DuPont 2006 Annual Report Download - page 65

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Management’s Reports on Responsibility for Financial Statements and
Internal Control over Financial Reporting
Management’s Report on Responsibility for Financial Statements
Management is responsible for the Consolidated Financial Statements and the other financial information
contained in this Annual Report on Form 10-K. The financial statements have been prepared in accordance
with generally accepted accounting principles in the United States of America (GAAP) and are considered by
management to present fairly the company’s financial position, results of operations and cash flows. The
financial statements include some amounts that are based on management’s best estimates and judgments. The
financial statements have been audited by the company’s independent registered public accounting firm,
PricewaterhouseCoopers LLP. The purpose of their audit is to express an opinion as to whether the
Consolidated Financial Statements included in this Annual Report on Form 10-K present fairly, in all material
respects, the company’s financial position, results of operations and cash flows. Their report is presented on
the following page.
Management’s Report on Internal Control over Financial Reporting
Management is responsible for establishing and maintaining an adequate system of internal control over
financial reporting as defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934.
The company’s internal control over financial reporting is a process designed to provide reasonable assurance
regarding the reliability of financial reporting and the preparation of financial statements for external purposes
in accordance with generally accepted accounting principles. The company’s internal control over financial
reporting includes those policies and procedures that:
i. pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the
transactions and dispositions of the assets of the company;
ii. provide reasonable assurance that transactions are recorded as necessary to permit preparation of
financial statements in accordance with generally accepted accounting principles and that receipts and
expenditures of the company are being made only in accordance with authorization of management
and directors of the company; and
iii. provide reasonable assurance regarding prevention or timely detection of unauthorized acquisitions,
use or disposition of the company’s assets that could have a material effect on the financial
statements.
Internal control over financial reporting has certain inherent limitations which may not prevent or detect
misstatements. In addition, changes in conditions and business practices may cause variation in the
effectiveness of internal controls.
Management assessed the effectiveness of the company’s internal control over financial reporting as of
December 31, 2006, based on criteria set forth by the Committee of Sponsoring Organizations of the
Treadway Commission (COSO) in Internal Control-Integrated Framework. Based on its assessment and those
criteria, management concluded that the company maintained effective internal control over financial reporting
as of December 31, 2006.
Management’s assessment of the effectiveness of the company’s internal control over financial reporting as of
December 31, 2006 has been audited by PricewaterhouseCoopers LLP, an independent registered public
accounting firm, as stated in their report presented on the following page.
Charles O. Holliday, Jr. Jeffrey L. Keefer
Chairman of the Board and Executive Vice President
Chief Executive Officer and Chief Financial Officer
February 23, 2007
F-2