EXHIBIT 99.2 U.S. Securities and Exchange Commission 450 Fifth Street, N.W. Judiciary Plaza Washington, D.C. 20549 Ladies and Gentlemen: In a letter dated March 25, 2002, our independent public accountants, Arthur Andersen LLP ("Andersen"), represented to us that their audit of the consolidated financial statements of IES Utilities Inc. (name changed to Interstate Power and Light Company effective January 1, 2002) and subsidiaries as of December 31, 2001 and for the year then ended was subject to Andersen's quality control system for the U.S. accounting and auditing practice to provide reasonable assurance that their engagement was conducted in compliance with professional standards and that there was appropriate continuity of Andersen personnel working on the audit and availability of national office consultation. Availability of personnel at foreign affiliates of Andersen is not relevant to this audit. INTERSTATE POWER AND LIGHT COMPANY By: /s/ John E. Kratchmer --------------------- Name: John E. Kratchmer Title: Corporate Controller and Chief Accounting Officer March 25, 2002