Exhibit (b)
                                CERTIFICATIONS



                CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350
                       AS ADOPTED PURSUANT TO SECTION 906
                        OF THE SARBANES-OXLEY ACT OF 2002

I, Jimmy D. Gambill, Chief Executive Officer of the FRANKLIN FEDERAL TAX-FREE
INCOME FUND (the "Registrant"), certify, pursuant to 18 U.S.C. Section 1350 as
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my
knowledge:

     1.   The periodic report on Form N-CSR of the Registrant for the period
          ended 10/31/2007 (the "Form N-CSR") fully complies with the
          requirements of Section 13(a) or 15(d) of the Securities Exchange Act
          of 1934; and

     2.   The information contained in the Form N-CSR fairly presents, in all
          material respects, the financial condition and results of operations
          of the Registrant.

Dated:  12/27/07

                            /s/ JIMMY D. GAMBILL

                            Jimmy D. Gambill
                            Chief Executive Officer - Finance and Administration







                CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350
                       AS ADOPTED PURSUANT TO SECTION 906
                        OF THE SARBANES-OXLEY ACT OF 2002

I, Galen G. Vetter, Chief Financial Officer of the FRANKLIN FEDERAL TAX-FREE
INCOME FUND (the "Registrant"), certify, pursuant to 18 U.S.C. Section 1350 as
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my
knowledge:

     1.   The periodic report on Form N-CSR of the Registrant for the period
          ended 10/31/2007 (the "Form N-CSR") fully complies with the
          requirements of Section 13(a) or 15(d) of the Securities Exchange Act
          of 1934; and

     2.   The information contained in the Form N-CSR fairly presents, in all
          material respects, the financial condition and results of operations
          of the Registrant.

Dated:  12/27/07

                                    /s/ GALEN G. VETTER

                                    Galen G. Vetter
                                    Chief Financial Officer