S.C. Code Regs. 8-627. Exemption

(1) Factory built structures meeting all of the following criteria will be exempt from these regulations. To be exempt the unit must: (a) be designed for continuous over-the-road travel; and (b) have a maximum width of eight (8) feet in its transportable mode; and (c) have a maximum length of fifty (50) feet; and (d) have permanently mounted running lights; and (e) have a current license plate; and (f) have permanent axle(s) and under carriage system; and (g) have stabilizers and permanent front jack stands; and (h) have a permanent fifth (5th) wheel connection; and (i) have a permanent suspension system; and (j) provide an electrical cord for temporary electrical service. (2) Self-propelled structures, containing an integral cab and licensed as a motor vehicle will be exempt from these regulations.