FEDERATED MUNICIPAL SECURITIES INCOME TRUST
Federated Investors Funds
4000 Ericsson Drive
Warrendale, Pennsylvania 15086-7561
October 31, 2017
EDGAR Operations Branch
U.S. Securities and Exchange Commission
Division of Investment Management
100 F Street, N.E.
Washington, DC 20549
RE: FEDERATED MUNICIPAL SECURITIES INCOME TRUST (the “Trust”)
Federated Michigan Intermediate Municipal Trust
Class A Shares
Federated Municipal High Yield Advantage Fund
Class A Shares
Class B Shares
Class C Shares
Class F Shares
Institutional Shares
Class T Shares
Federated Ohio Municipal Income Fund
Class A Shares
Class F Shares
Federated Pennsylvania Municipal Income Fund
Class A Shares
Class B Shares
Class T Shares
1933 Act File No. 33-36729
1940 Act File No. 811-6165__________________
Dear Sir or Madam:
Pursuant to Rule 497(j) of the Securities Act of 1933, the above-referenced Trust hereby certifies that the definitive forms of Prospectuses and Statements of Additional Information dated October 31, 2017, that would have been filed under Rule 497(c), do not differ from the forms of Prospectuses and Statements of Additional Information contained in the most recent Registration Statement for the Trust. This Registration Statement was electronically filed under Rule 485(b) as Post-Effective amendment No. 73 on October 26, 2017.
If you have any questions regarding this certification, please contact me at (412) 288-1165.
Very truly yours,
/s/ George F. Magera
George F. Magera
Assistant Secretary