Section 91 - Internal audit responsibilities1. The temporary president of the senate and the speaker of the assembly or their designees shall determine, and periodically review such determination of, whether an internal audit function within their respective house is required. Establishment of such function shall be based upon an evaluation of costs and benefits of implementation and other factors that are determined to be relevant. In the event it is determined that an internal audit function is required for one or both houses, the temporary president of the senate or the speaker of the assembly shall establish an internal audit function within the respective house which operates in accordance with generally accepted standards for internal auditing. Any such internal audit function shall be directed and shall report in a manner prescribed by the respective house. The internal audit function shall evaluate the respective house's internal controls, identify internal control weaknesses that have not been corrected and make recommendations to correct these weaknesses.2. In the event the temporary president of the senate or the speaker of the assembly does not establish an internal audit function pursuant to subdivision one of this section he or she shall nevertheless establish and maintain the program of internal control review required by section ninety of this article.