The Audit Committee Charter establishes the purpose, composition, meetings, oversight areas, and responsibilities of the Audit Committee of Integrys Energy Group's Board of Directors. The Committee assists the Board in overseeing financial reporting, compliance, internal controls, risk management, and the independent auditor relationship. Key responsibilities include selecting and overseeing the independent auditor, reviewing financial statements and disclosures, and establishing procedures for complaints and anonymous submissions regarding accounting or auditing matters.