The consent
payments may be made by check. Please indicate below to whom the consent payment
should be made.

-------------------------------------------

                          SPECIAL PAYMENT INSTRUCTIONS

      To be completed ONLY if a check for consent payment is to be issued in
  the name of and sent to someone other than the undersigned.

  Issue Check to:

  Name: ______________________________________________________________________
                                 (PLEASE PRINT)

  Address: ___________________________________________________________________

  ____________________________________________________________________________
  ____________________________________________________________________________
                               (INCLUDE ZIP CODE)

   __________________________________________________________________________
               (TAX IDENTIFICATION OR SOCIAL SECURITY NUMBER(S)*
                                   OF PAYEE)

------------------------------------------------------
------------------------------------------------------

                         SPECIAL DELIVERY INSTRUCTIONS

      To be completed ONLY if a check for consent payment is to be sent to the
  undersigned at an address other than that shown on page 4 of this document
  or, if the box immediately to the left is filled in, other than the address
  appearing therein.

  Mail Check to:

  Name: ______________________________________________________________________
                                 (PLEASE PRINT)

  Address: ___________________________________________________________________

  ____________________________________________________________________________

  ____________________________________________________________________________
                               (INCLUDE ZIP CODE)

------------------------------------------------------

------------------------------

*   Please also complete the enclosed Substitute Form W-9

    The undersigned authorizes the trustee to deliver this consent form and any
proxy delivered in connection with this consent form to Edison Mission Holdings
as evidence of the undersigned's consent to the effectuation of the
sale-leaseback transaction, the proposed amendments, the proposed waivers and
the authorization.

    IMPORTANT--PLEASE READ ACCOMPANYING INSTRUCTIONS CAREFULLY

                                       4
<Page>
                           IMPORTANT--READ CAREFULLY

    If this consent form is executed by the registered holder(s), it must be
executed in exactly the same manner as the name(s) appear(s) on the bonds. In
addition, a DTC participant may execute this consent form exactly as its name
appears on DTC's securities position listing as of the record date. If bonds are
held of record by two or more joint holders, all these holders must sign the
consent form. If a signature is by a trustee, partner, executor, administrator,
guardian, attorney-in-fact, officer of a corporation or other person acting in a
fiduciary or representative capacity, the person should so indicate when signing
and must submit with this consent form appropriate evidence satisfactory to
Edison Mission Holdings of the person's authority to so act. If bonds are
registered in different names, separate consent forms must be executed covering
each form of registration. If a consent form is executed by a person other than
the registered holder, it must be accompanied by a proxy duly executed by the
registered holder.

--------------------------------------------------------------------------------

                                   SIGN HERE

  ____________________________________________________________________________

  ____________________________________________________________________________
                           SIGNATURE(S) OF HOLDER(S)

  Date: ______________________________________________________________________

  Name(s): ___________________________________________________________________

  ____________________________________________________________________________
                                 (PLEASE PRINT)

  Capacity: __________________________________________________________________

  Address: ___________________________________________________________________

  ____________________________________________________________________________

  ____________________________________________________________________________

  ____________________________________________________________________________
                               (INCLUDE ZIP CODE)

  Area Code and Telephone No.: (   )__________________________________________

  Tax ID or Social Security No.: _____________________________________________

                           GUARANTEE OF SIGNATURE(S)

  Authorized Signature: ______________________________________________________

  Name and Title: ____________________________________________________________
                                 (PLEASE PRINT)

  Dated: _____________________________________________________________________

  Name of Firm: ______________________________________________________________
--------------------------------------------------------------------------------

                                       5
<Page>
                           IMPORTANT TAX INFORMATION

    This tax information is provided in connection with the consent solicitation
made to holders of the bonds.

