309.1 Mercantile Group M. Mercantile Group M occupancy includes, among others, the use of a building or structure or a portion thereof for the display and sale of merchandise, and involves stocks of goods, wares or merchandise incidental to such purposes and accessible to the public. Mercantile occupancies shall include, but not be limited to, the following:

• Art galleries 3,000 square feet or less;

• Department stores;

• Drug stores;

• Markets;

• Greenhouses for display and sale of plants that provide public access;

• Motor fuel-dispensing facilities;

• Retail or wholesale stores;

• Sales rooms.