Because of widespread material weaknesses in the Internal Revenue Service's (IRS) operations, GAO does not believe that IRS can be reasonably sure that the objectives of the Federal Managers' Financial Integrity Act of 1982 have been achieved. The act requires agencies to disclose the condition of their internal control and accounting systems. The IRS process for identifying, disclosing, and correcting material weaknesses must be substantially improved if the agency is to produce reliable information that top management can use to control costs and improve operations. Top management involvement is an essential first step in bolstering IRS operations and accurately reporting IRS internal control and accounting system weaknesses to the Secretary of the Treasury.