    Under the United States federal income tax laws, the consent payment and
future interest payments may be subject to backup withholding. Generally, these
payments will be subject to backup withholding unless the holder (1) is exempt
from backup withholding or (2) furnishes the payer with its correct taxpayer
identification number, which we refer to as the TIN, and certifies that the
number provided is correct and further certifies that the holder is not subject
to backup withholding as a result of a failure to report all interest or
dividend income. Each holder that consents to the proposed amendments, proposed
waivers and authorization and wants to avoid backup withholding, should provide
the trustee, as Edison Mission Holdings' agent, which we refer to as the
requestor, with the holder's correct TIN (or with a certification that the
holder is awaiting a taxpayer identification number) and with a certification
that the holder is not subject to backup withholding by completing Substitute
Form W-9 below.

    Some holders (including, among others, all corporations and some foreign
individuals) are exempt from these backup withholding and reporting
requirements. In general, in order for a foreign individual to qualify as an
exempt recipient, that holder must submit a statement, signed under the
penalties of perjury, attesting to that individual's exempt status. These
statements may be obtained from the solicitation agents or the information
agent. Exempt holders, while not required to file Substitute Form W-9, should
file Substitute Form W-9 and write "exempt" on its face to avoid possible
erroneous backup withholding. Foreign persons not subject to backup withholding
should complete and submit to the trustee a Form W-8 BEN (Certificate of Foreign
Status of Beneficial Owner For U.S. Withholding), and/or other applicable
Form(s) W-8, instead of the Substitute Form W-9. See the enclosed GUIDELINES FOR
REQUEST FOR TAXPAYER IDENTIFICATION NUMBER AND CERTIFICATION ON SUBSTITUTE FORM
W-9 for additional instructions.

    If backup withholding applies, Edison Mission Holdings or the trustee, as
the case may be, will be required to withhold at the applicable rate on the
consent payment and any interest payments made to a holder. Backup withholding
is not an additional tax. Rather, the amount of backup withholding is treated,
like any other withheld amounts, as an advance payment of your tax liability,
and your U.S. federal income tax liability will be reduced by the amount of tax
withheld. If withholding results in an overpayment of taxes, a refund may be
obtained.

PURPOSE OF SUBSTITUTE FORM W-9

    To prevent backup withholding on consent payments and interest payments, you
must notify the trustee of your correct taxpayer identification number by
completing the Substitute Form W-9 below and certifying on Substitute Form W-9
that the taxpayer identification number provided is correct, or that you are
awaiting a taxpayer identification number. In addition, you are required to
certify on Substitute Form W-9 that you are (1) exempt from backup withholding,
or (2) not subject to backup withholding due to prior under-reporting of
interest or dividend income, or (3) the Internal Revenue Service, which we refer
to as the IRS, has notified you that you are no longer subject to backup
withholding.

WHAT NUMBER TO GIVE THE TRUSTEE

    To avoid backup withholding on consent payments and interest payments, you
are required to give the trustee the taxpayer identification number of the
registered holder of the bonds. If the registered holder is an individual, the
taxpayer identification number is the taxpayer's social security number. For
most other entities, the taxpayer identification number is the employer
identification number. If the bonds are in more than one name or are not in the
name of the actual owner, consult the enclosed GUIDELINES FOR REQUEST FOR
TAXPAYER IDENTIFICATION NUMBER AND CERTIFICATION ON SUBSTITUTE FORM W-9 for
additional guidelines on what number to report. If the trustee is provided with
an incorrect taxpayer identification number in connection with such payments,
the holder may be subject to a $50.00 penalty imposed by the IRS.

