(a) All retailers are forbidden to expose fireworks where the sun shines through glass on the merchandise displayed, except where such fireworks are in the original package.
(b) All fireworks displayed for sale must remain in original packages, except where an attendant is on constant duty at all times where such fireworks are on display; provided, that fireworks in open stock may be kept in show cases or counters out of the reach of the public without an attendant being on duty.
(c) Signs reading “Fireworks for Sale - No Smoking Allowed” shall be displayed in the section of a store or premises set aside for the sale of fireworks.