Any person or commercial entity that, before July 1, 2007, was legally engaged in the retail sale, wholesale sale, storage, or transport of fireworks or pyrotechnics, or any successor to any such person or commercial entity, may continue to engage in any such sales, storage, or transport activity, notwithstanding any changes made to the boundaries of the Black Hills Forest Fire Protection District that take effect on July 1, 2007.
SDCL 34-35-15.1