[EX-99.CERT]

                                                                  Exhibit (b)(1)

                           SECTION 302 CERTIFICATIONS

         I, James D. Dondero, certify that:

         1. I have reviewed this report on Form N-CSR of Prospect Street Income
Shares 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 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 of 1940) 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");

                  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.

                                          By: /s/ James D. Dondero
                                              -----------------------
                                              James D. Dondero
                                              Chief Executive Officer

                                          Date: August 21, 2003



                           SECTION 302 CERTIFICATIONS

         I, M. Jason Blackburn, certify that:

         1. I have reviewed this report on Form N-CSR of Prospect Street Income
Shares 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 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 of 1940) 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");

                  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.

                                        By: /s/ M. Jason Blackburn
                                            -----------------------
                                            M. Jason Blackburn
                                            Chief Financial Officer

                                        Date: August 21, 2003