                                       6
<Page>
                INSTRUCTIONS FOR CONSENTING HOLDERS FORMING PART
            OF THE TERMS AND CONDITIONS OF THE CONSENT SOLICITATION

    1.  DELIVERY OF THIS CONSENT FORM. Subject to the terms and conditions of
the consent solicitation statement, a properly completed and duly executed copy
of this consent form and any other documents required by this consent form must
be received by the trustee at its address set forth on the cover of this consent
form on or before the expiration date. THE DELIVERY OF THIS CONSENT FORM AND ALL
OTHER REQUIRED DOCUMENTS TO THE TRUSTEE IS AT THE ELECTION AND RISK OF THE
HOLDER, AND THE DELIVERY WILL BE DEEMED MADE ONLY WHEN ACTUALLY RECEIVED BY THE
TRUSTEE. SUFFICIENT TIME SHOULD BE ALLOWED TO ASSURE TIMELY DELIVERY. NO CONSENT
FORM SHOULD BE SENT TO ANY PERSON OTHER THAN THE TRUSTEE. THE EXPIRATION DATE IS
5:00 P.M., NEW YORK CITY TIME, ON            , 2001, UNLESS EXTENDED BY EDISON
MISSION HOLDINGS. CONSENT FORMS DELIVERED BY FACSIMILE WILL BE BINDING ONLY IF
THE ORIGINAL CONSENT FORM IS DELIVERED ON OR BEFORE THE EXPIRATION DATE.

    Any beneficial owner or registered holder who wishes to consent to the
effectuation of the sale-leaseback transaction, the proposed amendments, the
proposed waivers and the authorization but who is not the registered holder
thereof must arrange with the registered holder(s) in order (1) to have the
registered holder deliver an executed proxy or other authorization entitling the
beneficial owner or registered holder to execute the consent form or (2) to have
the registered holder deliver the consent form on behalf of the beneficial owner
or registered holder. Beneficial owners whose bonds are registered in someone
else's name (for example, in the name of DTC or a broker-dealer) should ensure
that the consent form is forwarded to the trustee on a timely basis.

    2.  QUESTIONS REGARDING VALIDITY, FORM, LEGALITY, ETC. All questions as to
the validity, form, eligibility (including time of receipt) and acceptance of
consents and revocations of consents will be resolved in the first instance by
Edison Mission Holdings, whose determination will be binding. Edison Mission
Holdings reserves the absolute right to reject any or all consents and
revocations of consents that are not in proper form or the acceptance of which
could, in the opinion of the Edison Mission Holdings' counsel, be unlawful.
Edison Mission Holdings also reserves the right to waive any irregularities or
condition of delivery as to particular consents. Unless waived, any
irregularities in connection with deliveries must be cured within such time as
Edison Mission Holdings determines. None of Edison Mission Holdings, the
information agent, the solicitation agents, the trustee or any other person
shall be under any duty to give notification of any irregularities or waiver,
nor shall any of them incur any liability for failure to give notification.
Deliveries of consent forms or notices of revocation will not be deemed to have
been made until irregularities have been cured or waived. Edison Mission
Holdings' interpretation of the terms and conditions of the consent solicitation
statement (including this consent form and the instructions to this consent
form) will be binding.

    3.  HOLDERS ENTITLED TO CONSENT. Only a registered holder (or its
representative or attorney-in-fact) or another person who has complied with the
procedures set forth in the next sentence may execute or deliver a consent form.
Any beneficial owner or registered holder of bonds who is not the registered
holder of the bonds must arrange with the registered holder(s) to execute and
deliver this consent form on his or her behalf or must obtain an irrevocable
proxy or other authorization from the registered holder(s) and execute and
deliver this consent form together with the other authorization. A consent by a
holder is a continuing consent notwithstanding that registered ownership of a
bond has been transferred subsequent to the record date. A person who becomes a
holder with respect to the bonds after the record date may consent with respect
to the bonds before the expiration date by delivering a consent form, provided
that a consent form has not been given with respect to those bonds.

    4.  SIGNATURES ON THIS CONSENT FORM; PROXIES. If this consent form is signed
by the registered holder(s) of the bonds with respect to which this consent is
given, or if a proxy delivered with this consent form is signed by the
registered holder(s) of the bonds with respect to which this consent is

                                       7
<Page>
given, the signature(s) of the registered holder(s) must correspond with the
name(s) as contained on the register on the record date, without alteration,
enlargement or any change whatsoever.

