The audit committee must have a written charter that addresses the committee’s purpose – which, at minimum, must be to: assist board oversight of (listed company’s financial statements, (2) the listed company’s compliance with legal and regulatory requirements, (3) the independent auditor’s qualifications and independence, and (4) the performance of the listed company’s internal audit function and independent auditors (if the listed company does not yet have an internal audit function because it is availing itself of a transition period pursuant to Section 303A.00, the charter must provide that the committee will assist board oversight of the design and implementation of the internal audit function).