Exhibit 77Q3 to Form N-SAR for
Federated Municipal Securities Fund, Inc.

PEO Certifications

(a) (i):  The registrant's President and Treasurer have concluded that the
            registrant's disclosure controls and procedures (as defined in rule
            30a-2 under the Investment Company Act of 1940 (the "Act") )
            are effective in design and operation and are sufficient to form
		the basis of the certifications required by Rule 30a-2 under the
		Act, based on their evaluation of these disclosure controls and
		procedures within 90 days of the filing date of this report on Form
		N-SAR.

(a) (ii): There were no significant changes in the registrant's internal
           controls, or the internal controls of its service providers, or in
           other factors that could significantly affect these controls
           subsequent to the date of their evaluation, including any
           corrective actions with regard to significant deficiencies and
           material weaknesses.

(a) (iii): CERTIFICATIONS

I, J. Christopher Donahue, certify that:

1.   I have reviewed this report on Form N-SAR of Federated Municipal
     Securities Fund, Inc. ("registrant");

2.   Based on my knowledge, this report does not contain any untrue statement
	of a material fact or omit to state a material fact necessary to make the
     statements made, in light of the circumstances under which such statements
     were made, not misleading with respect to the period covered by this
     report;

3.   Based on my knowledge, the financial information included in this report,
     and the financial statements on which the financial information is based,
     fairly present in all material respects the financial condition, results
	 of operations, changes in net assets, and cash flows (if the financial
     statements are required to include a statement of cash flows) of the
     registrant as of, and for, the periods presented in this report;

4.   The registrant's other certifying officers and I are responsible for
     establishing and maintaining disclosure controls and procedures (as
	defined in rule 30a-2(c) under the Investment Company Act) for the
	registrant and have:

a)   designed such disclosure controls and procedures to ensure that material
     information relating to the registrant, including its consolidated
     subsidiaries, is made known to us by others within those entities,
     particularly during the period in which this report is being prepared;

b)   evaluated the effectiveness of the registrant's disclosure controls
     and procedures as of a date within 90 days prior to the filing date
     of this report (the "Evaluation Date"); and

c)   presented in this report our conclusions about the effectiveness
     of the disclosure controls and procedures based on our evaluation
     as of the Evaluation Date;

5.   The registrant's other certifying officers and I have disclosed, based
     on our most recent evaluation, to the registrant's auditors and the
     audit committee of the registrant's board of directors (or persons
     performing the equivalent functions):

a)   all significant deficiencies in the design or operation of internal
     controls which could adversely affect the registrant's ability to
     record, process, summarize, and report financial data and have
     identified for the registrant's auditors any material weaknesses in
     internal controls; and

b)   any fraud, whether or not material, that involves management or other
     employees who have a significant role in the registrant's internal
     controls; and

6.   The registrant's other certifying officers and I have indicated in this
     report whether or not there were significant changes in internal controls
     or in other factors that could significantly affect internal controls
     subsequent to the date of our most recent evaluation, including any
     corrective actions with regard to significant deficiencies and material
     weaknesses.


Date: November 22, 2002
/S/ J. Christopher Donahue
President - Principal Executive Officer


Exhibit 77Q3 to Form N-SAR for
Federated Municipal Securities Fund, Inc.

PFO Certifications

 (a) (i): The registrant's President and Treasurer have concluded that the
            registrant's disclosure controls and procedures (as defined in rule
            30a-2 under the Investment Company Act of 1940 (the "Act") )
            are effective in design and operation and are sufficient to form
		the basis of the certifications required by Rule 30a-2 under the
		Act, based on their evaluation of these disclosure controls and
		procedures within 90 days of the filing date of this report on Form
		N-SAR.

(a) (ii): There were no significant changes in the registrant's internal
           controls, or the internal controls of its service providers, or in
           other factors that could significantly affect these controls
           subsequent to the date of their evaluation, including any
           corrective actions with regard to significant deficiencies and
           material weaknesses.

(a) (iii): CERTIFICATIONS

I, Richard J. Thomas certify that:

1.   I have reviewed this report on Form N-SAR of Federated Municipal
     Securities Fund, Inc. ("registrant");

2.   Based on my knowledge, this report does not contain any untrue statement
	of a material fact or omit to state a material fact necessary to make the
     statements made, in light of the circumstances under which such statements
     were made, not misleading with respect to the period covered by this
     report;

3.   Based on my knowledge, the financial information included in this report,
     and the financial statements on which the financial information is based,
     fairly present in all material respects the financial condition, results
	of operations, changes in net assets, and cash flows (if the financial
     statements are required to include a statement of cash flows) of the
     registrant as of, and for, the periods presented in this report;

4.   The registrant's other certifying officers and I are responsible for
     establishing and maintaining disclosure controls and procedures (as
	defined in rule 30a-2(c) under the Investment Company Act) for the
	registrant and have:

a)   designed such disclosure controls and procedures to ensure that material
     information relating to the registrant, including its consolidated
     subsidiaries, is made known to us by others within those entities,
     particularly during the period in which this report is being prepared;

b)   evaluated the effectiveness of the registrant's disclosure controls
     and procedures as of a date within 90 days prior to the filing date
     of this report (the "Evaluation Date"); and

c)   presented in this report our conclusions about the effectiveness
     of the disclosure controls and procedures based on our evaluation
     as of the Evaluation Date;

5.   The registrant's other certifying officers and I have disclosed, based
     on our most recent evaluation, to the registrant's auditors and the
     audit committee of the registrant's board of directors (or persons
     performing the equivalent functions):

a)   all significant deficiencies in the design or operation of internal
     controls which could adversely affect the registrant's ability to
     record, process, summarize, and report financial data and have
     identified for the registrant's auditors any material weaknesses in
     internal controls; and

b)   any fraud, whether or not material, that involves management or other
     employees who have a significant role in the registrant's internal
     controls; and

6.   The registrant's other certifying officers and I have indicated in this
     report whether or not there were significant changes in internal controls
     or in other factors that could significantly affect internal controls
     subsequent to the date of our most recent evaluation, including any
     corrective actions with regard to significant deficiencies and material
     weaknesses.


Date: November 22, 2002
/S/ Richard J. Thomas
Treasurer - Principal Financial Officer