    The ownership of bonds held through DTC by DTC participants shall be
established by a DTC security position listing provided by DTC as of the record
date. DTC, as a registered holder, has executed an omnibus proxy in favor of DTC
participants which will authorize each DTC participant to deliver a consent with
respect to the bonds held by the DTC participant in DTC's name as of the record
date.

    If any of the bonds with respect to which this consent is given were held of
record on the record date by two or more joint owners, all these owners must
sign this consent form, or any proxy delivered with this consent form if this
consent form is being signed by a holder other than the registered holder(s). If
any bonds with respect to which this consent is given have different registered
holders, it will be necessary to complete, sign and submit as many separate
copies of this consent form and any necessary accompanying documents as there
are different registered holders.

    If this consent form or any proxies are signed by trustees, executors,
administrators, guardians, attorneys-in-fact, officers or corporations or others
acting in a fiduciary or representative capacity, these persons should indicate
this fact when signing, and, unless waived by Edison Mission Holdings, evidence
satisfactory to Edison Mission Holdings of their authority to so act must be
submitted with this consent form.

    5.  REVOCATION OF CONSENTS. Before the consent date, holders of outstanding
bonds may revoke their consent in part or in whole, but in multiples of $1,000.
To revoke their consent, holders must, before that time, deliver to the trustee
at the address set forth on the cover page of this consent form a written
revocation of the consent, containing its name, the serial numbers of the
outstanding bonds to which the revocation relates, the principal amount of the
outstanding bonds to which the revocation relates and its signature. Holders'
consents cannot be revoked after the consent date.

    If a revocation is signed by a trustee, partner, executor, administrator,
guardian, attorney-in-fact, officer of a corporation or other person acting in a
fiduciary or representative capacity, that person must so indicate when signing
and must submit with the revocation appropriate evidence of authority to execute
the revocation. A revocation of consent will only be effective as to outstanding
bonds listed on the revocation. Only a holder as reflected in the register of
the trustee is entitled to revoke a consent previously given. A beneficial owner
of outstanding bonds who is not the holder of the bonds must arrange with the
registered holder to execute and deliver to the trustee on the beneficial
owner's behalf, or to the beneficial owner for forwarding to the trustee by the
beneficial owner, either a revocation of any consent already given with respect
to the bonds or the duly executed proxy from the registered holder authorizing
the beneficial owner to act on behalf of the registered holder as to the
consent. A revocation of a consent may only be rescinded by the execution and
delivery of a new consent, in accordance with the procedures in the consent
solicitation statement described by the holder who delivered the revocation.

    6.  WAIVER OF CONDITIONS. Edison Mission Holdings reserves the absolute
right to amend, waive or modify specified conditions of the consent
solicitation, subject (if required) to the agreement of the trustee.

                                       8
<Page>
    7.  REQUESTS FOR ASSISTANCE AND ADDITIONAL COPIES. Questions or requests for
assistance in completing and delivering this consent form or for additional
copies of the consent solicitation statement or this consent form may be
directed to the solicitation agents or the information agent at the addresses
and telephone numbers below:

                               Information Agent:
                             D. F. King & Co., Inc.
                                77 Water Street
                            New York, New York 10005
                               Banks and Brokers:
                         (212) 269-5550 (Call Collect)
                                  All Others:
                           (800) 290-6427 (Toll Free)

                              Solicitation Agents:

<Table>
                                        
 Credit Suisse First Boston Corporation              Lehman Brothers Inc.
          Eleven Madison Avenue                    3 World Financial Center
      New York, New York 10010-3629                New York, New York 10285
      (212) 538-8474 (Call Collect)              (212) 526-7581 (Call Collect)
       (800) 820-1653 (Toll Free)                 (800) 438-3242 (Toll Free)
  Attention: Liability Management Group       Attention: Scott Macklin, Liability
                                                       Management Group
</Table>

