SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                     FORM 15

      Certification and Notice of Termination of Registration under Section
      12(g) of the Securities Exchange Act of 1934 or Suspension of Duty to
                    File Reports Under Sections 13 and 15(d)
                     of the Securities Exchange Act of 1934
                        Commission File Number 001-13135

                                 HSB GROUP, INC.
             (Exact name of registrant as specified in its charter)


        P.O. BOX 5024, ONE STATE STREET, HARTFORD, CONNECTICUT 06102-5024
                                 (860) 722-1866
               (Address, including zip code, and telephone number,
                      including area code, of registrant's
                          principal executive offices)

                         COMMON STOCK, WITHOUT PAR VALUE
            (Title of each class of securities covered by this Form)


     Please  place  an X in  the  box(es)  to  designate  the  appropriate  rule
provision(s) relied upon to terminate or suspend the duty to file reports:

Rule 12g-4(a)(1)(i)        [x]                       Rule 12h-3(b)(1)(ii)  [  ]
Rule 12g-4(a)(1)(ii)       [  ]                       Rule 12h-3(b)(2)(i)  [  ]
Rule 12g-4(a)(2)(i)        [  ]                      Rule 12h-3(b)(2)(ii)  [  ]
Rule 12g-4(a)(2)(ii)       [  ]                                Rule 15d-6  [  ]
Rule 12h-3(b)(1)(i)        [x]

     Approximate  number of holders of record as of the  certification or notice
date: 1

     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, HSB
Group, Inc. has caused this  certification/notice  to be signed on its behalf by
the undersigned duly authorized person.

DATE: November 22, 2000                       By: /s/ ROBERT C. WALKER
                                                  ------------------------------
                                                  Name:  Robert C. Walker
                                                  Title: Senior Vice President
                                                         and General Counsel

Instruction:  This  form is  required  by Rules  12g-4,  12h-3  and 15d-6 of the
General Rules and  Regulations  under the  Securities  Exchange Act of 1934. The
registrant  shall file with the Commission three copies of Form 15, one of which
shall be manually signed.  It may be signed by an officer of the registrant,  by
counsel or by any other duly authorized person. The name and title of the person
signing the form shall be typed or printed under the signature.