R590-238-10. Availability and Maintenance of Working Papers of the Independent Certified Public Accountant

  (1) Each company shall require its independent certified public accountant to make all work papers prepared in the conduct of the audit of the company available for review by the commissioner or his appointed agent. The company shall require that the accountant retain the audit work papers for a period of not less than seven years after the period reported upon.

  (2) The review by the commissioner shall be considered an official investigation by the commissioner and all working papers obtained during the course of such investigation shall be confidential business papers and shall be classified as business confidential protected records. The company shall require that the independent certified public accountant provide photocopies of any of the working papers that the department considers relevant. The department may retain any photocopies of working papers.