Exhibit (a)(i)

**DWS INSTITUTIONAL FUNDS**

 

Amended and Restated Establishment and Designation of Series and 

Classes of Shares of Beneficial Interest, With $0.01 Par Value

 

WHEREAS, the Trustees of DWS Institutional Funds (the “Trust”), acting pursuant to the Trust’s Amended and Restated Declaration of Trust (the “Declaration”), dated June 2, 2008, as amended, had previously established and designated one or more series of shares of beneficial interest in the Trust (each, a “Series” consisting of            “Shares”) pursuant to one or more designations of series (the “Prior Series Designations”) and had previously established and designated one or more classes of Shares (each, a “Class”) for some or all of the Series pursuant to one or more designations of classes (the “Prior Class Designations,” such Prior Series Designations and Prior Class Designations referred to herein collectively as the “Prior            Designations”);

 

WHEREAS, the Trustees of the Trust, effective October 10, 2008, amended and restated the Trust’s Prior Designations, the terms of the amended and restated designation to supersede any terms set forth in the Prior Designations;

 

WHEREAS, pursuant to Article V, Section 5.11 of the Declaration, the Trustees, at a meeting held on January 22, 2009, authorized the establishment of the “Class A” and “Class S” Shares of DWS U.S. Bond Index Fund, a Series of the Trust, to be effective on February 17, 2009.

NOW THEREFORE, pursuant to Articles V and VIII, Sections 5.11 and 8.3, respectively, the Trustees of the Trust, effective on February 17, 2009, hereby amend and restate the Trust’s Prior Designations, the terms of which to supersede any terms set forth in the Prior Designations.

1.        The following Series of Shares and Classes thereof are established and designated, the Shares, with $0.01 par value, of such Series and Classes to be subject to the terms of, and entitled to all the rights and preferences accorded to Shares of a Series, and, if applicable, a Class under, the Declaration and this amended and            restated designation:

 

|   | Cash Management Fund | Institutional Shares |
|--------|----------------------|----------------------|

|   | Prime Shares |
|--------|--------------|

 

|   | Cash Reserves Fund Institutional | Institutional Class |
|--------|----------------------------------|---------------------|

 

|   | Daily Assets Fund Institutional | Institutional Class |
|--------|---------------------------------|---------------------|

 

|   | DWS Commodity Securities Fund | Class A |
|--------|-------------------------------|---------|

|   | Class B |
|--------|---------|

|   | Class C |
|--------|---------|

|   | Class S |
|--------|---------|

|   | Institutional Class |
|--------|---------------------|

 

|   | DWS EAFE® Equity Index Fund | Institutional Class |
|--------|---------------------------------|---------------------|

 

|   | DWS Equity 500 Index Fund | Class S |
|--------|---------------------------|---------|

Institutional Class

 

|   | DWS Inflation Protected Plus Fund | Class A |
|--------|-----------------------------------|---------|

|   | Class B |
|--------|---------|

|   | Class C |
|--------|---------|

|   | Class S |
|--------|---------|

|   | Institutional Class |
|--------|---------------------|

 

|   | DWS U.S. Bond Index Fund | Class A |
|--------|--------------------------|---------|

|   | Class S |
|--------|---------|

|   | Institutional Class |
|--------|---------------------|

2.        For Shares of a Class of a Series, the relative rights and preferences of such Class shall be as determined by the Trustees of the Trust from time to time in accordance with the Declaration and set forth in the Trust’s Multi-Distribution System Plan adopted pursuant to Rule 18f-3 under the Investment Company Act of 1940, as            amended, as such Plan may be amended from time to time, or as otherwise required by applicable law. The Shares of a Class of a Series shall have such other terms, features and qualifications as may be determined by the Trustees of the Trust from time to time in accordance with the Declaration and set forth in the current prospectus and statement of additional information of the Series relating to such Class, contained in the Trust’s registration statement under the Securities            Act of 1933, as amended, as such prospectus or statement of additional information may be further supplemented from time to time.

3.        The designation of the Series and Classes hereby shall not impair the power of the Trustees from time to time to designate additional Series and Classes of Shares of the Trust.

 

[REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]

**IN WITNESS WHEREOF**, the undersigned, being a majority of the Trustees of the Trust, have executed this instrument as of this 22nd day of January 2009.

 

 

|  

 

/s/John W. Ballantine  |   | /s/Henry P. Becton, Jr.         |
|----------------------------------------|--------|---------------------------------|
| John W. Ballantine, Trustee            |   | Henry P. Becton, Jr., Trustee   |
|  

 

/s/Dawn-Marie Driscoll |   | /s/Keith R. Fox                 |
| Dawn-Marie Driscoll, Trustee           |   | Keith R. Fox, Trustee           |
|  

 

/s/Paul K. Freeman     |   | /s/Kenneth C. Froewiss          |
| Paul K. Freeman, Trustee               |   | Kenneth C. Froewiss, Trustee    |
|  

 

/s/Richard J. Herring  |   | /s/William McClayton            |
| Richard J. Herring, Trustee            |   | William McClayton, Trustee      |
|  

 

/s/Rebecca W. Rimel    |   | /s/Axel Schwarzer               |
| Rebecca W. Rimel, Trustee              |   | Axel Schwarzer, Trustee         |
|  

/s/William N. Searcy, Jr.      |   | /s/Jean Gleason Stromberg       |
| William N. Searcy, Jr., Trustee        |   | Jean Gleason Stromberg, Trustee |
|  

 

/s/Robert H. Wadsworth |   |                            |
| Robert H. Wadsworth, Trustee           |   |                            |