    8.  SUBSTITUTE FORM W-9. Each holder who wishes to consent to the proposed
amendments, proposed waivers and authorization should provide the trustee with a
correct Taxpayer Identification Number (TIN) on Substitute Form W-9, a copy of
which is included as Exhibit A to this consent form. Additional copies of
Substitute Form W-9 may be obtained upon request from the solicitation agents or
the information agent at the addresses or by calling the telephone numbers
indicated above. Failure to provide the information on the form may subject the
holder to federal income tax backup withholding with respect to the consent
payments and future interest payments.
--------------------------------------------------------------------------------

      NOTE: FAILURE TO COMPLETE AND RETURN THIS FORM MAY RESULT IN BACKUP
        WITHHOLDING ON ANY CASH PAYMENTS MADE TO YOU WITH RESPECT TO THE
        CONSENT PAYMENTS AND FUTURE INTEREST PAYMENTS. PLEASE REVIEW THE
    ENCLOSED GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION NUMBER
               ON SUBSTITUTE FORM W-9 FOR ADDITIONAL INFORMATION.
          YOU MUST COMPLETE THE FOLLOWING CERTIFICATION IF YOU CHECKED
                   THE BOX IN PART 3 OF SUBSTITUTE FORM W-9.

             CERTIFICATE OF AWAITING TAXPAYER IDENTIFICATION NUMBER

    I certify under penalties of perjury that a taxpayer identification number
has not been issued to me, and either (a) I have mailed or delivered an
application to receive a taxpayer identification number to the appropriate
Internal Revenue Service Center or Social Security Administration Office or
(b) I intend to mail or deliver an application in the near future. I understand
that until I provide a taxpayer identification number, all reportable payments
made to me will be subject to backup withholding, but will be refunded if I
provide a certified taxpayer identification number within 60 days.

Signature: _____________________________________________________________________

Dated: _________________________________________________________________________

    THE IRS DOES NOT REQUIRE YOUR CONSENT TO ANY PROVISION OF THIS DOCUMENT
OTHER THAN THE CERTIFICATIONS REQUIRED TO AVOID BACKUP WITHHOLDING.

--------------------------------------------------------------------------------

                                       9
<Page>
               GUIDELINES FOR REQUEST FOR TAXPAYER IDENTIFICATION
                NUMBER AND CERTIFICATION ON SUBSTITUTE FORM W-9
                                     PAGE 1

WHAT NAME AND NUMBER TO GIVE THE REQUESTER

    NAME

    If you are an individual, you must generally enter the name shown on your
Social Security card. However, if you have changed your last name, for instance,
due to marriage, without informing the Social Security Administration of the
name change, enter your first name, the last name shown on your Social Security
card, and your new last name. If the account is in joint names, list first and
then circle the name of the person or entity whose number you enter in Part I of
the form.

    SOLE PROPRIETOR--You must enter your individual name as shown on your Social
Security card. You may enter your business, trade or "doing business as" name on
the business name line.

    LIMITED LIABILITY COMPANY (LLC)--If you are a single-member LLC (including a
foreign LLC with a domestic owner) that is disregarded as an entity separate
from its owner under Treasury regulations ss. 301.7701-3, enter the owner's
name. Enter the LLC's name on the business name line. A disregarded domestic
entity that has a foreign owner must use the appropriate Form W-8.

    OTHER ENTITIES--Enter the business name as shown on required federal income
tax documents. This name should match the name shown on the charter or other
legal document creating the entity. You may enter any business, trade or "doing
business as" name on the business name line.

