<SEC-DOCUMENT>0001623632-16-003145-index.html : 20160614
<SEC-HEADER>0001623632-16-003145.hdr.sgml : 20160614
<ACCEPTANCE-DATETIME>20160614094054
ACCESSION NUMBER:		0001623632-16-003145
CONFORMED SUBMISSION TYPE:	485BPOS
PUBLIC DOCUMENT COUNT:		16
FILED AS OF DATE:		20160614
DATE AS OF CHANGE:		20160614
EFFECTIVENESS DATE:		20160614

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FEDERATED MUNICIPAL SECURITIES FUND INC
		CENTRAL INDEX KEY:			0000201801
		IRS NUMBER:				251304971
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		485BPOS
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	002-57181
		FILM NUMBER:		161712169

	BUSINESS ADDRESS:	
		STREET 1:		4000 ERICSSON DRIVE
		CITY:			WARRENDALE
		STATE:			PA
		ZIP:			15086-7561
		BUSINESS PHONE:		8003417400

	MAIL ADDRESS:	
		STREET 1:		4000 ERICSSON DRIVE
		CITY:			WARRENDALE
		STATE:			PA
		ZIP:			15086-7561

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LIBERTY MUNICIPAL SECURITIES FUND INC
		DATE OF NAME CHANGE:	19930517

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FEDERATED TAX FREE INCOME FUND INC
		DATE OF NAME CHANGE:	19920703

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FEDERATED MUNICIPAL SECURITIES FUND INC
		CENTRAL INDEX KEY:			0000201801
		IRS NUMBER:				251304971
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		485BPOS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-02677
		FILM NUMBER:		161712170

	BUSINESS ADDRESS:	
		STREET 1:		4000 ERICSSON DRIVE
		CITY:			WARRENDALE
		STATE:			PA
		ZIP:			15086-7561
		BUSINESS PHONE:		8003417400

	MAIL ADDRESS:	
		STREET 1:		4000 ERICSSON DRIVE
		CITY:			WARRENDALE
		STATE:			PA
		ZIP:			15086-7561

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LIBERTY MUNICIPAL SECURITIES FUND INC
		DATE OF NAME CHANGE:	19930517

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FEDERATED TAX FREE INCOME FUND INC
		DATE OF NAME CHANGE:	19920703
<SERIES-AND-CLASSES-CONTRACTS-DATA>
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<SERIES>
<OWNER-CIK>0000201801
<SERIES-ID>S000009070
<SERIES-NAME>FEDERATED MUNICIPAL SECURITIES FUND INC
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000024642
<CLASS-CONTRACT-NAME>Class A Shares
<CLASS-CONTRACT-TICKER-SYMBOL>LMSFX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000024643
<CLASS-CONTRACT-NAME>Class B Shares
<CLASS-CONTRACT-TICKER-SYMBOL>LMSBX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000024644
<CLASS-CONTRACT-NAME>Class C Shares
<CLASS-CONTRACT-TICKER-SYMBOL>LMSCX
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<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000051334
<CLASS-CONTRACT-NAME>Class F Shares
<CLASS-CONTRACT-TICKER-SYMBOL>LMFFX
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</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>485BPOS
<SEQUENCE>1
<FILENAME>fmsfform.htm
<TEXT>
Document 1 - file: fmsfform.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.INS <SEQUENCE>2 <FILENAME>fmsfi-20160526.xml <DESCRIPTION>XBRL INSTANCE FILE <TEXT> Document 2 - file: fmsfi-20160526.xml
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.SCH <SEQUENCE>3 <FILENAME>fmsfi-20160526.xsd <DESCRIPTION>XBRL SCHEMA FILE <TEXT> Document 3 - file: fmsfi-20160526.xsd
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.CAL <SEQUENCE>4 <FILENAME>fmsfi-20160526_cal.xml <DESCRIPTION>XBRL CALCULATION FILE <TEXT> Document 4 - file: fmsfi-20160526_cal.xml
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.DEF <SEQUENCE>5 <FILENAME>fmsfi-20160526_def.xml <DESCRIPTION>XBRL DEFINITION FILE <TEXT> Document 5 - file: fmsfi-20160526_def.xml
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.LAB <SEQUENCE>6 <FILENAME>fmsfi-20160526_lab.xml <DESCRIPTION>XBRL LABEL FILE <TEXT> Document 6 - file: fmsfi-20160526_lab.xml
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.PRE <SEQUENCE>7 <FILENAME>fmsfi-20160526_pre.xml <DESCRIPTION>XBRL PRESENTATION FILE <TEXT> Document 7 - file: fmsfi-20160526_pre.xml
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</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>10 <FILENAME>BarChart1.png <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 10 - file: BarChart1.png
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</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>15 <FILENAME>report.css <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 15 - file: report.css
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Document 17 - RAW XML: FilingSummary.xml
</DOCUMENT> <DOCUMENT> <TYPE>ZIP <SEQUENCE>19 <FILENAME>0001623632-16-003145-xbrl.zip <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 19 - file: 0001623632-16-003145-xbrl.zip
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