35 Miss. Code R. § 6-02-06-501.02
All Counties will develop and use an update cycle of four (4) years. The base year will be the year immediately succeeding the real property update year. This process will result in the physical reviewing of 100 percent (100%) of all personal property accounts every four years. Each county is required to perform a close inspection and re-value approximately percent (25%) of all personal property parcels annually. In each subsequent year, an additional 25 percent (25%) of personal property parcels shall be physically reviewed and re-valued. The base year will be used to determine the minimum number of parcels that must be physically reviewed and verified each year during the update cycle. During the base year, the county must supply a list of the parcels to be closely inspected and re-valued during each of the four (4) years of the cycle. Counties should complete all the appraisals annually by June 30 or extension due date. Failure to provide the 25 percent (25%) personal property list by the first Monday in July or extension due date will constitute automatic failure of the audit. Any county failing to list 80 percent (80%) of all items found on the parcels reviewed in the random sample, will constitute failure of the personal property portion of the audit.
35 Miss. Code. R. § 6-02-06-501.02