UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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

FORM 8-A

FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES

PURSUANT TO SECTION 12(b) or (g) OF THE

SECURITIES EXCHANGE ACT OF 1934

iShares Trust

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

(Exact name of registrant as specified in its charter)

State of Delaware --------------------------------------------- (State of incorporation or organization)	See Below ----------------------- (I.R.S. Employer Identification No.)
c/o Investors Bank and Trust Company 200 Clarendon Street, Boston, MA --------------------------------------------- (Address of principal executive offices)	02116 ----------------------- (Zip Code)

Securities to be registered pursuant to Section 12(b) of the Act:

Title of Each Class to be Registered	Exchange	I.R.S. Employer Identification Number
iShares KLD 400 Social Index Fund	American Stock Exchange	30-0382757

If this form relates to the registration of a class of securities pursuant

to Section 12(b) of the Exchange Act and is effective pursuant to General

Instruction A.(c), check the following box. [X]

If this form relates to the registration of a class of securities pursuant

to Section 12(g) of the Exchange Act and is effective pursuant to General

Instruction A.(d), check the following box.                                          [  ]

Securities Act registration statement file number to which this form

relates:333-92935

Securities to be registered pursuant to Section 12(g) of the Exchange Act: None.

INFORMATION REQUIRED IN REGISTRATION STATEMENT

Item 1. Description of Registrant's Securities to be Registered:

Reference is made to Post-Effective Amendment No. 62 to the Registrant’s Registration Statement on Form N-1A filed with the Securities and Exchange Commission (“SEC”) on November 13, 2006, pursuant to paragraph (b) of Rule 485 under the Securities Act of 1933 (Securities Act file number 333-92935 and Investment Company Act file number 811-09729). Any form of supplement to the Registration Statement that is subsequently filed is hereby also incorporated by reference herein.

Item 2. Exhibits

1.Registrant's Agreement and Declaration of Trust, incorporated herein by reference to Exhibit (a) to the Registrant's Post-Effective Amendment No. 53 to the registration statement on Form N-1A dated September 18, 2006 (File Nos. 333-92935; 811-09729).

2.Amended and Restated By-Laws, incorporated herein by reference to Exhibit (b) to the Registrant’s Post-Effective Amendment No. 38 to the registration statement on Form N-1A dated June 29, 2005 (File Nos. 333-92935; 811-09729).

3.Form of Global Certificate for the Registrant's Securities being registered hereunder, incorporated herein by reference to Exhibit 3 to the Registrant's registration of securities pursuant to Section 12(b) on Form 8-A, dated May 18, 2000 (Securities Exchange Act file number 001-15897), which is incorporated herein by reference.

SIGNATURE

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the Registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized.

        Date: November 16, 2006       iSHARES TRUST                                                                   By:  /s/ Peter W. Kronberg --------------------------- Peter W. Kronberg Assistant Secretary