Miss. Code § 45-13-7
Fireworks kept for sale at wholesale shall be stored in a room set aside for the storage of fireworks only. Over the entrance to this room shall be posted a sign reading "FIREWORKS-NO SMOKING-KEEP OPEN FLAMES AWAY." Two (2) approved fire extinguishers shall be provided and kept in close proximity to the stock of fireworks in all buildings where fireworks are sold. Small temporary stands used for storing and selling fireworks only, in lieu of the fire extinguishers, may have a barrel of water and two (2) buckets available for use as fire extinguishing equipment. All fireworks kept for sale on counters must remain in original packages unless an attendant is on duty at all times at the counter where the fireworks are on display. Signs reading "FIREWORKS FOR SALE-NO SMOKING ALLOWED" shall be displayed in the section of any store set aside for the sale of fireworks.
Miss. Code § 45-13-7