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                                                 UNITED STATES
                                      SECURITIES AND EXCHANGE COMMISSION
                                            Washington, D.C. 20549


                                                   FORM 8-K


                                                CURRENT REPORT

                    Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934


                      Date of Report (Date of earliest event reported): December 12, 2006



                                             EDISON INTERNATIONAL
                            (Exact name of registrant as specified in its charter)



             CALIFORNIA                    001-9936                        95-4137452
    (State or other jurisdiction          (Commission                   (I.R.S. Employer
          of incorporation)              File Number)                  Identification No.)


                                           2244 Walnut Grove Avenue
                                                (P.O. Box 800)
                                          Rosemead, California 91770
                         (Address of principal executive offices, including zip code)

                                                 626-302-2222
                             (Registrant's telephone number, including area code)

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Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing
obligation of the registrant under any of the following provisions:
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[  ]  Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

[  ]  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

[  ]  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

[  ]  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
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          This current report and its exhibits include forward-looking statements. Edison International has
based these forward-looking statements on its current expectations and projections about future events based
upon knowledge of facts as of the date of this current report and its assumptions about future events. These
forward-looking statements are subject to various risks and uncertainties that may be outside Edison Edison
International's control. Edison International has no obligation to publicly update or revise any
forward-looking statements, whether as a result of new information, future events or otherwise. This current
report should be read with Edison International's Annual Report on Form 10-K for the year ended December 31,
2005 and subsequent Quarterly Reports on Form 10-Q.


                                           Section 8 - Other Events


Item 8.01 Other Events.

On December 12, 2006, Edison International's indirect, wholly-owned subsidiary, Midwest Generation, LLC,
announced that it had reached an agreement in principle with the Illinois Environmental Protection Agency to
reduce mercury, nitrogen oxide and sulfur dioxide emissions at Midwest Generation's Illinois coal-fired power
plants.

A copy of the press release announcing the agreement in principle is attached as Exhibit 99.1 to this Current
Report on Form 8-K.

Implementation of the agreement will require further regulatory proceedings in order to become effective, and
once implemented the agreement will provide reasonable certainty of the timing and amount of emissions
reductions which will be required of Midwest Generation's Illinois plants for these pollutants through 2018.
No assurance can be given that all required regulatory approvals will be received and if not received Midwest
Generation will remain subject to existing and future requirements as to emissions of these pollutants.

If the agreement is implemented as contemplated, Midwest Generation will be required to achieve specified
emissions reductions through a combination of environmental retrofits or unit shutdowns. The agreement
contemplates three phases with each phase relating to one of the pollutants involved. Capital expenditures
will be required for each phase.

The first phase involves installing by 2009 activated carbon injection technology for the removal of mercury,
a technology which Midwest Generation has been testing at some of its plants. Capital expenditures relating
to these controls are currently estimated to be approximately $60 million.

The second phase requires the installation by the end of 2011 of additional controls to remove nitrogen oxide
on several units which do not currently have these controls. Capital expenditures for these controls are
currently estimated to be approximately $450 million.

Thereafter, during the third phase of the plan, the focus will be on the reduction of sulfur dioxide
emissions.  Midwest Generation will be required for several units at its six plants in Illinois either to
place controls on these units between 2012 and 2018 for this purpose or to remove them from service.  Midwest
Generation will consider many factors in making this choice including, among others, an assessment of the
cost and performance of environmental technologies and equipment, the remaining estimated useful life of each
affected unit and the market outlook for the prices of various commodities including electrical energy and
capacity, coal and natural gas.  In view of the many factors involved,



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  Midwest Generation has not at this time determined what actions it may take at each affected unit to provide
for optimal compliance with the agreement during its third phase.  At this time, however, additional capital
expenditures during the third phase of the plan are currently estimated as being in the range of
approximately $2.2 billion to $2.9 billion depending on the number of units on which controls are placed
versus the number which are removed from service.  For a number of the reasons described above, actual
capital expenditures may vary substantially from the above estimates.

                                 Section 9 - Financial Statements and Exhibits


Item 9.01 Financial Statements and Exhibits.

(d)          Exhibits


99.1         Press release of Midwest Generation, LLC dated December 12, 2006.



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                                                     SIGNATURE

        Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused
this report to be signed on its behalf by the undersigned thereunto duly authorized.

                                              Edison International


                                              /s/ Linda G. Sullivan                                                                                                                            Date:        December 12, 2006                       /s/ Linda G. Sullivan
                Date:  December 12, 2006      ------------------------------------------
                                                  LINDA G. SULLIVAN
                                                  Vice President and Controller







                                                   EXHIBIT INDEX

Exhibit No.         Description

99.1                Midwest Generation, LLC's Press Release dated December 12, 2006.