Every four years the State Auditor shall employ a private audit firm to perform a fiduciary audit on the Retirement System Investment Commission. The audit firm must be selected by the State Auditor. A report from the private audit firm must be completed by January 15, 2019, and every four years after that time. Upon completion, the report must be submitted to the Governor, the President of the Senate, the Speaker of the House of Representatives, the Chairman of the Senate Finance Committee, and the Chairman of the House Ways and Means Committee.