Exhibit (a)(v) under Form N-1A
                                            Exhibit 3(i) under Item 601/Reg. S-K

                                  AMENDMENT #12
                           TO THE RESTATED AND AMENDED
                              DECLARATION OF TRUST

                        FEDERATED INCOME SECURITIES TRUST

                               Dated May 19, 2000

                This Declaration of Trust is amended as follows:

     Strike the first paragraph of Section 5 of Article III from the Declaration
of Trust and substitute in its place the following:

     "Section  5.  Establishment  and  Designation  of Series or Class.  Without
     limiting the authority of the Trustees set forth in Article XII, Section 8,
     inter alia, to establish and designate any additional Series or Class or to
     modify the rights and  preferences  of any  existing  Series or Class,  the
     Series and Classes of the Trust are established and designated as:

                          Federated Capital Income Fund
                                 Class A Shares
                                 Class B Shares
                                 Class C Shares
                                 Class F Shares
                 Federated Fund for U. S. Government Securities
                                 Class A Shares
                                 Class B Shares
                                 Class C Shares
                       Federated Intermediate Income Fund
                          Institutional Service Shares
                              Institutional Shares
                     Federated Muni and Stock Advantage Fund
                                 Class A Shares
                                 Class B Shares
                                 Class C Shares
                        Federated Short-Term Income Fund
                                 Class A Shares
                                 Class Y Shares
                          Institutional Service Shares
                              Institutional Shares

     The  undersigned  hereby certify that the above stated  Amendment is a true
and correct  Amendment to the  Declaration of Trust,  as adopted by the Board of
Trustees at a meeting on the 13th day of November, 2003.

     WITNESS the due execution hereof this 13th day of November, 2003.

/s/ John F. Donahue                 /s/ Lawrence D. Ellis, M.D.
John F. Donahue                     Lawrence D. Ellis, M.D.

/s/ Thomas G. Bigley                /s/ Peter E. Madden
Thomas G. Bigley                    Peter E. Madden

/s/ John T. Conroy, Jr.             /s/ Charles F. Mansfield, Jr.
John T. Conroy, Jr.                 Charles F. Mansfield, Jr.

/s/ Nicholas P. Constantakis        /s/ John E. Murray, Jr.
Nicholas P. Constantakis            John E. Murray, Jr.

/s/ John F. Cunningham              /s/ Marjorie P. Smuts
John F. Cunningham                  Marjorie P. Smuts

/s/ J. Christopher Donahue          /s/ John S. Walsh
J. Christopher Donahue              John S. Walsh