Exhibit EX-99.CERT

                                 CERTIFICATIONS
                                 --------------

I, W. Douglas Beck, President of Fort Dearborn Income Securities, Inc. certify
that:

1.      I have reviewed this report on Form N-CSR of Fort Dearborn Income
        Securities, Inc.;

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 officer(s) 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) and
        internal control over financial reporting (as defined in Rule 30a-3(d)
        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) Designed such internal control over financial reporting, or
                 caused such internal control over financial reporting to be
                 designed under our supervision, to provide reasonable assurance
                 regarding the reliability of financial reporting and the
                 preparation of financial statements for external purposes in
                 accordance with generally accepted accounting principles;

             (c) 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

             (d) 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 officer(s) 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 control over financial
                 reporting 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.

By:     /s/ W. Douglas Beck
        -------------------
        W. Douglas Beck
        President

Date:   November 23, 2005
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I, Joseph T. Malone, Treasurer of Fort Dearborn Income Securities, Inc., certify
that:

1.      I have reviewed this report on Form N-CSR of Fort Dearborn Income
        Securities, Inc.;

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 officer(s) 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) and
        internal control over financial reporting (as defined in Rule 30a-3(d)
        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) Designed such internal control over financial reporting, or
                 caused such internal control over financial reporting to be
                 designed under our supervision, to provide reasonable assurance
                 regarding the reliability of financial reporting and the
                 preparation of financial statements for external purposes in
                 accordance with generally accepted accounting principles;

             (c) 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


             (d) 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 officer(s) 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 control over financial
                 reporting 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.

By:     /s/ Joseph T. Malone
        --------------------
        Joseph T. Malone
        Treasurer

Date:   November 23, 2005
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