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) AUGUST 3, 2005.

                         CLEAN DIESEL TECHNOLOGIES, INC.
               (Exact Name of Registrant as Specified in Charter)


DELAWARE                      000-27432                     06-1393453
(State or other              (Commission                  (IRS Employer
Jurisdiction of              File Number)               Identification No.)
Incorporation)

                         SUITE 702, 3000 ATLANTIC STREET
                                STAMFORD CT 06901
                                 (203) 327-7050
          (Address and Telephone Number of Principal Executive Offices)

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 (See General Instruction A.2. below):

[_]  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  CFR240.14d-2(b))

[_]  Pre-commencement  communications pursuant to Rule 13e-4c under the Exchange
     Act  (17  CFR240.13e-4  (  c))



                SECTION 5 - - CORPORATE GOVERNANCE AND MANAGEMENT

ITEM 5.02 DEPARTURE OF DIRECTORS OR PRINCIPAL OFFICERS; ELECTION OF DIRECTORS;
APPOINTMENT OF PRINCIPAL OFFICERS.

     On August 8, 2005 the Registrant issued the press release attached to this
Report as Exhibit 99.1 to report the election of Walter G. Copan, Ph.D, as Vice
President and Chief Technology Officer of the Registrant at a meeting of the
Board of Directors of the Registrant on August 3, 2005.

     Dr. Copan, age 51, had been, prior to his appointment by the Registrant,
the Principal Licensing Executive, Technology Transfer, of the National
Renewable Energy Laboratory of the U.S. Department of Energy since June 2003.
Before his service with the Department of Energy, Dr. Copan held various
research and management positions with The Lubrizol Corporation, a specialty
chemical company, his employer since 1975. His last position with Lubrizol was
that of Managing Director, Technology Transfer and Licensing. Dr. Copan has a
Ph.D in Physical Chemistry from Case Western Reserve University and B.S/B.A.
degrees in Chemistry and Music from Case Western Reserve University.

     Pursuant to Dr. Copan's employment agreement with the Registrant, attached
to this Report as Exhibit 99.2, his term of employment is indefinite; his base
salary is $200,000 per year; his first year bonus is guaranteed at $30,000,
subject to continued employment, with an additional contingent bonus amount of
not more than $30,000, and such bonus participation in later years as may be
agreed by the Directors; he was granted a stock option on August 3, 2005 for a
period of 10 years vesting 25% per year over four years to acquire 100,000
shares of the Registrant's common stock at the exercise price of $1.40 per
share; he is entitled to participate in the Registrant's benefit and welfare
plans and programs as are enjoyed by the Registrant's other U.S. based officers;
and he has a relocation and moving allowance. Further details of Dr. Copan's
employment agreement may be found in Exhibit 99.2 to this Report.


                 SECTION 9 - - FINANCIAL STATEMENTS AND EXHIBITS

     Item 9.01 Financial Statements and Exhibits.

(c)  Exhibits
                    99.1  Press Release of August 8, 2005 issued by Clean Diesel
               Technologies,  Inc.
                    99.2  Employment Agreement as of June 14, 2005 between Clean
               Diesel  Technologies,  Inc.  And  Dr.  Walter  G.  Copan



                                   SIGNATURES


     Pursuant to the requirements of the Securities and Exchange Act of 1934,
the Registrant has duly caused this Report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                         CLEAN DIESEL TECHNOLOGIES, INC.


Date: August 8, 2005                     By  /s/ C. W. Grinnell
                                             Charles W. Grinnell
                                             Vice President & Secretary