The frequency and content of reporting are determined collaboratively by the CAE, SM, and the board, and also depends on the importance of the information & the urgency of the actions to be taken.
Reporting and communication include information: audit charter, independence, plan, and progress against plan, resource requirement, results of audit activities, conformance with code of ethics and standards, and action plans to address the significant conformance issues, management response to risks may be unacceptable.