S.C. Code Ann. § 45-4-20
As used in this chapter:
(A) "Bed and breakfast" means a residential-type lodging facility having no more than ten guestrooms where transient guests are fed and lodged for pay. This chapter does not apply to other types of transient accommodations, such as hotels, motels, motor inns, resorts, rooming houses, boarding houses, hunting lodges, or campgrounds. The phrase includes the following types of residential-type lodging facilities:
(B) "Residential-type lodging facility", means a facility that:
(C) "Guestroom" means a sleeping room, or a combination of rooms for sleeping and sitting, which includes, among other amenities: