Mercantile Occupancy, Class C : All stores of not more than 280 m2 (3000 ft2) gross area that use a maximum of one story or one story and mezzanines for sales purposes
NFPA 101B Code for Means of Egress for Buildings and Structures, 2002 ed. https://law.resource.org/pub/us/code/ibr/nfpa.101. 2003.pdf, (Code: Means of Egress for Build and Struc - Amer) {246 NFC}