EX-99 5 ex99-3.txt EXHIBIT 99.3 Exhibit 99-3 ------------ Certificate Pursuant to Section 1350 of Chapter 63 of Title 18 United States Code -------------------------------------------------------------- The undersigned officer hereby certifies, as to the Amended Quarterly Report on Form 10-Q/A of Exelon Corporation for the quarterly period ended March 31, 2002, that (i) the report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, and (ii) the information contained in the report fairly presents, in all material respects, the financial condition and results of operations of Exelon Corporation. Date: October 30, 2002 /s/ Ruth Ann M. Gillis ------------------------------------ Ruth Ann M. Gillis Senior Vice President and Chief Financial Officer Exelon Corporation