Pub. L. 108-27, tit. V, sec. 501
TIME FOR PAYMENT OF CORPORATE ESTIMATED TAXES.
SEC. 501. TIME FOR PAYMENT OF CORPORATE ESTIMATED TAXES. Notwithstanding section 6655 of the Internal Revenue Code of 1986, 25 percent of the amount of any required installment of corporate estimated tax which is otherwise due in September 2003 shall not be due until October 1, 2003.