EXHIBIT 99.1

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of The Cinergy Corp. Non-Union Employees’ 401(k) Plan (the “Plan”) on Form 11-K for the fiscal year ended December 31, 2002 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Wendy L. Aumiller, Chairperson of the Cinergy Corp. Benefits Committee, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge and belief, that:

(1)  The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)  The information contained in the Report fairly presents, in all material respects, the net assets available for benefits and the changes in net assets available for benefits of the Plan.

/s/	Wendy L. Aumiller
Wendy L. Aumiller
Chairperson, Cinergy Corp. Benefits Committee
June 27, 2003

A signed original of this written statement required by Section 906 has been provided to the Plan and will be retained by the Plan and furnished to the Securities and Exchange Commission or its staff upon request.