EXHIBIT 31.2
                       CERTIFICATION PURSUANT TO SECTION 302
                         OF THE SARBANES-OXLEY ACT OF 2002

I, Susan Tomasky, certify that:

1.       I have reviewed this quarterly report on Form 10-Q of:

                    American Electric Power Company, Inc.
                           AEP Generating Company
                          AEP Texas Central Company
                           AEP Texas North Company
                          Appalachian Power Company
                       Columbus Southern Power Company
                       Indiana Michigan Power Company
                           Kentucky Power Company
                             Ohio Power Company
                     Public Service Company of Oklahoma
                    Southwestern Electric Power Company;

2.       Based on my  knowledge,  this  quarterly  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 quarterly
            report;

3.       Based on my knowledge, the financial  statements, and other financial
            information included in this quarterly report, fairly present in
            all material respects the financial  condition, results of
            operations  and cash flows of the registrant as of, and for,
            the periods presented in this quarterly report;

4.       The registrant's  other certifying  officers and I are responsible for
            establishing and maintaining  disclosure  controls and procedures
            (as defined in Exchange Act Rules 13a-15e and 15d-15e)
            for the registrant and we 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 quarterly report is being prepared;

              b.     evaluated  the  effectiveness  of the  registrant's
                     disclosure  controls  and  procedures  and  presented in
                     this quarterly  report our conclusions  about the
                     effectiveness of the disclosure  controls and procedures,
                     as of the end of the period covered by this quarterly
                     report based on such evaluation; and

              c.     disclosed in this quarterly report any change in the
                     registrant's  internal control over financial reporting
                     that occurred  during the  registrant's  most recent
                     fiscal  quarter 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,
            based on our most recent  evaluation of internal control over
            financial  reporting,  to the  registrant's  auditors and the audit
            committee of  registrant's  board of directors (or persons
            performing the equivalent function):

              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.

Date: August 12, 2003                By:    /s/  Susan Tomasky
                                            -----------------------------
                                                 Susan Tomasky
                                                 Chief Financial Officer