WASHINGTON MUTUAL INVESTORS FUND AMENDMENT OF AMENDED SHAREHOLDER SERVICES AGREEMENT

WASHINGTON MUTUAL INVESTORS FUND

AMENDMENT OF AMENDED SHAREHOLDER SERVICES AGREEMENT

This Amendment to the Amended Shareholder Services Agreement (the "Agreement") by and between American Funds Service Company (hereinafter, "AFS") and Washington Mutual Investors Fund (hereinafter, the "Fund") is dated as of the 1st day of November, 2006.

WHEREAS, AFS and the Fund entered into the Agreement with regard to certain shareholder services to be performed by AFS; and

WHEREAS, AFS and the Fund desire to amend said Agreement in the manner hereinafter set forth;

NOW THEREFORE, pursuant to Section 9 of the Agreement, AFS and the Fund hereby amend Section 6 of the Agreement to read as follows:

AFS will provide to the participating investment companies the shareholder services referred to herein in return for the following fees:

Annual account maintenance fee (paid monthly):

$0.91 per month for each open account on AFS’ books or in Level 0, 2 or 4

Networking ($10.92 per year).

$0.06 per month for each open account maintained in Street Name or

Level 1 or 3 Networking ($0.72 per year).

No annual fee will be charged for a participant account underlying a 401(k)

or other defined contribution plan where the plan maintains a single

account on AFS’ books and responds to all participant inquiries.

Transaction fees:

$1.55 per non-automated transaction

$0.20 per automated transaction

For this purpose, “transactions” shall include all types of transactions included in an “activity index” as reported to the Review and Advisory Committee at least annually.  AFS will xxxx the Fund monthly, on or shortly after the first of each calendar month, and the Fund will pay AFS within five business days of such billing.

Any revision of the schedule of charges set forth herein shall require the affirmative vote of a majority of the members of the board of directors of the Fund.

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IN WITNESS THEREOF, AFS and the Fund have caused this Amendment to be executed by their duly authorized officers effective as of the date first written above.

WASHINGTON MUTUAL AMERICAN FUNDS

INVESTORS FUND SERVICE COMPANY

BY:                                                                           BY:                                                                

Name:                                            Name:                                                      

Title:                      Secretary                                 Title:                      ______________________________

Date:                       Date: