15 Miss. Code R. § 16-1-4.1.4
All fires, explosions, natural disasters as well as avoidable deaths, or avoidable, serious, or life-threatening injuries to clients resulting from fires, explosions, and natural disasters shall be reported by telephone to the Life Safety Code Division of the licensing agency by the next working day after the occurrence. The licensing agency will provide the appropriate forms to the RBIR which shall be completed and returned within fifteen (15) calendar days of the occurrence. All reports shall be complete and thorough and shall record, at a minimum the causal factors, date and time of occurrence, exact location of occurrence within or without the RBIR, and attached thereto shall be all police, fire, or other official reports
15 Miss. Code. R. § 16-1-4.1.4