15 Miss. Code R. § 2-11-1.16.1
All local health offices, pharmacies, drug stores, apothecary shops, wholesale drug houses and other entities or institutions located within the State of Mississippi and selling or offering to sell or furnish to the public certain biologicals to be used for the purpose of preventing or curing disease shall maintain refrigeration systems in which said biologicals shall be stored at all times. The temperature of the refrigeration system shall not be above 46º F at any time. In the compartment of the refrigeration system where biologicals are stored, a standard thermometer shall be so placed in a fixed position as to indicate the average temperature of the storage compartment. Except for oral polio vaccine, varicella vaccine and other biologicals which must remain frozen until time of use, products should not be placed against ice or stored and maintained at temperatures below 35º F
15 Miss. Code. R. § 2-11-1.16.1