Miss. Code Ann. § 31-7-113

The State Department of Audit, under the authority of Section 7-7-211 , shall design and prescribe the form of the inventory to be made, the form of the purchase requisition, the form of the purchase order, the form of the receiving report; prescribe systems of filing and prescribe the system of records necessary for the maintenance of a central purchase system, receiving system and an inventory control system; and shall promulgate and prescribe such other documentation, procedures and regulations necessary for the efficient maintenance of such systems.