<Page>
Item 10
Dryden Municipal Series Fund
Annual period ending 08/31/03
File No. 811-4023
CERTIFICATIONS
I, Judy A. Rice, certify that:
1. I have reviewed this report on Form N-CSR of Dryden
Municipal Series Fund;
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 statements, and other
financial information included in this report, 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-3(c) under
the Investment Company Act of 1940) for the registrant and have:
a) Designed such disclosure controls and procedures, or
caused such disclosure controls and procedures to be
designed under our supervision, 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 and presented in
this report our conclusions about the effectiveness of
the disclosure controls and procedures, as of a date
within 90 days prior to the filing date of this report
based on such evaluation; and;
c) Disclosed in this report any change in the
registrant's internal control over financial reporting
that occurred during the registrant's most recent
fiscal half-year (the registrant's second fiscal half-
year in the case of an annual report) that has
materially affected, or is reasonably likely to
materially affect, the registrant's internal control
over financial reporting; and
5. The registrant's other certifying officers and I have
disclosed 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 and material weaknesses
in the design or operation of internal controls which
are reasonably likely to adversely affect the
registrant's ability to record, process, summarize,
and report financial information; and
b) Any fraud, whether or not material, that involves
management or other employees who have a significant
role in the registrant's internal control over financial reporting.
Date: October 28, 2003
/s/Judy A. Rice
---------------------------------
Judy A. Rice
President and Principal Executive
Officer
<Page>
Item 10
Dryden Municipal Series Fund
Annual period ending 08/31/03
File No. 811-4023
CERTIFICATIONS
I, Grace C. Torres, certify that:
1. I have reviewed this report on Form N-CSR of Dryden
Municipal Series Fund;
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 statements, and other
financial information included in this report, 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-3(c) under
the Investment Company Act of 1940) for the registrant and have:
a. Designed such disclosure controls and procedures, or
caused such disclosure controls and procedures to be
designed under our supervision, 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 and presented in
this report our conclusions about the effectiveness of
the disclosure controls and procedures, as of a date
within 90 days prior to the filing date of this report
based on such evaluation; and;
c. Disclosed in this report any change in the
registrant's internal control over financial reporting
that occurred during the registrant's most recent
fiscal half-year (the registrant's second fiscal half-
year in the case of an annual report) that has
materially affected, or is reasonably likely to
materially affect, the registrant's internal control
over financial reporting; and
5. The registrant's other certifying officers and I have
disclosed 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 and material weaknesses
in the design or operation of internal controls which
are reasonably likely to adversely affect the
registrant's ability to record, process, summarize,
and report financial information; and
b. Any fraud, whether or not material, that involves
management or other employees who have a significant
role in the registrant's internal control over financial reporting.
Date: October 28, 2003
/s/Grace C. Torres
---------------------------------
Grace C. Torres
Treasurer and Chief Financial Officer