S.C. Code Ann. § 56-3-670
(B) The department shall issue to bona fide farmers special farm vehicle licenses on an annual basis for farm trucks for a fee as follows according to the gross vehicle weight of the truck:
(7) 72,501 to 80,000 pounds $120.00.
Nothing in this section exempts farm vehicles from gross weight-axle requirements contained in Section 56-5-4140.
Gross Vehicle Weight Fee