1. Not later than December 1 of each year on forms and pursuant to the instructions prescribed by the department of management, the board of trustees shall file with the county auditor an annual financial report showing the rural improvement zone’s financial condition as of June 30 and the results of operations for the year then ended.
 2. A rural improvement zone is subject to annual audit by the auditor of state. In lieu of an audit by the auditor of state, the rural improvement zone may contract with or employ a certified public accountant to conduct the audit pursuant to the applicable terms and conditions prescribed by sections 11.6, 11.14, 11.19, and 11.41. The audit format shall be as prescribed by the auditor of state. The rural improvement zone shall pay all expenses incurred by the auditor of state in conducting an audit under this section.