In this chapter, the following terms have the meanings indicated. Terms Defined. “Class C mercantile occupancy” means a mercantile occupancy of not more than 3,000 square feet gross area used for sales purposes on one story only, excluding mezzanines. “Ground-based sparkling device” means a device that is: Nonaerial; Nonexplosive; Labeled in accordance with the requirements of the U.S. Consumer Products Safety Commission; and Considered consumer fireworks as defined in NFPA 1 Fire Code as incorporated by reference in COMAR 29.06.01. “Open-air mercantile operation” means an operation conducted outside of all structures, with the operations area devoid of all walls and roofs except for small, individual, weather canopies. “Prepackaged ground-based sparkling device merchandise” means ground-based sparkling device items or groups of ground-based sparkling device items that have been packaged by the manufacturer or distributor before they are offered for sale to the consumer.