15 Miss. Code R. § 16-1-1.47.4
The building shall be structurally sound, free from leaks and excessive moisture, in good repair, and painted at sufficient intervals to be reasonably attractive inside and out. One-story structures shall have a one-hour fire resistance rating except that walls and ceiling of high fire hazard areas shall be of two-hour fire resistance rating in accordance with NFPA #220. Multistoried buildings shall be of fire resistive materials. Multi-storied buildings shall be of fire resistive materials. One hour fire resistance rating as prescribed by the current edition of the National Fire Protection Association (NFPA) Standard 220, types of Building Construction. (Example: Type II (111), or Type V (111). (Except walls and ceilings of high fire hazard areas shall be of two-hour fire resistance rating).
15 Miss. Code. R. § 16-1-1.47.4