SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                    FORM 8-A


                FOR REGISTRATION OF CERTAIN CLASSES OF SECURITES
                     PURSUANT TO SECTION 12(B) OR (G) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


                        EATON VANCE INSURED MASSACHUSETTS
                              MUNICIPAL BOND FUND I
                   ------------------------------------------
             (Exact Name of Registrant as Specified in its Charter)


                 Massachusetts                              Pending
        -------------------------------          -----------------------------
   (State of Incorporation or Organization)     (I.R.S. Employer Identification
                                                              No.)

           The Eaton Vance Building
               255 State Street
              Boston, Massachusetts                          02109
       --------------------------------               -------------------
    (Address of Principal Executive Office)                (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  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:
333-100441

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

          Title of Each Class                Name of Each Exchange On Which
          To Be So Registered                Each Class Is To Be Registered
          -------------------                ------------------------------

 Common Shares of Beneficial Interest,           American Stock Exchange
       $0.01 Par Value Per Share



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

                                      None
                            ------------------------
                                (Title of Class)

                INFORMATION REQUIRED IN REGISTRATION STATEMENT

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

      The  description  of  the  Registrant's  securities  to be  registered  is
      incorporated by reference to the  description  contained under the caption
      "Description  of  Capital  Structure"  in  the  Registrant's  Registration
      Statement  on  Form  N-2  (Nos.   333-100441   and   811-21225)  as  filed
      electronically  with the Securities and Exchange  Commission on October 9,
      2002 (Accession No. 0000898432-02-000694) ("Registration Statement on Form
      N-2"), as the same may be amended.

Item 2:  Exhibits.

      (a)   The following exhibits are being filed with the Commission:

             1.    Registrant's Registration Statement on Form N-2 is
                   incorporated herein by reference.

             2.    Form of Specimen  Certificate for  Registrant's  Shares,  par
                   value  $0.01 per  share,  which was filed  electronically  as
                   exhibit (d) to the  Registrant's  Registration  Statement  on
                   Form N-2, is incorporated herein by reference.

             3.    Declaration   of  Trust  of   Registrant,   which  was  filed
                   electronically   as   exhibit   (a)   to   the   Registrant's
                   Registration Statement on Form N-2, is incorporated herein by
                   reference.

             4.    By-Laws of  Registrant,  which were filed  electronically  as
                   exhibit (b) to the  Registrant's  Registration  Statement  on
                   Form N-2, are incorporated herein by reference.



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                                    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 behalf of the undersigned,  thereto duly authorized, this 10th day of October
2002.

                              EATON VANCE INSURED MASSACHUSETTS
                              MUNICIPAL BOND FUND I


                                          By: /s/ Thomas J. Fetter
                                             ------------------------
                                             Name:  Thomas J. Fetter
                                             Title:    President






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