    TAXPAYER IDENTIFICATION NUMBER (TIN)

    You must enter your taxpayer identification number in the appropriate box.
If you are a resident alien and you do not have and are not eligible to get a
Social Security number, your taxpayer identification number is your IRS
individual taxpayer identification number, which we refer to as the ITIN. Enter
it in the Social Security number box. If you do not have an individual taxpayer
identification number, see HOW TO GET A TIN BELOW. If you are a sole proprietor
and you have an employer identification number, you may enter either your Social
Security number or employer identification number. However, using your employer
identification number may result in unnecessary notices to the requester, and
the IRS prefers that you use your Social Security number. If you are an LLC that
is disregarded as an entity separate from its owner under Treasury regulations
ss. 301.7701-3, and are owned by an individual, enter the owner's Social
Security number. If the owner of a disregarded LLC is a corporation,
partnership, etc., enter the owner's employer identification number. See the
chart below for further clarification of name and TIN combinations.

    Social Security numbers, which we refer to as SSN's, have nine digits
separated by two hyphens: i.e. 000-00-0000. Employer identification numbers,
which we refer to as EIN's, have nine digits separated by only one hyphen: i.e.
00-0000000.

    The table below will help determine the number to give the requester.

                                       10
<Page>
               GUIDELINES FOR REQUEST FOR TAXPAYER IDENTIFICATION

                NUMBER AND CERTIFICATION ON SUBSTITUTE FORM W-9

                                     PAGE 2

<Table>
<Caption>
--------------------------------------------------
                       
FOR THIS TYPE OF
ACCOUNT:                  GIVE NAME AND SSN OF:
--------------------------------------------------

1. Individual             The individual

2. Two or more            The actual owner of the
   individuals (joint     account or, if combined
   account)               funds, the first
                          individual on the
                          account(1)

3. Custodian account of   The minor(2)
   a minor (Uniform Gift
   to Minors Act)

4. a. The usual           The grantor-trustee(1)
      revocable savings
      trust (grantor is
      also trustee)

  b. The so-called trust  The actual owner(1)
     account that is not
     a legal or valid
     trust under state
     law

5. Sole proprietorship    The owner(3)

6. A valid trust, estate  Legal entity(4)
   or pension trust

<Caption>
--------------------------------------------------
FOR THIS TYPE OF ACCOUNT: GIVE NAME AND SSN OF:
--------------------------------------------------
                       

 7. Corporation           The corporation

 8. Association, club,    The organization
    religious,
    charitable,
    educational or
   other tax-exempt
    organization

 9. Partnership           The partnership

10. A broker or           The broker or nominee
    registered nominee

11. Account with the      The public entity
    Department 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. 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 the minor's Social Security number.

(3) 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.

(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 more than one name is listed, the number will
       be considered to be that of the first name listed.

    HOW TO GET A TIN

    If you do not have a taxpayer identification number, apply for one
immediately. To apply for a Social Security number, get FORM SS-5, APPLICATION
FOR A SOCIAL SECURITY NUMBER CARD, from your local Social Security
Administration office. Get FORM W-7 to apply for an individual taxpayer
identification number or FORM SS-4, APPLICATION FOR EMPLOYER IDENTIFICATION
NUMBER, to apply for an employer identification number. You can get Forms W-7
and SS-4 from the IRS.

    If you do not have a taxpayer identification number, write "Applied For" in
the space for the taxpayer identification number, sign and date the form, and
give it to the requester. For interest and dividend payments and some payments
made with respect to readily tradable instruments, you will generally have 60
days to get a taxpayer identification number and give it to the requester before
you are subject to backup withholding. Other payments are subject to backup
withholding without regard to the 60-day rule, until you provide your taxpayer
identification number.

                                       11
<Page>
               GUIDELINES FOR REQUEST FOR TAXPAYER IDENTIFICATION
                NUMBER AND CERTIFICATION ON SUBSTITUTE FORM W-9
                                     PAGE 3

    NOTE: WRITING "APPLIED FOR" MEANS THAT YOU HAVE ALREADY APPLIED FOR A
TAXPAYER IDENTIFICATION NUMBER OR THAT YOU INTEND TO APPLY FOR ONE SOON.

EXEMPTION FROM BACKUP WITHHOLDING

    PAYEES EXEMPT FROM BACKUP WITHHOLDING

    Individuals (including sole proprietors) are NOT exempt from backup
withholding.

