1 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 COMERICA CAPITAL TRUST I (Exact name of registrant as specified in its charter) Delaware 38-6786257 (State or other jurisdiction of (I.R.S. Employer incorporation or organization) Identification No.) 500 Woodward Avenue, Detroit, Michigan 48226 (Address of principal executive offices) (Zip Code) If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective upon filing pursuant to General Instruction A.(c), please 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), please check the following box. [ ] Securities Act registration statement file numbers to which this form relates: 333-63090 Securities to be registered pursuant to Section 12(b) of the Act: Title of each class Name of each exchange on which each to be so registered: class is to be registered: 7.60% Preferred Securities New York Stock Exchange of Comerica Capital Trust I Securities to be registered pursuant to Section 12(g) of the Act: None 2 Item 1. Description of Registrant's Securities to be Registered. This registration statement relates to 7.60% Preferred Securities ("Preferred Securities") in denominations of $25 per security, aggregate liquidation amount of $250,000,000, of Comerica Capital Trust I (the "Registrant"), a statutory business trust created under the laws of Delaware. Each Preferred Security represents an undivided beneficial ownership interest in the assets of Comerica Capital Trust I and are guaranteed by Comerica Incorporated, a Delaware corporation, as Guarantor, to the extent set forth in the Guarantee Agreement executed by Comerica Incorporated and Chase Manhattan Trust Company, National Association, as Guarantee Trustee, a form of which is incorporated herein by reference to Exhibit 4(b) to the Registration Statement on Form S-3 (the "Registration Statement") of Comerica Incorporated, Comerica Capital Trust I and Comerica Capital Trust II, filed with the Securities and Exchange Commission (the "Commission") on June 15, 2001. The particular terms of the Preferred Securities and the Guarantee are described in the prospectus dated July 20, 2001, which forms a part of the Registration Statement (the "Prospectus"), as such Prospectus is amended by the Prospectus Supplement dated July 25, 2001. The Prospectus and the form of Guarantee are incorporated by reference herein as set forth in Item 2 below. Such Prospectus as may hereafter be amended or supplemented and filed as part of an amendment to the Registration Statement or otherwise pursuant to Rule 424(b) under the Securities Act of 1933, as amended, is hereby incorporated by reference. Item 2. Exhibits 1. Prospectus pertaining to the offer and sale of the Preferred Securities, which forms a part of, and is incorporated by reference to, the Registration Statement. 2. Form of Indenture relating to the Junior Subordinated Debentures (incorporated by reference to Exhibit 4(a) to the Registration Statement; File No. 333-63090). 3. Form of Guarantee Agreement (incorporated by reference to Exhibit 4(b) to the Registration Statement). 4. Form of Junior Subordinated Debenture (incorporated by reference to Exhibit 4(c) to the Registration Statement). 5. Certificate of Trust of Comerica Capital Trust I (incorporated by reference to Exhibit 4(d) to the Registration Statement). 6. Declaration of Trust of Comerica Capital Trust I (incorporated by reference to Exhibit 4(f) to the Registration Statement). 7. Form of Amended and Restated Declaration of Trust (incorporated by reference to Exhibit 4(h) to the Registration Statement). 8. Form of Preferred Security (incorporated by reference to Exhibit 4(i) to the Registration Statement). 3 SIGNATURE Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the Registrant and Comerica Incorporated have duly caused this registration statement to be signed on their behalf by the undersigned, thereto duly authorized. COMERICA CAPITAL TRUST I By: /s/ Ronald D. Marks ------------------- Name: RONALD D. MARKS Title: Administrative Trustee COMERICA INCORPORATED By: /s/ Mark W.Yonkman ------------------ Name: MARK W. YONKMAN Title: First Vice President, Assistant Secretary and General Counsel - Corporate Finance Dated: July 27, 2001