Exhibit EX-99.CERT

                                 CERTIFICATIONS
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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) 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 second
              fiscal quarter of the period covered by this 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: May 31, 2005
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I, Joseph T. Malone, Vice President, Treasurer and Principal Accounting Officer
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) 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 second
              fiscal quarter of the period covered by this 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
      Vice President, Treasurer and Principal Accounting Officer

Date: May 31, 2005
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