    For interest and dividends, the following payees are exempt from backup
withholding:

    - A corporation.

    - A financial institution.

    - An organization exempt from tax under section 501(a) of the Internal
      Revenue Code of 1986, as amended (the "Code"), an individual retirement
      account (IRA), or a custodial account under section 403(b)(7) of the Code
      if the account satisfies the requirements of section 401(f)(2) of the
      Code.

    - The United States or any of its agencies or instrumentalities.

    - A state, the District of Columbia, a possession of the United States, or
      any of their political subdivisions or instrumentalities.

    - A foreign government or any of its political subdivisions, agencies or
      instrumentalities.

    - An international organization or any of its agencies or instrumentalities.

    - A dealer in securities or commodities required to register in the United
      States, the District of Columbia or a possession of the United States.

    - A real estate investment trust.

    - A common trust fund operated by a bank under section 584(a) of the Code.

    - An entity registered at all times during the tax year under the Investment
      Company Act of 1940.

    - A foreign central bank of issue.

    - A middleman known in the investment community as a nominee or who is
      listed in the most recent publication of the American Society of Corporate
      Secretaries, Inc., Nominee List.

    - A trust exempt from tax under section 664 of the Code or described in
      section 4947 of the Code.

    PAYMENTS EXEMPT FROM BACKUP WITHHOLDING

    Dividends and patronage dividends that are generally exempt from backup
withholding include:

    - Payments to nonresident aliens subject to withholding under section 1441
      of the Code.

    - 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.

    - Payments made by an ESOP pursuant to section 404(k) of the Code.

    Interest payments that are generally exempt from backup withholding include:

    - Payments of interest on obligations issued by individuals. Note, however,
      that such a payment 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 or you have provided an incorrect taxpayer identification number to
      the payer.

    - Payments of tax-exempt interest (including exempt-interest dividends under
      section 852 of the Code).

    - Payments described in section 6049(b)(5) of the Code to nonresident
      aliens.

    - Payments on tax-free covenant bonds under section 1451 of the Code.

    - Payments made by certain foreign organizations.

    Payments that are not subject to information reporting are also not subject
to backup withholding. For details, see sections 6041, 6041A, 6042, 6044, 6045,
6049, 6050A and 6050N of the Code, and their regulations.

    IF YOU ARE EXEMPT FROM BACKUP WITHHOLDING, YOU SHOULD STILL COMPLETE AND
FILE SUBSTITUTE FORM W-9 TO AVOID POSSIBLE ERRONEOUS BACKUP WITHHOLDING. ENTER
YOUR CORRECT TAXPAYER IDENTIFICATION NUMBER IN PART I, WRITE "EXEMPT" IN
PART II, AND SIGN AND DATE THE FORM AND RETURN IT TO THE REQUESTER.

    If you are a nonresident alien or a foreign entity not subject to backup
withholding, give the requester a completed FORM W-8, CERTIFICATE OF FOREIGN
STATUS.

    PRIVACY ACT NOTICE.--Section 6109 of the Code requires you to give your
correct taxpayer identification number to persons who must file information
returns with the IRS to report 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

                                       12
<Page>
and to cities, states, and the District of Columbia to carry out their tax laws.
You must provide your taxpayer identification number whether or not you are
required to file a tax return. Payers must generally withhold 31% of taxable
interest, dividends 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) FAILURE TO FURNISH TAXPAYER IDENTIFICATION NUMBER.--If you fail to
furnish your correct taxpayer identification number to a requester, you are
subject to a penalty of $50.00 for each failure unless your failure is due to
reasonable cause and not to willful neglect.

    (2) CIVIL PENALTY FOR FALSE INFORMATION WITH RESPECT TO WITHHOLDING.--If you
make a false statement with no reasonable basis which results in no backup
withholding, you are subject to a $500.00 penalty.

    (3) 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.

                                       13